{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:HQ7AC3J4GOCWKC7XALQ2AESKYQ","short_pith_number":"pith:HQ7AC3J4","canonical_record":{"source":{"id":"2206.07917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2022-06-16T04:43:09Z","cross_cats_sorted":["cs.SD"],"title_canon_sha256":"4239004f0733359109017175569f222800d7f511d85ccde6421baca3218ea658","abstract_canon_sha256":"1e3310c2c4eb4b80b1ebe2f7e5e75cdc8febb1f09460ada6300c886b7fb41711"},"schema_version":"1.0"},"canonical_sha256":"3c3e016d3c3385650bf702e1a0124ac415d1e06f9069edfb972c534e0801ce6b","source":{"kind":"arxiv","id":"2206.07917","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.07917","created_at":"2026-07-05T04:32:19Z"},{"alias_kind":"arxiv_version","alias_value":"2206.07917v1","created_at":"2026-07-05T04:32:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.07917","created_at":"2026-07-05T04:32:19Z"},{"alias_kind":"pith_short_12","alias_value":"HQ7AC3J4GOCW","created_at":"2026-07-05T04:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"HQ7AC3J4GOCWKC7X","created_at":"2026-07-05T04:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"HQ7AC3J4","created_at":"2026-07-05T04:32:19Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:HQ7AC3J4GOCWKC7XALQ2AESKYQ","target":"record","payload":{"canonical_record":{"source":{"id":"2206.07917","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2022-06-16T04:43:09Z","cross_cats_sorted":["cs.SD"],"title_canon_sha256":"4239004f0733359109017175569f222800d7f511d85ccde6421baca3218ea658","abstract_canon_sha256":"1e3310c2c4eb4b80b1ebe2f7e5e75cdc8febb1f09460ada6300c886b7fb41711"},"schema_version":"1.0"},"canonical_sha256":"3c3e016d3c3385650bf702e1a0124ac415d1e06f9069edfb972c534e0801ce6b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:32:19.949094Z","signature_b64":"5rlh9S0NTI85LHd2Xb56usV08HgRC1cjwjyJnaD5PTes/2iUJh+RV/Hmvncc/Jl5TFNEg3yQbPBEO/JxeqE1CA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3c3e016d3c3385650bf702e1a0124ac415d1e06f9069edfb972c534e0801ce6b","last_reissued_at":"2026-07-05T04:32:19.948691Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:32:19.948691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2206.07917","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:32:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ucFWT4T0d7WL/4f8/j8jrYEuY3hFefDPiP2fBzU0Eij2o96JhRxrIiIjPtsz6XXWrJpcA4dv5reTsuOENYFSCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:56:17.455443Z"},"content_sha256":"88390a58109fd9cfe4118bee03172c00efe689a4f1fe35572143113fb5a68f79","schema_version":"1.0","event_id":"sha256:88390a58109fd9cfe4118bee03172c00efe689a4f1fe35572143113fb5a68f79"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:HQ7AC3J4GOCWKC7XALQ2AESKYQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"To Dereverb Or Not to Dereverb? Perceptual Studies On Real-Time Dereverberation Targets","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SD"],"primary_cat":"eess.AS","authors_text":"Arvindh Krishnaswamy, Jean-Marc Valin, Ritwik Giri, Shrikant Venkataramani, Umut Isik","submitted_at":"2022-06-16T04:43:09Z","abstract_excerpt":"In real life, room effect, also known as room reverberation, and the present background noise degrade the quality of speech. Recently, deep learning-based speech enhancement approaches have shown a lot of promise and surpassed traditional denoising and dereverberation methods. It is also well established that these state-of-the-art denoising algorithms significantly improve the quality of speech as perceived by human listeners. But the role of dereverberation on subjective (perceived) speech quality, and whether the additional artifacts introduced by dereverberation cause more harm than good a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.07917","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2206.07917/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:32:19Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t11T/Z1MXgsnG9PkQKfgi3Qv6pZimqQXCFslFvu0UbE4P2wQQKWQH9VwgNJdTNg58BcWuq7vmkPPg1uSlTpmDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T09:56:17.455854Z"},"content_sha256":"326fe0ef3ef8d7ecfe4f1bc565a9574684bbcf8f6b41254f5e8cbea2cfe7cee0","schema_version":"1.0","event_id":"sha256:326fe0ef3ef8d7ecfe4f1bc565a9574684bbcf8f6b41254f5e8cbea2cfe7cee0"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/HQ7AC3J4GOCWKC7XALQ2AESKYQ/bundle.json","state_url":"https://pith.science/pith/HQ7AC3J4GOCWKC7XALQ2AESKYQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/HQ7AC3J4GOCWKC7XALQ2AESKYQ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-07T09:56:17Z","links":{"resolver":"https://pith.science/pith/HQ7AC3J4GOCWKC7XALQ2AESKYQ","bundle":"https://pith.science/pith/HQ7AC3J4GOCWKC7XALQ2AESKYQ/bundle.json","state":"https://pith.science/pith/HQ7AC3J4GOCWKC7XALQ2AESKYQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/HQ7AC3J4GOCWKC7XALQ2AESKYQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:HQ7AC3J4GOCWKC7XALQ2AESKYQ","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"1e3310c2c4eb4b80b1ebe2f7e5e75cdc8febb1f09460ada6300c886b7fb41711","cross_cats_sorted":["cs.SD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2022-06-16T04:43:09Z","title_canon_sha256":"4239004f0733359109017175569f222800d7f511d85ccde6421baca3218ea658"},"schema_version":"1.0","source":{"id":"2206.07917","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2206.07917","created_at":"2026-07-05T04:32:19Z"},{"alias_kind":"arxiv_version","alias_value":"2206.07917v1","created_at":"2026-07-05T04:32:19Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2206.07917","created_at":"2026-07-05T04:32:19Z"},{"alias_kind":"pith_short_12","alias_value":"HQ7AC3J4GOCW","created_at":"2026-07-05T04:32:19Z"},{"alias_kind":"pith_short_16","alias_value":"HQ7AC3J4GOCWKC7X","created_at":"2026-07-05T04:32:19Z"},{"alias_kind":"pith_short_8","alias_value":"HQ7AC3J4","created_at":"2026-07-05T04:32:19Z"}],"graph_snapshots":[{"event_id":"sha256:326fe0ef3ef8d7ecfe4f1bc565a9574684bbcf8f6b41254f5e8cbea2cfe7cee0","target":"graph","created_at":"2026-07-05T04:32:19Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2206.07917/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In real life, room effect, also known as room reverberation, and the present background noise degrade the quality of speech. Recently, deep learning-based speech enhancement approaches have shown a lot of promise and surpassed traditional denoising and dereverberation methods. It is also well established that these state-of-the-art denoising algorithms significantly improve the quality of speech as perceived by human listeners. But the role of dereverberation on subjective (perceived) speech quality, and whether the additional artifacts introduced by dereverberation cause more harm than good a","authors_text":"Arvindh Krishnaswamy, Jean-Marc Valin, Ritwik Giri, Shrikant Venkataramani, Umut Isik","cross_cats":["cs.SD"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2022-06-16T04:43:09Z","title":"To Dereverb Or Not to Dereverb? Perceptual Studies On Real-Time Dereverberation Targets"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2206.07917","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:88390a58109fd9cfe4118bee03172c00efe689a4f1fe35572143113fb5a68f79","target":"record","created_at":"2026-07-05T04:32:19Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"1e3310c2c4eb4b80b1ebe2f7e5e75cdc8febb1f09460ada6300c886b7fb41711","cross_cats_sorted":["cs.SD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2022-06-16T04:43:09Z","title_canon_sha256":"4239004f0733359109017175569f222800d7f511d85ccde6421baca3218ea658"},"schema_version":"1.0","source":{"id":"2206.07917","kind":"arxiv","version":1}},"canonical_sha256":"3c3e016d3c3385650bf702e1a0124ac415d1e06f9069edfb972c534e0801ce6b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3c3e016d3c3385650bf702e1a0124ac415d1e06f9069edfb972c534e0801ce6b","first_computed_at":"2026-07-05T04:32:19.948691Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:32:19.948691Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"5rlh9S0NTI85LHd2Xb56usV08HgRC1cjwjyJnaD5PTes/2iUJh+RV/Hmvncc/Jl5TFNEg3yQbPBEO/JxeqE1CA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:32:19.949094Z","signed_message":"canonical_sha256_bytes"},"source_id":"2206.07917","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:88390a58109fd9cfe4118bee03172c00efe689a4f1fe35572143113fb5a68f79","sha256:326fe0ef3ef8d7ecfe4f1bc565a9574684bbcf8f6b41254f5e8cbea2cfe7cee0"],"state_sha256":"cf13e3d32e8db2065a2d992141637036dff5ea0af3e3466599b1c2fd385926e6"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wtH+FO3jxbzUGuoXlFNJnl97TOwcLMLyt9qocdcfFiEi4w785wGkUwCJcIn7xLn18k2eAIkQRBH1lMwwY+XQDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T09:56:17.457912Z","bundle_sha256":"031e9505809066dce458d449e174638ba4318b1e229253118f5428a91a413194"}}