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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| creator | Ko, Sang-chul Lee, Gun-woo Lee, Young-sang Lee, Yoon-jae Cha, Aran |
| description | 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. |
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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.</description><language>eng ; fre ; ger</language><subject>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</subject><creationdate>2020</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200722&DB=EPODOC&CC=EP&NR=2860544B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200722&DB=EPODOC&CC=EP&NR=2860544B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Ko, Sang-chul</creatorcontrib><creatorcontrib>Lee, Gun-woo</creatorcontrib><creatorcontrib>Lee, Young-sang</creatorcontrib><creatorcontrib>Lee, Yoon-jae</creatorcontrib><creatorcontrib>Cha, Aran</creatorcontrib><title>AUDIO APPARATUS AND METHOD OF REDUCING NOISE</title><description>An audio apparatus is provided. 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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.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | 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 |
| title | AUDIO APPARATUS AND METHOD OF REDUCING NOISE |
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