Abstract
In single-channel non-stationary noise reduction it is paramount that a good noise reference is available in a timely manner to maintain a high quality speech signal. Using a remote wireless microphone placed close to a noise source, a good estimate of the noise power spectral density (PSD) can be acquired. This estimate, however, needs to be transmitted to the primary microphone for noise reduction. As wireless transmission is power intensive, it is desirable to reduce the bit-rate while maintaining good performance. In this paper, we propose techniques such as quantizing, frequency bin clubbing and intermittent PSD transmission to reduce the transmission bit-rate, and investigate their impact on performance.
Original language | English |
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Title of host publication | Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2012), March 25-30 2012, Kyoto, Japan |
Place of Publication | Piscataway |
Publisher | Institute of Electrical and Electronics Engineers |
Pages | 4641-4644 |
ISBN (Electronic) | 978-1-4673-0046-9 |
ISBN (Print) | 978-1-4673-0045-2 |
DOIs | |
Publication status | Published - 2012 |
Event | 2012 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012) - Kyoto, Japan Duration: 25 Mar 2012 → 30 Mar 2012 |
Conference
Conference | 2012 IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2012) |
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Abbreviated title | ICASSP 2012 |
Country/Territory | Japan |
City | Kyoto |
Period | 25/03/12 → 30/03/12 |
Other | 2012 IEEE international conference on acoustics, speech, and signal processing |