| Presentation | 2007-01-26 A study of the delay impairment factor in an opinion model for wideband coded speech Yuki YUHARA, Nobuhiko KITAWAKI, Takeshi YAMADA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, IP telephony has been widespread and it is thought that a hands-free communication without a receiver for a telephone call is widely used at the real diffusion period. In general, it is felt that speech quality is bad when a conventional telephone band coded speech is used by a hands-free communication. Therefore, a high quality communication by the wideband coded speech will be hoped in the future. When the coded speech quality of IP telephony is evaluated, E-model that estimates the speech quality from various quality degradation factors is used. However, it corresponds only to the telephone band coded speech, and the standardization of objective quality assessment methodologies is needed. Then, authors examined about the delay impairment factor of wideband codec. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Wideband / IP Telephony / E-model / R-value / delay |
| Paper # | CQ2006-92 |
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| Conference Information | |
| Committee | CQ |
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| Conference Date | 2007/1/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Communication Quality (CQ) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study of the delay impairment factor in an opinion model for wideband coded speech |
| Sub Title (in English) | |
| Keyword(1) | Wideband |
| Keyword(2) | IP Telephony |
| Keyword(3) | E-model |
| Keyword(4) | R-value |
| Keyword(5) | delay |
| 1st Author's Name | Yuki YUHARA |
| 1st Author's Affiliation | University of Tsukuba() |
| 2nd Author's Name | Nobuhiko KITAWAKI |
| 2nd Author's Affiliation | University of Tsukuba |
| 3rd Author's Name | Takeshi YAMADA |
| 3rd Author's Affiliation | University of Tsukuba |
| Date | 2007-01-26 |
| Paper # | CQ2006-92 |
| Volume (vol) | vol.106 |
| Number (no) | 495 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |