{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:7AKKAEK7HL5C7ORGOMBMZOA4H5","short_pith_number":"pith:7AKKAEK7","canonical_record":{"source":{"id":"2409.13502","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2024-09-20T13:42:50Z","cross_cats_sorted":["cs.SD"],"title_canon_sha256":"c0f1168c16fc6923a76258298e5e7e6db962f19bf3bd627e2e848a9975c956a3","abstract_canon_sha256":"af14a5374aa7d7b973dc473051af1b2cda1cf4982c915807987b779c8f39bf38"},"schema_version":"1.0"},"canonical_sha256":"f814a0115f3afa2fba267302ccb81c3f614e6b4d183eef2fa2223041e0b39d0c","source":{"kind":"arxiv","id":"2409.13502","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.13502","created_at":"2026-07-05T09:09:36Z"},{"alias_kind":"arxiv_version","alias_value":"2409.13502v1","created_at":"2026-07-05T09:09:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.13502","created_at":"2026-07-05T09:09:36Z"},{"alias_kind":"pith_short_12","alias_value":"7AKKAEK7HL5C","created_at":"2026-07-05T09:09:36Z"},{"alias_kind":"pith_short_16","alias_value":"7AKKAEK7HL5C7ORG","created_at":"2026-07-05T09:09:36Z"},{"alias_kind":"pith_short_8","alias_value":"7AKKAEK7","created_at":"2026-07-05T09:09:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:7AKKAEK7HL5C7ORGOMBMZOA4H5","target":"record","payload":{"canonical_record":{"source":{"id":"2409.13502","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2024-09-20T13:42:50Z","cross_cats_sorted":["cs.SD"],"title_canon_sha256":"c0f1168c16fc6923a76258298e5e7e6db962f19bf3bd627e2e848a9975c956a3","abstract_canon_sha256":"af14a5374aa7d7b973dc473051af1b2cda1cf4982c915807987b779c8f39bf38"},"schema_version":"1.0"},"canonical_sha256":"f814a0115f3afa2fba267302ccb81c3f614e6b4d183eef2fa2223041e0b39d0c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T09:09:36.559645Z","signature_b64":"JD10k/aVQRGhqfELXAUoKbiRNbYmSDV4mxosnYgzTZKxjpBGOca8C+ItlHCJulimh4B8AB2yATlKaQxGCgWjAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f814a0115f3afa2fba267302ccb81c3f614e6b4d183eef2fa2223041e0b39d0c","last_reissued_at":"2026-07-05T09:09:36.559057Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T09:09:36.559057Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2409.13502","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":"2026-07-05T09:09:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qY/cLAPU5CScFiuk4S34bR9Lp0bTrw1lmq9zHO66I+ni7vHjnPzD8tZhgFF7IqJI0NaRG0MzOLW5efOCWjLNBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T18:11:01.005345Z"},"content_sha256":"32a63080fe33038f41d16f6e2c943a09b9732715c43f77ce48d785526c54a025","schema_version":"1.0","event_id":"sha256:32a63080fe33038f41d16f6e2c943a09b9732715c43f77ce48d785526c54a025"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:7AKKAEK7HL5C7ORGOMBMZOA4H5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neural Directional Filtering: Far-Field Directivity Control With a Small Microphone Array","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SD"],"primary_cat":"eess.AS","authors_text":"Emanu\\\"el A. P. Habets, Julian Wechsler, Mhd Modar Halimeh, Oliver Thiergart, Srikanth Raj Chetupalli","submitted_at":"2024-09-20T13:42:50Z","abstract_excerpt":"Capturing audio signals with specific directivity patterns is essential in speech communication. This study presents a deep neural network (DNN)-based approach to directional filtering, alleviating the need for explicit signal models. More specifically, our proposed method uses a DNN to estimate a single-channel complex mask from the signals of a microphone array. This mask is then applied to a reference microphone to render a signal that exhibits a desired directivity pattern. We investigate the training dataset composition and its effect on the directivity realized by the DNN during inferenc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.13502","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2409.13502/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T09:09:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eyVOvuP8IcRIh6sz7zKiT7HN9mddGx8raebudmVZkhXshTCmxFF8lt6eJD72a+0W3k/y3AzWBpvCRZXmzkFUBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-17T18:11:01.005713Z"},"content_sha256":"a3ee117b77cd4da8ee6a961615a52c58d7f5e008deb47c1df62dc0fae1e40a23","schema_version":"1.0","event_id":"sha256:a3ee117b77cd4da8ee6a961615a52c58d7f5e008deb47c1df62dc0fae1e40a23"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7AKKAEK7HL5C7ORGOMBMZOA4H5/bundle.json","state_url":"https://pith.science/pith/7AKKAEK7HL5C7ORGOMBMZOA4H