{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:4SCMZLSNLNPBQ46YLGJB7AAOMW","short_pith_number":"pith:4SCMZLSN","schema_version":"1.0","canonical_sha256":"e484ccae4d5b5e1873d859921f800e65b550e38b0c1582eb0f8e02363451cde6","source":{"kind":"arxiv","id":"1809.10936","version":3},"attestation_state":"computed","paper":{"title":"Online Localization and Tracking of Multiple Moving Speakers in Reverberant Environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.AS"],"primary_cat":"cs.SD","authors_text":"Laurent Girin, Radu Horaud, Xavier Alameda-Pineda, Xiaofei Li, Yutong Ban","submitted_at":"2018-09-28T09:54:26Z","abstract_excerpt":"We address the problem of online localization and tracking of multiple moving speakers in reverberant environments. The paper has the following contributions. We use the direct-path relative transfer function (DP-RTF), an inter-channel feature that encodes acoustic information robust against reverberation, and we propose an online algorithm well suited for estimating DP-RTFs associated with moving audio sources. Another crucial ingredient of the proposed method is its ability to properly assign DP-RTFs to audio-source directions. Towards this goal, we adopt a maximum-likelihood formulation and"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1809.10936","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2018-09-28T09:54:26Z","cross_cats_sorted":["eess.AS"],"title_canon_sha256":"30dee2ac42ced6b7d2df260755a0f26002a84abb3644dfb9080feb54194bd3af","abstract_canon_sha256":"a5abf80341a82543840a7348821f0f506192f989a74858aceefd9bb82b7a08d9"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:48:55.346969Z","signature_b64":"zydugWxlzdPR/T0VVIzA5tbLbLveu6k+47Rk6JzftVns1U8tA/zMBRnggJVnBmufl9pGG/ngGTJSBF7h+RFXBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e484ccae4d5b5e1873d859921f800e65b550e38b0c1582eb0f8e02363451cde6","last_reissued_at":"2026-05-17T23:48:55.346231Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:48:55.346231Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Online Localization and Tracking of Multiple Moving Speakers in Reverberant Environments","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.AS"],"primary_cat":"cs.SD","authors_text":"Laurent Girin, Radu Horaud, Xavier Alameda-Pineda, Xiaofei Li, Yutong Ban","submitted_at":"2018-09-28T09:54:26Z","abstract_excerpt":"We address the problem of online localization and tracking of multiple moving speakers in reverberant environments. The paper has the following contributions. We use the direct-path relative transfer function (DP-RTF), an inter-channel feature that encodes acoustic information robust against reverberation, and we propose an online algorithm well suited for estimating DP-RTFs associated with moving audio sources. Another crucial ingredient of the proposed method is its ability to properly assign DP-RTFs to audio-source directions. Towards this goal, we adopt a maximum-likelihood formulation and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1809.10936","kind":"arxiv","version":3},"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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1809.10936","created_at":"2026-05-17T23:48:55.346365+00:00"},{"alias_kind":"arxiv_version","alias_value":"1809.10936v3","created_at":"2026-05-17T23:48:55.346365+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1809.10936","created_at":"2026-05-17T23:48:55.346365+00:00"},{"alias_kind":"pith_short_12","alias_value":"4SCMZLSNLNPB","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_16","alias_value":"4SCMZLSNLNPBQ46Y","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_8","alias_value":"4SCMZLSN","created_at":"2026-05-18T12:32:05.422762+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/4SCMZLSNLNPBQ46YLGJB7AAOMW","json":"https://pith.science/pith/4SCMZLSNLNPBQ46YLGJB7AAOMW.json","graph_json":"https://pith.science/api/pith-number/4SCMZLSNLNPBQ46YLGJB7AAOMW/graph.json","events_json":"https://pith.science/api/pith-number/4SCMZLSNLNPBQ46YLGJB7AAOMW/events.json","paper":"https://pith.science/paper/4SCMZLSN"},"agent_actions":{"view_html":"https://pith.science/pith/4SCMZLSNLNPBQ46YLGJB7AAOMW","download_json":"https://pith.science/pith/4SCMZLSNLNPBQ46YLGJB7AAOMW.json","view_paper":"https://pith.science/paper/4SCMZLSN","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1809.10936&json=true","fetch_graph":"https://pith.science/api/pith-number/4SCMZLSNLNPBQ46YLGJB7AAOMW/graph.json","fetch_events":"https://pith.science/api/pith-number/4SCMZLSNLNPBQ46YLGJB7AAOMW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4SCMZLSNLNPBQ46YLGJB7AAOMW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4SCMZLSNLNPBQ46YLGJB7AAOMW/action/storage_attestation","attest_author":"https://pith.science/pith/4SCMZLSNLNPBQ46YLGJB7AAOMW/action/author_attestation","sign_citation":"https://pith.science/pith/4SCMZLSNLNPBQ46YLGJB7AAOMW/action/citation_signature","submit_replication":"https://pith.science/pith/4SCMZLSNLNPBQ46YLGJB7AAOMW/action/replication_record"}},"created_at":"2026-05-17T23:48:55.346365+00:00","updated_at":"2026-05-17T23:48:55.346365+00:00"}