{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:MV5I6OJ223OF4Q33YSIQKUWJYH","short_pith_number":"pith:MV5I6OJ2","canonical_record":{"source":{"id":"1410.6903","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2014-10-25T09:40:46Z","cross_cats_sorted":["cs.CL"],"title_canon_sha256":"8c459728ed9e4363602368416c4d1edc364c5c68710c2f4e86d9a60174fca31f","abstract_canon_sha256":"35bb0cbc2516f0f58a90d81c4aef53781568953b368fc0d240daff15bac92ec7"},"schema_version":"1.0"},"canonical_sha256":"657a8f393ad6dc5e437bc4910552c9c1e2c8d0337ce0ad054d9113da117b8cb6","source":{"kind":"arxiv","id":"1410.6903","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.6903","created_at":"2026-05-18T02:39:18Z"},{"alias_kind":"arxiv_version","alias_value":"1410.6903v1","created_at":"2026-05-18T02:39:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.6903","created_at":"2026-05-18T02:39:18Z"},{"alias_kind":"pith_short_12","alias_value":"MV5I6OJ223OF","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MV5I6OJ223OF4Q33","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MV5I6OJ2","created_at":"2026-05-18T12:28:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:MV5I6OJ223OF4Q33YSIQKUWJYH","target":"record","payload":{"canonical_record":{"source":{"id":"1410.6903","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2014-10-25T09:40:46Z","cross_cats_sorted":["cs.CL"],"title_canon_sha256":"8c459728ed9e4363602368416c4d1edc364c5c68710c2f4e86d9a60174fca31f","abstract_canon_sha256":"35bb0cbc2516f0f58a90d81c4aef53781568953b368fc0d240daff15bac92ec7"},"schema_version":"1.0"},"canonical_sha256":"657a8f393ad6dc5e437bc4910552c9c1e2c8d0337ce0ad054d9113da117b8cb6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:39:18.360426Z","signature_b64":"WyzzTOHDylTVzc76JA9vNMEaewIdz9Dr9UkCi5fcCX50QtpU2IMgvP7+8X0RXSvqO9Xy/qVmuFXZ+ZeQRDkHCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"657a8f393ad6dc5e437bc4910552c9c1e2c8d0337ce0ad054d9113da117b8cb6","last_reissued_at":"2026-05-18T02:39:18.360032Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:39:18.360032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1410.6903","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":"2026-05-18T02:39:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LRvlVEVHb6IvPfvqxLsEi2sGRn0NRWwed2VSCVlg02Twjt4uNcwblC/7O23+pGIiU44bhMjrwjjLIQlFbLeCCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T20:15:25.968123Z"},"content_sha256":"c19f64ccd68e69dbf88612dd8021d6bc42c0d423d172e73880cdcdd525be7d17","schema_version":"1.0","event_id":"sha256:c19f64ccd68e69dbf88612dd8021d6bc42c0d423d172e73880cdcdd525be7d17"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:MV5I6OJ223OF4Q33YSIQKUWJYH","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Choice of Mel Filter Bank in Computing MFCC of a Resampled Speech","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.CL"],"primary_cat":"cs.SD","authors_text":"Laxmi Narayana M., Sunil Kumar Kopparapu","submitted_at":"2014-10-25T09:40:46Z","abstract_excerpt":"Mel Frequency Cepstral Coefficients (MFCCs) are the most popularly used speech features in most speech and speaker recognition applications. In this paper, we study the effect of resampling a speech signal on these speech features. We first derive a relationship between the MFCC param- eters of the resampled speech and the MFCC parameters of the original speech. We propose six methods of calculating the MFCC parameters of downsampled speech by transforming the Mel filter bank used to com- pute MFCC of the original speech. We then experimentally compute the MFCC parameters of the down sampled s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.6903","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":""},"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":"2026-05-18T02:39:18Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3bZ5WMuN2K74XMaDTf7cGBzXJCUGEkf1WFDozZ+6yYSNnqf4QOeFrXfrE9sxDQCFzIaTs+OSQ4gisrfPczKeCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T20:15:25.968766Z"},"content_sha256":"fa915cde3fe4675aa8c65a4f9336d52a1509819912fb57ccd1a4a65810e7dbea","schema_version":"1.0","event_id":"sha256:fa915cde3fe4675aa8c65a4f9336d52a1509819912fb57ccd1a4a65810e7dbea"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/MV5I6OJ223OF4Q33YSIQKUWJYH/bundle.json","state_url":"https://pith.science