{"as_of":"2026-08-21T12:18:00Z","caps":{"database_statements":6,"inbound":100,"outbound":100},"context_digest":"sha256:f176374b4fdae66452876fb2cfefd2952696c7358530b6c5b14197849e9187e6","coverage":[{"denominator":43,"lane":"reference_resolution","note":"Typed states for the displayed outbound observations.","records_observed":43,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-10T21:28:25.056576Z","state":"measured"},{"denominator":44,"lane":"standing_notices","note":"One-hop event checks from named stored sources.","records_observed":44,"source":"scholarly_work_events, retraction_status_cache","source_observed_at":"2026-08-21T06:32:19.484+00:00","state":"measured"},{"denominator":1,"lane":"inbound_itemization","note":"Pith citing papers itemized under the disclosed page cap.","records_observed":1,"source":"paper_references, paper_reference_links","source_observed_at":"2026-08-10T20:14:24.825781Z","state":"measured"},{"denominator":1,"lane":"external_citation_measurements","note":"A source-named dated measurement, never combined with another source.","records_observed":0,"source":"pith","source_observed_at":"2026-08-10T20:14:25.066933Z","state":"measured"}],"external_citation_measurements":[],"inbound":[{"citation":{"cited_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"cited_work":{"arxiv_id":"2501.04789","doi":null,"metadata_source":"pith","pith_arxiv_id":"2501.04789","snapshot_observed_at":"2026-08-10T20:14:25.066933Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","venue":"eess.AS","work_id":"993d3b18-8924-40a7-a668-24322a3b49cb","year":2025},"citing_paper":{"arxiv_id":"2501.09159","last_updated":"2025-01-15T21:22:07Z","snapshot_observed_at":"2026-08-20T10:37:48.271090Z","submitted_at":"2025-01-15T21:22:07Z","title":"Towards detecting the pathological subharmonic voicing with fully convolutional neural networks","version":1},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-10T20:14:24.825781Z"},"links":{"cited_paper":"/paper/2501.04789","citing_paper":"/paper/2501.09159"},"observation_digest":"sha256:2d5bf347f2cccd271df33e653a732ee33d22853ef53f6df8e5d2cd9d9563bf57","observation_id":"98b4ca36-38e6-48d6-8d9e-ff3d8cd8ff48","resolution":{"observed_at":"2026-08-10T20:14:25.077199Z","resolver_source":"local_arxiv","status":"verified_exact"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}}],"links":{"evidence":"/evidence","html":"/paper/2501.04789/citation-record","integrity":"/paper/2501.04789/integrity","json":"/paper/2501.04789/citation-record.json","paper":"/paper/2501.04789"},"outbound":[{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.287157Z","title":"Microphone and electroglottographic data from dyspho- nic patients: Type 1, 2 and 3 signals,","venue":null,"work_id":null,"year":1998},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":1,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.287157Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:41605ce34d467462797d12e394f0737b347ab4fa35cbf8de78ac1da4fe564658","observation_id":"8f71d17b-3161-4ee9-916d-356e53ab9ea9","resolution":{"observed_at":"2026-08-10T21:28:24.287157Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.336370Z","title":"Diplophonia reappraised,","venue":null,"work_id":null,"year":1999},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":2,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.336370Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:b68275830051ea4417c1561c81a5acb6fae5c582b08372db42873c6a51a06738","observation_id":"980548df-3bc0-4512-9555-8ce4526f173f","resolution":{"observed_at":"2026-08-10T21:28:24.336370Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:26.410842Z","title":"A study of subharmonics in connected speech material,","venue":null,"work_id":"54fae881-1458-4413-9488-91ae5c358601","year":2013},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":3,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.414809Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:ce977fc0b6fd4834189eddd56947c19cd02dbef4e1271401c9d9f98f32134917","observation_id":"ee86c7b8-81dd-4e22-8db0-065b262af09f","resolution":{"observed_at":"2026-08-10T21:28:26.416302Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:26.392708Z","title":"Investigation of vocal bifurcations and voice patterns induced by asymmetry of pathological vocal folds,","venue":null,"work_id":"fb33107e-b0d3-4f0d-9c22-c7222eb7ca13","year":2023},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":4,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.435477Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:ebf94b5b84bba643098e3b859542c9fbda2f79188482f3b701c757fbfb0ce1cb","observation_id":"dfecd837-21dd-451b-93c7-b74689ca710a","resolution":{"observed_at":"2026-08-10T21:28:26.398708Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.465366Z","title":"Acoustic