{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:F5QL7BHYABAALPBEFCS7AYARU2","short_pith_number":"pith:F5QL7BHY","schema_version":"1.0","canonical_sha256":"2f60bf84f8004005bc2428a5f06011a6b5f94fcb413e9a77436177db514ba3f4","source":{"kind":"arxiv","id":"1803.00187","version":1},"attestation_state":"computed","paper":{"title":"Mode Domain Spatial Active Noise Control Using Sparse Signal Representation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.AS","eess.SP"],"primary_cat":"cs.SD","authors_text":"Thushara D. Abhayapala, Yuki Mitsufuji, Yu Maeno","submitted_at":"2018-03-01T03:12:15Z","abstract_excerpt":"Active noise control (ANC) over a sizeable space requires a large number of reference and error microphones to satisfy the spatial Nyquist sampling criterion, which limits the feasibility of practical realization of such systems. This paper proposes a mode-domain feedforward ANC method to attenuate the noise field over a large space while reducing the number of microphones required. We adopt a sparse reference signal representation to precisely calculate the reference mode coefficients. The proposed system consists of circular reference and error microphone arrays, which capture the reference "},"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":"1803.00187","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2018-03-01T03:12:15Z","cross_cats_sorted":["eess.AS","eess.SP"],"title_canon_sha256":"e3e13098543a7a2c80720a227422bcf283a74b631128532e6631a27a51af2288","abstract_canon_sha256":"2c56fbf90a553fb980d656676407c8f45bdaa8c775dde02f56827e179dcf29a4"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:22:13.083626Z","signature_b64":"4ixCwMl3ZsDIag2K0vALvEPAnVhSCVL9pTpJinln7DndTC/GvnLkoCD4wSac1wLfF3EqT+17M74fW6pPKDSpAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2f60bf84f8004005bc2428a5f06011a6b5f94fcb413e9a77436177db514ba3f4","last_reissued_at":"2026-05-18T00:22:13.082724Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:22:13.082724Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Mode Domain Spatial Active Noise Control Using Sparse Signal Representation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["eess.AS","eess.SP"],"primary_cat":"cs.SD","authors_text":"Thushara D. Abhayapala, Yuki Mitsufuji, Yu Maeno","submitted_at":"2018-03-01T03:12:15Z","abstract_excerpt":"Active noise control (ANC) over a sizeable space requires a large number of reference and error microphones to satisfy the spatial Nyquist sampling criterion, which limits the feasibility of practical realization of such systems. This paper proposes a mode-domain feedforward ANC method to attenuate the noise field over a large space while reducing the number of microphones required. We adopt a sparse reference signal representation to precisely calculate the reference mode coefficients. The proposed system consists of circular reference and error microphone arrays, which capture the reference "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.00187","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1803.00187","created_at":"2026-05-18T00:22:13.082844+00:00"},{"alias_kind":"arxiv_version","alias_value":"1803.00187v1","created_at":"2026-05-18T00:22:13.082844+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.00187","created_at":"2026-05-18T00:22:13.082844+00:00"},{"alias_kind":"pith_short_12","alias_value":"F5QL7BHYABAA","created_at":"2026-05-18T12:32:22.470017+00:00"},{"alias_kind":"pith_short_16","alias_value":"F5QL7BHYABAALPBE","created_at":"2026-05-18T12:32:22.470017+00:00"},{"alias_kind":"pith_short_8","alias_value":"F5QL7BHY","created_at":"2026-05-18T12:32:22.470017+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/F5QL7BHYABAALPBEFCS7AYARU2","json":"https://pith.science/pith/F5QL7BHYABAALPBEFCS7AYARU2.json","graph_json":"https://pith.science/api/pith-number/F5QL7BHYABAALPBEFCS7AYARU2/graph.json","events_json":"https://pith.science/api/pith-number/F5QL7BHYABAALPBEFCS7AYARU2/events.json","paper":"https://pith.science/paper/F5QL7BHY"},"agent_actions":{"view_html":"https://pith.science/pith/F5QL7BHYABAALPBEFCS7AYARU2","download_json":"https://pith.science/pith/F5QL7BHYABAALPBEFCS7AYARU2.json","view_paper":"https://pith.science/paper/F5QL7BHY","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1803.00187&json=true","fetch_graph":"https://pith.science/api/pith-number/F5QL7BHYABAALPBEFCS7AYARU2/graph.json","fetch_events":"https://pith.science/api/pith-number/F5QL7BHYABAALPBEFCS7AYARU2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/F5QL7BHYABAALPBEFCS7AYARU2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/F5QL7BHYABAALPBEFCS7AYARU2/action/storage_attestation","attest_author":"https://pith.science/pith/F5QL7BHYABAALPBEFCS7AYARU2/action/author_attestation","sign_citation":"https://pith.science/pith/F5QL7BHYABAALPBEFCS7AYARU2/action/citation_signature","submit_replication":"https://pith.science/pith/F5QL7BHYABAALPBEFCS7AYARU2/action/replication_record"}},"created_at":"2026-05-18T00:22:13.082844+00:00","updated_at":"2026-05-18T00:22:13.082844+00:00"}