5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7AKKAEK7HL5C7ORGOMBMZOA4H5/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":"2026-08-17T18:11:01Z","links":{"resolver":"https://pith.science/pith/7AKKAEK7HL5C7ORGOMBMZOA4H5","bundle":"https://pith.science/pith/7AKKAEK7HL5C7ORGOMBMZOA4H5/bundle.json","state":"https://pith.science/pith/7AKKAEK7HL5C7ORGOMBMZOA4H5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7AKKAEK7HL5C7ORGOMBMZOA4H5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:7AKKAEK7HL5C7ORGOMBMZOA4H5","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":"af14a5374aa7d7b973dc473051af1b2cda1cf4982c915807987b779c8f39bf38","cross_cats_sorted":["cs.SD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2024-09-20T13:42:50Z","title_canon_sha256":"c0f1168c16fc6923a76258298e5e7e6db962f19bf3bd627e2e848a9975c956a3"},"schema_version":"1.0","source":{"id":"2409.13502","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2409.13502","created_at":"2026-07-05T09:09:36Z"},{"alias_kind":"arxiv_version","alias_value":"2409.13502v1","created_at":"2026-07-05T09:09:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2409.13502","created_at":"2026-07-05T09:09:36Z"},{"alias_kind":"pith_short_12","alias_value":"7AKKAEK7HL5C","created_at":"2026-07-05T09:09:36Z"},{"alias_kind":"pith_short_16","alias_value":"7AKKAEK7HL5C7ORG","created_at":"2026-07-05T09:09:36Z"},{"alias_kind":"pith_short_8","alias_value":"7AKKAEK7","created_at":"2026-07-05T09:09:36Z"}],"graph_snapshots":[{"event_id":"sha256:a3ee117b77cd4da8ee6a961615a52c58d7f5e008deb47c1df62dc0fae1e40a23","target":"graph","created_at":"2026-07-05T09:09:36Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2409.13502/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Capturing audio signals with specific directivity patterns is essential in speech communication. This study presents a deep neural network (DNN)-based approach to directional filtering, alleviating the need for explicit signal models. More specifically, our proposed method uses a DNN to estimate a single-channel complex mask from the signals of a microphone array. This mask is then applied to a reference microphone to render a signal that exhibits a desired directivity pattern. We investigate the training dataset composition and its effect on the directivity realized by the DNN during inferenc","authors_text":"Emanu\\\"el A. P. Habets, Julian Wechsler, Mhd Modar Halimeh, Oliver Thiergart, Srikanth Raj Chetupalli","cross_cats":["cs.SD"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2024-09-20T13:42:50Z","title":"Neural Directional Filtering: Far-Field Directivity Control With a Small Microphone Array"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2409.13502","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":"sha256:32a63080fe33038f41d16f6e2c943a09b9732715c43f77ce48d785526c54a025","target":"record","created_at":"2026-07-05T09:09:36Z","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":"af14a5374aa7d7b973dc473051af1b2cda1cf4982c915807987b779c8f39bf38","cross_cats_sorted":["cs.SD"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.AS","submitted_at":"2024-09-20T13:42:50Z","title_canon_sha256":"c0f1168c16fc6923a76258298e5e7e6db962f19bf3bd627e2e848a9975c956a3"},"schema_version":"1.0","source":{"id":"2409.13502","kind":"arxiv","version":1}},"canonical_sha256":"f814a0115f3afa2fba267302ccb81c3f614e6b4d183eef2fa2223041e0b39d0c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f814a0115f3afa2fba267302ccb81c3f614e6b4d183eef2fa2223041e0b39d0c","first_computed_at":"2026-07-05T09:09:36.559057Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T09:09:36.559057Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JD10k/aVQRGhqfELXAUoKbiRNbYmSDV4mxosnYgzTZKxjpBGOca8C+ItlHCJulimh4B8AB2yATlKaQxGCgWjAA==","signature_status":"signed_v1","signed_at":"2026-07-05T09:09:36.559645Z","signed_message":"canonical_sha256_bytes"},"source_id":"2409.13502","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:32a63080fe33038f41d16f6e2c943a09b9732715c43f77ce48d785526c54a025","sha256:a3ee117b77cd4da8ee6a961615a52c58d7f5e008deb47c1df62dc0fae1e40a23"],"state_sha256":"d69a5b77e3f2e9ede3f3cd4c2f9d6831a49baa78544501a3d8318fad1c545de9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4v+Kf6W0VhKGBp2WoiXVgCXYbjGLzTjeAfL0mUuUIZavJXYG+TrOodQQQUV2yOQm8zLF0y/omSRjSJVeJipZBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-17T18:11:01.008286Z","bundle_sha256":"80e07b42ffe7f5bca871467d243e907fbbf280905468abbac3627eebf8b7ba40"}}