characteristics of rough voice: Subharmonics,","venue":null,"work_id":null,"year":1997},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":5,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.465366Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:f10d4f2a19af85290a08f041c247b17d5fbee3aea73fd2f1a178cc317fccf9f8","observation_id":"236f3962-91da-4833-9845-bb8c29e2cdb3","resolution":{"observed_at":"2026-08-10T21:28:24.465366Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:26.363365Z","title":null,"venue":null,"work_id":"95195217-fb7b-4362-b3a4-b906f5ba6cac","year":1994},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":6,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.477091Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:20365c739636afb65ae938129d4dd59f7a60dccda9c7222f161c70606e37c752","observation_id":"55237ee6-cf63-484d-8a1b-265d8b6543fd","resolution":{"observed_at":"2026-08-10T21:28:26.369457Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:26.344209Z","title":"High-speed digital image analysis of vocal cord vibration in diplo- IKUMA ET AL. - JAN. 2025 8 phonia,","venue":null,"work_id":"c52c37bc-8029-4064-872e-b59f01177d48","year":2025},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":7,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.485444Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:a358cfab0736211e5bf346cf43d7a7c37964c9bf5c006f6445e7dd784bb217f8","observation_id":"1cfb74de-fe1b-418c-adbc-2aa66d008f22","resolution":{"observed_at":"2026-08-10T21:28:26.350318Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.497084Z","title":"The mechanisms of subharmonic tone generation in a synthetic larynx model,","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":8,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.497084Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:3d2995328961bb4e77707ef71c426f97832c2c7a1a8d3165c81e94e56f6cdfe8","observation_id":"e8c8bfc1-7a6c-451d-bbe0-f708258c44f2","resolution":{"observed_at":"2026-08-10T21:28:24.497084Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.517736Z","title":"Synthetic multi-line kymographic analysis: A spatiotem- poral data reduction technique for high-speed videoen- doscopy,","venue":null,"work_id":null,"year":2016},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":9,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.517736Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:b2a5b9ea56b3ba85c28db9970321273b327be1a74f333fd488f8c9e57e564f39","observation_id":"f2346fb3-e263-42c4-97ff-7a11c658b185","resolution":{"observed_at":"2026-08-10T21:28:24.517736Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.529141Z","title":"Irregular vocal- fold vibration—High-speed observation and modeling,","venue":null,"work_id":null,"year":2000},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":10,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.529141Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:8cb7c77d89c19d8e60c1231c5adf7080cc251f5e19539d1763d9893fdf3686b0","observation_id":"3a320399-08cc-4019-b66f-62110e748855","resolution":{"observed_at":"2026-08-10T21:28:24.529141Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.535125Z","title":"Spatio-temporal analysis of irregular vocal fold oscil- lations: Biphonation due to desynchronization of spatial modes,","venue":null,"work_id":null,"year":2001},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":11,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.535125Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:bd0ab68e2572256eb66d692707f73ebfe8ca669cdc4c09e9dbc526d76d0ed895","observation_id":"abff9999-a71d-422d-9c5e-d89e0bf57d33","resolution":{"observed_at":"2026-08-10T21:28:24.535125Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:26.275081Z","title":"Simulation of multiple source vocalization in the larynx: How true folds, false folds, and aryepiglottic folds may interact,","venue":null,"work_id":"57d61273-5ad5-40a6-a166-8f9b25376f57","year":2024},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":12,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.542778Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:1cf776235d0e58932c817c9f7f0f237c70ec280d58ebe5c736b83ce36754bb65","observation_id":"141e0582-b57d-4d41-9a55-c61c1a1e197e","resolution":{"observed_at":"2026-08-10T21:28:26.280935Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:26.255310Z","title":"Multi-Dimensional V oice Program (MDVP) Model 5105 Software Instruction Manual,","venue":null,"work_id":"8ed6fef9-91b1-423a-be9c-8e714f342ce7","year":2008},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":13,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.549569Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:aeb762a85d414fcc9f0feace0120eb869ad835e35008ac472294db9a0f6ec509","observation_id":"cf801853-a63c-4ef1-9357-d57c0c33b055","resolution":{"observed_at":"2026-08-10T21:28:26.261477Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:26.232420Z","title":"On the nature of vocal fry,","venue":null,"work_id":"ddc437c8-903a-4a71-a3ce-b9e33bbfe8bb","year":1966},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":14,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.556221Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:10465bcc507d38f210f482f1dc7f99174aa258a9dab97f0e5ac940deb91f5e6a","observation_id":"002416c6-ca96-408f-b28a-c055de2a7790","resolution":{"observed_at":"2026-08-10T21:28:26.241585Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.561562Z","title":"Freddie Mercury—acoustic analysis of speaking fundamental frequency, vibrato, and subhar- monics,","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":15,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.561562Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:ab31a0dbaaae7e7712d9a8638e14902a9f0d42fc5b6853ab4060194f692c650b","observation_id":"b76f8ad5-b273-4753-9a6b-21cd8d20ffb2","resolution":{"observed_at":"2026-08-10T21:28:24.561562Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:26.029289Z","title":"Pitch period determination of aperiodic speech signals,","venue":null,"work_id":"5cb6e25d-27be-481c-a333-27d77df1ad3d","year":1990},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":16,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.568676Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:ac665df2621e02518e3bbc041c841144eca2efdf19caa040668ce2c38326e4c3","observation_id":"afd69bc4-366b-4c42-a615-c6c7514c1e22","resolution":{"observed_at":"2026-08-10T21:28:26.152293Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.575029Z","title":"A pitch determination algorithm based on subharmonic-to-harmonic ratio,","venue":null,"work_id":null,"year":2000},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":17,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.575029Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:2a27f35066f89e6abc9a8de4ab856765e932c6dea1e80ffa8755a45798721eca","observation_id":"69e161c1-3716-43f0-b9e3-5b3c3a731738","resolution":{"observed_at":"2026-08-10T21:28:24.575029Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.580902Z","title":"Acoustic tracking of pitch, modal, and subhar- monic vibrations of vocal folds in Parkinson’s Disease and Parkinsonism,","venue":null,"work_id":null,"year":2019},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":18,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.580902Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:1001804ddc0504603597d3489410b19b975072efd3773ace230823417c64c1e4","observation_id":"b97245a2-c4da-484d-8006-5f61092e3e11","resolution":{"observed_at":"2026-08-10T21:28:24.580902Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.960499Z","title":"Poincaré pitch marks,","venue":null,"work_id":"93dc2430-43ee-47e1-bd7a-fa0e6d257a75","year":2006},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":19,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.586560Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:e82408c09035966db6949e45002a91ae01ec7ae275dc6f784a44a71bbfafa536","observation_id":"eb8624ca-af29-421b-a16c-ec4e3df0334d","resolution":{"observed_at":"2026-08-10T21:28:25.970916Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.918484Z","title":"Measurement of fundamental frequencies in diplophonic voices,","venue":null,"work_id":"8741211d-5fbb-4da8-8f9e-73fffecd15b6","year":2015},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":20,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.593496Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:82a1b3958e8a8bb66fbc10a79f71664425be1c444970469fa29b1dbc8d5d7d37","observation_id":"05c205f9-b389-46c1-af2d-81fbad503d20","resolution":{"observed_at":"2026-08-10T21:28:25.942476Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.600891Z","title":"Fundamental frequency tracking in diplophonic voices,","venue":null,"work_id":null,"year":2017},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":21,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.600891Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:0a4f3f635dab9adc0e024e5eb9d0b39f9516d39394f4bd458af73df30b9796dd","observation_id":"68594eac-c148-45cf-b543-8d486d3fb57d","resolution":{"observed_at":"2026-08-10T21:28:24.600891Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.623482Z","title":"Tracking