{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:LPIOVKNMTBPJHVA3WWPFDYTDST","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":"ab997fa2dbad09041663435a68be2da4db8e1002ff5026ef7b21f3e1f0bead66","cross_cats_sorted":["cs.CL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2014-05-05T14:37:47Z","title_canon_sha256":"acfb6db3523547960bb22a184c9d2767ddb7e380737d929f3d468df72f520f5a"},"schema_version":"1.0","source":{"id":"1405.1379","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.1379","created_at":"2026-05-18T02:52:32Z"},{"alias_kind":"arxiv_version","alias_value":"1405.1379v1","created_at":"2026-05-18T02:52:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.1379","created_at":"2026-05-18T02:52:32Z"},{"alias_kind":"pith_short_12","alias_value":"LPIOVKNMTBPJ","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_16","alias_value":"LPIOVKNMTBPJHVA3","created_at":"2026-05-18T12:28:38Z"},{"alias_kind":"pith_short_8","alias_value":"LPIOVKNM","created_at":"2026-05-18T12:28:38Z"}],"graph_snapshots":[{"event_id":"sha256:3053d97bb2950af97b1b8c22902a1668dc3c82842af675ee9d5d8ae8ccb46287","target":"graph","created_at":"2026-05-18T02:52:32Z","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":"This paper addresses the challenging scenario for the distant-talking control of a music playback device, a common portable speaker with four small loudspeakers in close proximity to one microphone. The user controls the device through voice, where the speech-to-music ratio can be as low as -30 dB during music playback. We propose a speech enhancement front-end that relies on known robust methods for echo cancellation, double-talk detection, and noise suppression, as well as a novel adaptive quasi-binary mask that is well suited for speech recognition. The optimization of the system is then fo","authors_text":"Daniele Giacobello, Jason Wung, Joshua Atkins, Ramin Pichevar","cross_cats":["cs.CL"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2014-05-05T14:37:47Z","title":"Design and Optimization of a Speech Recognition Front-End for Distant-Talking Control of a Music Playback Device"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.1379","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:d7dee262bab696ac73026b71dbe9e7f171e97578905e7313d6df415e1169fc42","target":"record","created_at":"2026-05-18T02:52:32Z","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":"ab997fa2dbad09041663435a68be2da4db8e1002ff5026ef7b21f3e1f0bead66","cross_cats_sorted":["cs.CL"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2014-05-05T14:37:47Z","title_canon_sha256":"acfb6db3523547960bb22a184c9d2767ddb7e380737d929f3d468df72f520f5a"},"schema_version":"1.0","source":{"id":"1405.1379","kind":"arxiv","version":1}},"canonical_sha256":"5bd0eaa9ac985e93d41bb59e51e26394c08efb305ccfbf8b6dba27a7b4650669","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5bd0eaa9ac985e93d41bb59e51e26394c08efb305ccfbf8b6dba27a7b4650669","first_computed_at":"2026-05-18T02:52:32.942163Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:52:32.942163Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"A4akT7KTmks3Ynud2LlblohzUjv7CSt8Lr24Ts0OJ6gzebLFx+Th3BjrxuVhilD3NJ1ZyhOzo2+ZyngNukHmAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:52:32.942589Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.1379","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d7dee262bab696ac73026b71dbe9e7f171e97578905e7313d6df415e1169fc42","sha256:3053d97bb2950af97b1b8c22902a1668dc3c82842af675ee9d5d8ae8ccb46287"],"state_sha256":"5b9e88ceac7e7e34d9e9058d8d9d14234c2a05d98e46dec993e694fcb7bfdd06"}