| Presentation | 2002/4/18 A Wideband Noise Suppressor for the AMR Wideband Speech Codec Masanori KATO, Akihiko SUGIYAMA, Masahiro SERIZAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A wideband noise suppressor for the AMR (Adaptive Multi-Rate) wideband speech codec is proposed. The wideband noise suppressor features weighted noise estimation for an accurate noise estimate, pseudo noisg injection for more suitable spectral gain, and synthesis windowing for smooth transition at frame boundaries. In the subjective evaluation with the AMR wideband speech codec, the proposed noise suppressor satisfies all eighteen provisional requirements, which was originally standardized for AMR narrowband noise suppressor, in absolute category rating, ten out of twelve provisional requirements in comparison category rating (CCR), respectively. Although it does not meet two requirements in CCR, its basic performance suggests that the proposed wideband noise suppressor is most likely to meet all requirements by the evaluation with 24 listeners specified in the test plan for AMR narrowband noise suppressor. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Noise suppression / speech enhancement / AMR wideband speech codec |
| Paper # | SP2002-2 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2002/4/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Speech (SP) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Wideband Noise Suppressor for the AMR Wideband Speech Codec |
| Sub Title (in English) | |
| Keyword(1) | Noise suppression |
| Keyword(2) | speech enhancement |
| Keyword(3) | AMR wideband speech codec |
| 1st Author's Name | Masanori KATO |
| 1st Author's Affiliation | Multimedia Research Laboratories, NEC Corporation() |
| 2nd Author's Name | Akihiko SUGIYAMA |
| 2nd Author's Affiliation | Multimedia Research Laboratories, NEC Corporation |
| 3rd Author's Name | Masahiro SERIZAWA |
| 3rd Author's Affiliation | Multimedia Research Laboratories, NEC Corporation |
| Date | 2002/4/18 |
| Paper # | SP2002-2 |
| Volume (vol) | vol.102 |
| Number (no) | 34 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |