AUDIO APPARATUS AND METHOD OF REDUCING NOISE

An audio apparatus is provided. The audio apparatus includes an input unit (510) configured to receive an audio signal containing noise; a period estimation unit (520) configured to estimate a period of a noise pattern in the audio signal; a noise reducer (530) configured to subtract and remove the...

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Bibliographische Detailangaben
Hauptverfasser:	Ko, Sang-chul, Lee, Gun-woo, Lee, Young-sang, Lee, Yoon-jae, Cha, Aran
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS SOUND-PRODUCING DEVICES SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION TESTING
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Beschreibung
Zusammenfassung:	An audio apparatus is provided. The audio apparatus includes an input unit (510) configured to receive an audio signal containing noise; a period estimation unit (520) configured to estimate a period of a noise pattern in the audio signal; a noise reducer (530) configured to subtract and remove the noise pattern from the audio signal in a frequency domain by using the estimated period of the noise pattern; a noise updater (540) configured to update the noise pattern according to a change in amplitude of the noise; and an output unit (550) configured to output the audio signal obtained by removing the noise pattern.