NOISE REDUCTION DEVICE, AUDIO INPUT DEVICE, RADIO COMMUNICATION DEVICE, AND NOISE REDUCTION METHOD

PROBLEM TO BE SOLVED: To provide a noise reduction device capable of suppressing reduction of sound pressure level.SOLUTION: A noise reduction device 1 includes: an audio interval determination unit 11 which determines the audio interval on the basis of a sound collection signal 21; an audio directi...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	YAMABE TAKAO
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS ANALOGOUS ARRANGEMENTS USING OTHER WAVES DEAF-AID SETS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASURING MUSICAL INSTRUMENTS PHYSICS PUBLIC ADDRESS SYSTEMS RADIO DIRECTION-FINDING RADIO NAVIGATION SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION TELEPHONIC COMMUNICATION TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a noise reduction device capable of suppressing reduction of sound pressure level.SOLUTION: A noise reduction device 1 includes: an audio interval determination unit 11 which determines the audio interval on the basis of a sound collection signal 21; an audio direction determination unit 12 which determines arrival direction of audio using the sound collection signal 22 and the sound collection signal 21 in the audio interval; and a noise reduction processing unit 13 which reduces noise components contained in the sound collection signal 21 using the sound collection signal 22. Then, the noise reduction processing unit 13 adjusts the reduction amount of noise in the noise reduction processing unit 13 according to the arrival direction of audio.