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Hokkaido University Collection of Scholarly and Academic Papers >
Hokkaido University Sustainability Weeks >
Sustainability Weeks 2009 >
2009 APSIPA Annual Summit and Conference >
A Low-Distortion Noise Canceller with an SNR-Modified Partitioned Power-Normalized PNLMS Algorithm
| Title: | A Low-Distortion Noise Canceller with an SNR-Modified Partitioned Power-Normalized PNLMS Algorithm |
| Authors: | Sugiyama, Akihiko Browse this author | | Kato, Masanori Browse this author | | Serizawa, Masahiro Browse this author |
| Issue Date: | 4-Oct-2009 |
| Publisher: | Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference, International Organizing Committee |
| Journal Title: | Proceedings : APSIPA ASC 2009 : Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference |
| Start Page: | 222 |
| End Page: | 225 |
| Abstract: | This paper proposes a low-distortion noise canceller with an SNR-modified partitioned power-normalized PNLMS algorithm. The coefficient adaptation stepsize is controlled by two factors; an estimated signal-to-noise ratio (SNR) at the primary input and a relative coefficient magnitude normalized by the reference power. The SNR is estimated based on the noise replica and the noise-canceller output. The SNR-controlled stepsize provides robustness to interference of the desired speech to the error. A newly developed partitioned power-normalized proportionate normalized least-mean-squares (PP-PNLMS) algorithm helps stabilize coefficient fluctuations caused by a delay in recursive SNR estimation. Subjective evaluation results have demonstrated statistically significant differences in the low-SNR scores over a 3GPP noise suppressor. |
| Description: | APSIPA ASC 2009: Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference. 4-7 October 2009. Sapporo, Japan. Poster session: Audio and Electroacoustics (5 October 2009). |
| Conference Name: | APSIPA ASC 2009: Asia-Pacific Signal and Information Processing Association, 2009 Annual Summit and Conference | | 2009年アジア太平洋信号情報処理連合学会アニュアルサミット・国際会議 |
| Conference Place: | Sapporo |
| Type: | proceedings |
| URI: | http://hdl.handle.net/2115/39677 |
| Appears in Collections: | 北海道大学サステナビリティ・ウィーク2009 (Sustainability Weeks 2009) > 2009年アジア太平洋信号情報処理連合学会アニュアルサミット・国際会議 (2009 APSIPA Annual Summit and Conference)
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