of mul- tiple fundamental frequencies in diplophonic voices,","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":22,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.623482Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:1074f2cad49ef09f293c6d4cf845130c3f95944328589e97b35f65d75fe80c21","observation_id":"ae79585d-86db-4549-b905-92535255451a","resolution":{"observed_at":"2026-08-10T21:28:24.623482Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.714744Z","title":"Comparative per- formance of pitch detection algorithms on dysphonic voices,","venue":null,"work_id":"54839163-9709-4b3a-8448-426875f9c457","year":1982},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":23,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.692128Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:ecf0e1dcb5d2e6da585d9e78f72d4d2f3c46aa1c244ec1a8ae4982d900b2234f","observation_id":"61d878a4-a086-4a78-962f-22e0c5351027","resolution":{"observed_at":"2026-08-10T21:28:25.777596Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.696407Z","title":"A comparison of high precision FO extraction algorithms for sustained vowels,","venue":null,"work_id":"d2a2f1d5-78c7-4a7c-8855-1f08915267a7","year":1999},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":24,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.733709Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:7aee7e81f24edcaec63e4c1ef992c1a9348dc7955dc9ae5387013fe8ee275b11","observation_id":"f35ff5d4-af44-4c79-8907-36624767e288","resolution":{"observed_at":"2026-08-10T21:28:25.702457Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.675169Z","title":"Evaluation of performance of several established pitch detection algorithms in pathological voices,","venue":null,"work_id":"b291f343-5e72-4f1d-bbe9-283ae1bb3e51","year":2007},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":25,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.754756Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:4585025ba7530bbd79daaaf47e6ab344a6f180a5b223aeca61774e28a09d1438","observation_id":"0146e063-264c-4102-91b0-608578682b90","resolution":{"observed_at":"2026-08-10T21:28:25.683318Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.651538Z","title":"Robust fundamental frequency es- timation in sustained vowels: Detailed algorithmic com- parisons and information fusion with adaptive Kalman filtering,","venue":null,"work_id":"4f55c874-6f1b-4e2f-9c2f-71fc732ce96b","year":2014},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":26,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.761765Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:9f89b13d57bed833f038b1b51b13402382419fcbfdb7652e7c7050046c7ff6cb","observation_id":"b8d7ce2b-aa55-4192-b8bd-9a90b35190f8","resolution":{"observed_at":"2026-08-10T21:28:25.659511Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.626378Z","title":"Performance analysis of various fundamental frequency estimation algorithms in the context of pathological speech,","venue":null,"work_id":"52b3472b-16e0-489c-ad1f-7cd93d43338d","year":2022},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":27,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.767436Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:40eba157b1ab1aa0214809730eb9bcc2e86b3fdbe7093685ec30cb003b7107f3","observation_id":"06dd0125-f5e3-40ea-9a34-9c2517b83dd4","resolution":{"observed_at":"2026-08-10T21:28:25.632331Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.772935Z","title":"An analysis of the diplo- phonia phenomenon,","venue":null,"work_id":null,"year":1983},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":28,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.772935Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:beb8271102029ae817ec8456bd9a1c4b294f595f57a330f1a8ac60317f46da95","observation_id":"c232d87d-2e03-40de-b12a-aaf85f7a98f1","resolution":{"observed_at":"2026-08-10T21:28:24.772935Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:24.778624Z","title":"Disordered V oice Database and Program [Model 4337],","venue":null,"work_id":null,"year":2006},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":29,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.778624Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:b42e184ce3aaf16e3921a0217e6e07cc06d6bc421351ee7ef8ef211b54bf9557","observation_id":"4a5efad1-4caf-464d-a7cf-f04edc654eae","resolution":{"observed_at":"2026-08-10T21:28:24.778624Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.576337Z","title":"Harmonics-to-noise ratio estimation with deterministically time-varying harmonic model for patho- logical voice signals,","venue":null,"work_id":"a4ba8ed6-aa76-4e3a-9a1b-892efde9145a","year":2022},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":30,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.785343Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:e8864ca0901775dc57b5e3a53d30eec810c5fc729fb712365616430021485bcd","observation_id":"8ad17261-1e06-45fb-92c8-3e28285f16c7","resolution":{"observed_at":"2026-08-10T21:28:25.581923Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.548421Z","title":null,"venue":null,"work_id":"994f2854-3e7e-4513-af06-8a35d1ece583","year":2000},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":31,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.790706Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:2e681bb9e5272814b0be7bd54a899e2d00ab02696a1f97da9c5b7956262546c1","observation_id":"cc774ca8-161b-4893-b9ae-8a4668ceadb3","resolution":{"observed_at":"2026-08-10T21:28:25.555196Z","resolver_source":"raw_fallback","status":"unresolved"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.377882Z","title":"Accurate short-term analysis of the funda- mental frequency and the harmonics-to-noise ratio of a sampled sound,","venue":null,"work_id":"9f7aac21-544e-4252-b4f7-37d3c277043e","year":1993},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":32,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.797168Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:1d193b951acec53c96d8114918b91f30f2c47be40ebd2bce17f9ca0dff703f50","observation_id":"04fa984c-7405-40b0-8a95-90ab7f0146c9","resolution":{"observed_at":"2026-08-10T21:28:25.437215Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.354986Z","title":"Harvest: A high-performance fundamental frequency estimator from speech signals,","venue":null,"work_id":"2292f840-c021-4137-9980-00aff504591c","year":null},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":33,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.844348Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:1fd803faebc2d0d089ddedddfe0fd4601b15ebe037f8e70a29c43af39ecf98fe","observation_id":"2e46efcb-a694-4881-8191-9da302627487","resolution":{"observed_at":"2026-08-10T21:28:25.362935Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.301313Z","title":"A spectral/temporal method for robust fundamental frequency tracking,","venue":null,"work_id":"b425b2a6-dd6a-465b-b542-df249fe7338e","year":2008},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":34,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:25.001873Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:068d9f41345d5c634ac037d550e6c1acb90aeb5a873092b380ab4e1efa4af203","observation_id":"b53bf8bb-cdf0-4253-9887-10587748882a","resolution":{"observed_at":"2026-08-10T21:28:25.307458Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.007896Z","title":"Crepe: A convolutional representation for pitch estimation,","venue":null,"work_id":null,"year":2018},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":35,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:25.007896Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:c6c36da1a44158496d03434b4a3205d20728fe5ab9261c4cd8e4d74a018baef5","observation_id":"fb15195c-ce76-482d-95bb-e1bf7e0916f8","resolution":{"observed_at":"2026-08-10T21:28:25.007896Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.258480Z","title":"Fully-convolutional net- work for pitch estimation of speech signals,","venue":null,"work_id":"e9a7b053-4245-4f7b-9d01-feb56e5d0ac9","year":2019},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":36,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:25.014988Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:99eaeb399e9a6a7675715317bdb364aa76492c4bed7aa6baead17ad3ae6f92e9","observation_id":"c6f73087-fdba-4561-93a1-2fcaa1f8d0da","resolution":{"observed_at":"2026-08-10T21:28:25.266273Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.232269Z","title":"Nearly defect-free F0 trajectory extraction for expressive speech modifications based on STRAIGHT,","venue":null,"work_id":"06134a83-4961-4896-9803-617c3b2b1136","year":2005},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":37,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:25.022818Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:2d195a8b337341547da8f2278bbc2d5913519f498be5cbd58dd1be403586024a","observation_id":"47ea2a14-c216-47af-ad9f-aa41ee017600","resolution":{"observed_at":"2026-08-10T21:28:25.238565Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.206309Z","title":"Error bounds for convolutional codes and an asymptotically optimum decoding algorithm,","venue":null,"work_id":"2a97430d-62c3-4607-9040-af1fe6ac474a","year":1967},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":38,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:25.032738Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:1b6106fd4694864bd79cde21ea45cf07c3259bb8b92338600d7e8c331973f7f0","observation_id":"535f82fa-86b1-4b9e-811a-e9442f03d678","resolution":{"observed_at":"2026-08-10T21:28:25.216140Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.169013Z","title":"Introducing Parselmouth: A Python interface to Praat,","venue":null,"work_id":"4b45a04d-44c4-46aa-a048-cd39d9162bd4","year":2018},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":39,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:25.038960Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:d5347fd61cda7caa801623a6b979cd53ae16363a2b831ad00d4a373dcd6017e2","observation_id":"ac67f00f-81d7-4af8-84dc-e0ce95ca6bd1","resolution":{"observed_at":"2026-08-10T21:28:25.185893Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.132550Z","title":"WORLD: A vocoder-based high-quality speech synthesis system for real-time applications,","venue":null,"work_id":"fd08fe3d-bb4f-4675-b3d4-341a9c5794b4","year":2016},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":40,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:25.044807Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:7fffee46f8965d4a1419ddd009e613c9fe295e31128f7a6884441c6b6f9a9baf","observation_id":"ffe29e8a-5129-4ce2-b268-1b82639870d3","resolution":{"observed_at":"2026-08-10T21:28:25.142519Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.050543Z","title":"Performance evaluation of subharmonic- to-harmonic ratio (SHR) computation,","venue":null,"work_id":null,"year":2021},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":41,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:25.050543Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:013f970539425854aa88a4979c0e535b4a01fce0c65b1b396d7c02a2372f380b","observation_id":"5efeb23e-86be-4706-884e-a36bd4efb007","resolution":{"observed_at":"2026-08-10T21:28:25.050543Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":null,"pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.056576Z","title":"Perception of pitch and roughness in vocal signals with subharmonics,","venue":null,"work_id":null,"year":2001},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":42,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:25.056576Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:f4ad6d3802811487883bac04e8d46229820689278989436032ea25fa6780be95","observation_id":"a9e04b4c-d1cd-4ba9-856c-3c01c3c86663","resolution":{"observed_at":"2026-08-10T21:28:25.056576Z","resolver_source":null,"status":"unresolved"},"standing_notice":{"events":[],"reason":"canonical_work_link_unavailable","source_receipts":[],"state":"unavailable"}},{"citation":{"cited_paper":null,"cited_work":{"arxiv_id":null,"doi":null,"metadata_source":"raw_reference","pith_arxiv_id":null,"snapshot_observed_at":"2026-08-10T21:28:25.327277Z","title":"2017, pp","venue":null,"work_id":"cd0447b1-7777-4d19-a691-f3ee5b674cb1","year":2017},"citing_paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals","version":1},"reference_index":2017,"source":"pdf_text","source_observed_at":"2026-08-10T21:28:24.919460Z"},"links":{"citing_paper":"/paper/2501.04789"},"observation_digest":"sha256:61ea0674aa342dbc715e3e55f7ffeda5981625e33b50bd536598bed7b7c29f26","observation_id":"9b7c98c2-014f-48aa-a154-3b30bcbce17b","resolution":{"observed_at":"2026-08-10T21:28:25.340169Z","resolver_source":"raw_fallback","status":"verified_fuzzy"},"standing_notice":{"events":[],"observation":"No event found in the named queried sources as of 2026-08-21T06:32:19.484+00:00.","reason":null,"source_receipts":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"state":"measured"}}],"paper":{"arxiv_id":"2501.04789","last_updated":"2025-01-08T19:11:51Z","latest_version":1,"primary_category":"eess.AS","snapshot_observed_at":"2026-08-21T05:37:31.641516Z","submitted_at":"2025-01-08T19:11:51Z","title":"Comparison of fundamental frequency estimators with subharmonic voice signals"},"reference_resolution":{"displayed":43,"state_counts":{"malformed_identifier":0,"metadata_mismatch":0,"parse_uncertain":0,"unresolved":19,"verified_exact":0,"verified_fuzzy":24},"total_outbound_references":43},"refusal":"A citation records a reference. It does not transfer a finding from one paper to another.","schema":"pith.paper-citation-record.v1","standing_sources":[{"observed_at":"2026-08-21T06:32:19.484+00:00","source":"crossref"},{"observed_at":"2026-08-21T06:32:16.066871+00:00","source":"retraction_watch"}],"thesis":"As of 21 August 2026, this Paper Citation Record lists 43 of 43 outbound references and 1 inbound Pith citation observation for arXiv:2501.04789."}