/pith/MV5I6OJ223OF4Q33YSIQKUWJYH/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/MV5I6OJ223OF4Q33YSIQKUWJYH/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":"2026-06-11T20:15:25Z","links":{"resolver":"https://pith.science/pith/MV5I6OJ223OF4Q33YSIQKUWJYH","bundle":"https://pith.science/pith/MV5I6OJ223OF4Q33YSIQKUWJYH/bundle.json","state":"https://pith.science/pith/MV5I6OJ223OF4Q33YSIQKUWJYH/state.json","well_known_bundle":"https://pith.science/.well-known/pith/MV5I6OJ223OF4Q33YSIQKUWJYH/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:MV5I6OJ223OF4Q33YSIQKUWJYH","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":"35bb0cbc2516f0f58a90d81c4aef53781568953b368fc0d240daff15bac92ec7","cross_cats_sorted":["cs.CL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2014-10-25T09:40:46Z","title_canon_sha256":"8c459728ed9e4363602368416c4d1edc364c5c68710c2f4e86d9a60174fca31f"},"schema_version":"1.0","source":{"id":"1410.6903","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1410.6903","created_at":"2026-05-18T02:39:18Z"},{"alias_kind":"arxiv_version","alias_value":"1410.6903v1","created_at":"2026-05-18T02:39:18Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1410.6903","created_at":"2026-05-18T02:39:18Z"},{"alias_kind":"pith_short_12","alias_value":"MV5I6OJ223OF","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"MV5I6OJ223OF4Q33","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"MV5I6OJ2","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:fa915cde3fe4675aa8c65a4f9336d52a1509819912fb57ccd1a4a65810e7dbea","target":"graph","created_at":"2026-05-18T02:39:18Z","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"},"paper":{"abstract_excerpt":"Mel Frequency Cepstral Coefficients (MFCCs) are the most popularly used speech features in most speech and speaker recognition applications. In this paper, we study the effect of resampling a speech signal on these speech features. We first derive a relationship between the MFCC param- eters of the resampled speech and the MFCC parameters of the original speech. We propose six methods of calculating the MFCC parameters of downsampled speech by transforming the Mel filter bank used to com- pute MFCC of the original speech. We then experimentally compute the MFCC parameters of the down sampled s","authors_text":"Laxmi Narayana M., Sunil Kumar Kopparapu","cross_cats":["cs.CL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2014-10-25T09:40:46Z","title":"Choice of Mel Filter Bank in Computing MFCC of a Resampled Speech"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1410.6903","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:c19f64ccd68e69dbf88612dd8021d6bc42c0d423d172e73880cdcdd525be7d17","target":"record","created_at":"2026-05-18T02:39:18Z","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":"35bb0cbc2516f0f58a90d81c4aef53781568953b368fc0d240daff15bac92ec7","cross_cats_sorted":["cs.CL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2014-10-25T09:40:46Z","title_canon_sha256":"8c459728ed9e4363602368416c4d1edc364c5c68710c2f4e86d9a60174fca31f"},"schema_version":"1.0","source":{"id":"1410.6903","kind":"arxiv","version":1}},"canonical_sha256":"657a8f393ad6dc5e437bc4910552c9c1e2c8d0337ce0ad054d9113da117b8cb6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"657a8f393ad6dc5e437bc4910552c9c1e2c8d0337ce0ad054d9113da117b8cb6","first_computed_at":"2026-05-18T02:39:18.360032Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:39:18.360032Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WyzzTOHDylTVzc76JA9vNMEaewIdz9Dr9UkCi5fcCX50QtpU2IMgvP7+8X0RXSvqO9Xy/qVmuFXZ+ZeQRDkHCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:39:18.360426Z","signed_message":"canonical_sha256_bytes"},"source_id":"1410.6903","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c19f64ccd68e69dbf88612dd8021d6bc42c0d423d172e73880cdcdd525be7d17","sha256:fa915cde3fe4675aa8c65a4f9336d52a1509819912fb57ccd1a4a65810e7dbea"],"state_sha256":"fffe482e5d4623b0be186034a3b00b655442848b9a96abfb7d9f0dd18d89f146"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Nbd/hyR0pYRGbOubVyH573xo58HbhHKFJrdRksDivLOzd6gC8wqn26sk/YhSwObdmXsOhjdLhc9p51v+rx9lDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T20:15:25.971876Z","bundle_sha256":"bb726487a452c60a9b32142dc08c25c4e57d9cdf73e12593bc766b28ea370310"}}