{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:IOLQ4HWM5KMZ5UDA7AQTHYVUXR","short_pith_number":"pith:IOLQ4HWM","schema_version":"1.0","canonical_sha256":"43970e1eccea999ed060f82133e2b4bc54fbea013ce75be8d2d349a522064e05","source":{"kind":"arxiv","id":"1607.06642","version":2},"attestation_state":"computed","paper":{"title":"HRTF-based Robust Least-Squares Frequency-Invariant Polynomial Beamforming","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SD","authors_text":"Hendrik Barfuss, Marcel Mueglich, Walter Kellermann","submitted_at":"2016-07-22T11:56:52Z","abstract_excerpt":"In this work, we propose a robust Head-Related Transfer Function (HRTF)-based polynomial beamformer design which accounts for the influence of a humanoid robot's head on the sound field. In addition, it allows for a flexible steering of our previously proposed robust HRTF-based beamformer design. We evaluate the HRTF-based polynomial beamformer design and compare it to the original HRTF-based beamformer design by means of signal-independent measures as well as word error rates of an off-the-shelf speech recognition system. Our results confirm the effectiveness of the polynomial beamformer desi"},"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":"1607.06642","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.SD","submitted_at":"2016-07-22T11:56:52Z","cross_cats_sorted":[],"title_canon_sha256":"563029ab790fa8d9b8e4a574e9928e266dda162a25d5ba3f966f39c535c8e2a6","abstract_canon_sha256":"9aaf89f2ad7cd79e5459bea47b83a5b53ad15739438b3629d13d442c865de22a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:04:55.564433Z","signature_b64":"cP1G7/ySjhE8rfx3J3sLRLIWpBegcT4A6lBgYmQ6Xz4TqBQTNuO3uI96h/Hidn2Nz5amyE0uG617s59NYxo/CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"43970e1eccea999ed060f82133e2b4bc54fbea013ce75be8d2d349a522064e05","last_reissued_at":"2026-05-18T01:04:55.563924Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:04:55.563924Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"HRTF-based Robust Least-Squares Frequency-Invariant Polynomial Beamforming","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.SD","authors_text":"Hendrik Barfuss, Marcel Mueglich, Walter Kellermann","submitted_at":"2016-07-22T11:56:52Z","abstract_excerpt":"In this work, we propose a robust Head-Related Transfer Function (HRTF)-based polynomial beamformer design which accounts for the influence of a humanoid robot's head on the sound field. In addition, it allows for a flexible steering of our previously proposed robust HRTF-based beamformer design. We evaluate the HRTF-based polynomial beamformer design and compare it to the original HRTF-based beamformer design by means of signal-independent measures as well as word error rates of an off-the-shelf speech recognition system. Our results confirm the effectiveness of the polynomial beamformer desi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1607.06642","kind":"arxiv","version":2},"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":"1607.06642","created_at":"2026-05-18T01:04:55.564002+00:00"},{"alias_kind":"arxiv_version","alias_value":"1607.06642v2","created_at":"2026-05-18T01:04:55.564002+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1607.06642","created_at":"2026-05-18T01:04:55.564002+00:00"},{"alias_kind":"pith_short_12","alias_value":"IOLQ4HWM5KMZ","created_at":"2026-05-18T12:30:22.444734+00:00"},{"alias_kind":"pith_short_16","alias_value":"IOLQ4HWM5KMZ5UDA","created_at":"2026-05-18T12:30:22.444734+00:00"},{"alias_kind":"pith_short_8","alias_value":"IOLQ4HWM","created_at":"2026-05-18T12:30:22.444734+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/IOLQ4HWM5KMZ5UDA7AQTHYVUXR","json":"https://pith.science/pith/IOLQ4HWM5KMZ5UDA7AQTHYVUXR.json","graph_json":"https://pith.science/api/pith-number/IOLQ4HWM5KMZ5UDA7AQTHYVUXR/graph.json","events_json":"https://pith.science/api/pith-number/IOLQ4HWM5KMZ5UDA7AQTHYVUXR/events.json","paper":"https://pith.science/paper/IOLQ4HWM"},"agent_actions":{"view_html":"https://pith.science/pith/IOLQ4HWM5KMZ5UDA7AQTHYVUXR","download_json":"https://pith.science/pith/IOLQ4HWM5KMZ5UDA7AQTHYVUXR.json","view_paper":"https://pith.science/paper/IOLQ4HWM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1607.06642&json=true","fetch_graph":"https://pith.science/api/pith-number/IOLQ4HWM5KMZ5UDA7AQTHYVUXR/graph.json","fetch_events":"https://pith.science/api/pith-number/IOLQ4HWM5KMZ5UDA7AQTHYVUXR/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IOLQ4HWM5KMZ5UDA7AQTHYVUXR/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IOLQ4HWM5KMZ5UDA7AQTHYVUXR/action/storage_attestation","attest_author":"https://pith.science/pith/IOLQ4HWM5KMZ5UDA7AQTHYVUXR/action/author_attestation","sign_citation":"https://pith.science/pith/IOLQ4HWM5KMZ5UDA7AQTHYVUXR/action/citation_signature","submit_replication":"https://pith.science/pith/IOLQ4HWM5KMZ5UDA7AQTHYVUXR/action/replication_record"}},"created_at":"2026-05-18T01:04:55.564002+00:00","updated_at":"2026-05-18T01:04:55.564002+00:00"}