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`A portable USB-based microphonearray device for robust speech recognition
`Publisher: IEEE
`QiLi; Manli Zhu; WeiLi
`3
`1
`Paper
`Patent
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`Conferences > 2009 IEEEInternational Conte... @
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`Abstract
`
`DocumentSections
`;
`1.
`Introduction
`2. System Description
`
`2. Broadband Beamforming
`3. Noise Reduction
`
`5. ASR Experimental Results
`ShowFull Outline v
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`Authors
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`Keywords
`Metis
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`Abstract:
`Wepresent a USB-based,highly directional, and portable microphonearray device that delivers a crisp, clear and noise-
`reduced speechsignal. This device consists of fourlinearly distributed microphone sensorsanda filter-and-sum
`beamformerdesigned using broadband beam-forming algorithm. The device has a narrow acoustic beam pattern and
`identical frequency responsesfor almost all speech bands.In addition to beamforming, an adaptive noise reduction
`algorithm is usedto further reduce the backgroundnoise.Byutilizing both the spatial and temporalinformation, the SNR of
`speechsignals is improved and speechrecognition performancein noisy environmentsis significantly improved as reported
`in our experiments.
`
`MoreLike This
`rl an
`in
`Onl
`7
`—— INVA cua
`Processing Perspective
`IEEE Transactions on Audio, Speech,
`and Language Processing
`Published: 2007
`
`Publishedin: 2009 IEEEInternational Conference on Acoustics, Speech and Signal Processing
`
`Date of Conference: 19-24 April 2009
`Date Addedto IEEE Xplore: 26 May 2009
`
`INSPEC Accession Number: 10701439
`DOI: 10.1109/ICASSP.2009.4959830
`
`> ISBN Information:
`
`Publisher:
`
`IEEE
`
`Microphonearray signal processing for
`far-talking speech recognition
`2001 IEEE Third Workshop onSignal
`Processing Advancesin Wireless
`Communications (SPAWC'01).
`Workshop Proceedings (Cat.
`No.01EX471)
`Published: 2001
`
`> ISSN Information:
`
`1. Introduction
`
`Conference Location: Taipei
`
`Show More
`
`A microphonearray consists of multiple microphone sensorslocatedat different positions. It can be
`used for both sound sourcelocation[,
`‘ocessing the signals from each
`
`
`
`
`Authors
`a
`
`r4
`Discover
`the powerful .°
`new ral
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`Qi Li
`Li Creative Technologies,Inc., Florham Park, NJ, USA
`
`Manli Zhu
`Li Creative Technologies,Inc., Florham Park, NJ, USA
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`Figures
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`|(0)(olco
`Digital Library
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`|
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`Fa
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`v Vz.}
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`
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`WeiLi
`Li Creative Technologies,Inc., Florham Park, NJ, USA
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`
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`References
`v
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`Citations
`v
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`Keywords
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`Metrics
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