FAR-FIELD NOISE REDUCTION VIA SPATIAL FILTERING USING A MICROPHONE ARRAY

Systems and methods for reducing far-field noise (background noise) from near-field audio signals generated by a microphone array. The systems and methods disclosed herein use an innovative spatial filtering approach which filters far-field ambient noise from the near-field audio and reduces the far...

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Bibliographische Detailangaben
1. Verfasser:	TRACEY, James
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACOUSTICS DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MUSICAL INSTRUMENTS PHYSICS PUBLIC ADDRESS SYSTEMS SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION
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Beschreibung
Zusammenfassung:	Systems and methods for reducing far-field noise (background noise) from near-field audio signals generated by a microphone array. The systems and methods disclosed herein use an innovative spatial filtering approach which filters far-field ambient noise from the near-field audio and reduces the far-field noise in the near-field audio signal thereby improving and isolating the near-field audio from the far-field interference. L'invention concerne des systèmes et des procédés pour réduire le bruit en champ lointain (bruit de fond) de signaux audio en champ proche générés par un réseau de microphones. Les systèmes et les procédés divulgués dans la description utilisent une approche de filtrage spatial innovante qui filtre le bruit ambiant en champ lointain de l'audio en champ proche et réduit le bruit en champ lointain dans le signal audio en champ proche, ce qui permet d'améliorer et d'isoler l'audio en champ proche de l'interférence en champ lointain.