| Presentation | 1997/7/18 Acoustic echo cancellation using the STFT-CS method Takatoshi Okuno, Mikio Tohyama, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Acoustic echo cancellation has a problem that is how to estimate the transfer function under noisy or double-talk conditions. For such environment, either minimizing the LMS step parameter as small as possible or stopping the modifying process of adaptive filter has been investigated. This paper investigates the STFT-CS (Short-Time Fourier Transform & Cross Spectrum) method that is robust under noisy or double-talk conditions and describes its convergence property . This method updates the transfer function by dividing the cross spectrum between input signals and error signals by the power spectrum of input signals, where they are calculated on a block average basis. By computer simulation, the echo signal is suppressed about 25dB using a white noise as input signal under noisy conditions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Acoustic echo canceller / Acoustic signal processing / Adaptive filter |
| Paper # | EA97-23 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 1997/7/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Acoustic echo cancellation using the STFT-CS method |
| Sub Title (in English) | |
| Keyword(1) | Acoustic echo canceller |
| Keyword(2) | Acoustic signal processing |
| Keyword(3) | Adaptive filter |
| 1st Author's Name | Takatoshi Okuno |
| 1st Author's Affiliation | Computer Acoustics & Hearing labs. Kogakuin University() |
| 2nd Author's Name | Mikio Tohyama |
| 2nd Author's Affiliation | Computer Acoustics & Hearing labs. Kogakuin University |
| Date | 1997/7/18 |
| Paper # | EA97-23 |
| Volume (vol) | vol.97 |
| Number (no) | 179 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |