Noise Reduction in Dual-Microphone Mobile Phones Using a Bank of Pre-Measured Target-Cancellation Filters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F13%3A00392904" target="_blank" >RIV/67985556:_____/13:00392904 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Noise Reduction in Dual-Microphone Mobile Phones Using a Bank of Pre-Measured Target-Cancellation Filters

Popis výsledku v původním jazyce

In this paper, a novel method of noise reduction for dualmicrophone mobile phones is proposed. The method is based on a set (bank) of target-cancellation filters derived in a noisefree situation for different possible positions of the phone with respectto the speaker mouth. Next, a novel construction of the target-cancellation filter is proposed, which is suitable for the application. The set of the cancellation filters is used to accurately estimate the noise of the environment, which is then subtracted from the recorded signal via standard Wiener filter or a power level difference method. Experiments with recorded data show a good performance and low complexity of the system, making it possible for an integration into mobile communication devices.

Název v anglickém jazyce

Noise Reduction in Dual-Microphone Mobile Phones Using a Bank of Pre-Measured Target-Cancellation Filters

Popis výsledku anglicky

In this paper, a novel method of noise reduction for dualmicrophone mobile phones is proposed. The method is based on a set (bank) of target-cancellation filters derived in a noisefree situation for different possible positions of the phone with respectto the speaker mouth. Next, a novel construction of the target-cancellation filter is proposed, which is suitable for the application. The set of the cancellation filters is used to accurately estimate the noise of the environment, which is then subtracted from the recorded signal via standard Wiener filter or a power level difference method. Experiments with recorded data show a good performance and low complexity of the system, making it possible for an integration into mobile communication devices.

Druh

D - Stať ve sborníku

CEP obor

BI - Akustika a kmity

OECD FORD obor

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Projekt

<a href="/cs/project/GAP103%2F12%2F1794" target="_blank" >GAP103/12/1794: Pokročilé metody pro analýzu a řízení složitých systémů.</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

2013 IEEE International Conference on Acoustics, Speech, and Signal Processing ICASSP 2013

ISBN

978-1-4799-0355-9

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

679-683

Název nakladatele

IEEE

Místo vydání

Vancouver

Místo konání akce

Vancouver

Datum konání akce

27. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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