| Presentation | 2004/2/12 Standardization Activities for Speech Quality Assessment of IP Telephony (Communication Quality) Akira TAKAHASHI, Hitoshi AOKI, Nobuhiko KITAWAKI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | One of the great interests of IP-telephony users is its end-to-end QoS. The QoS of IP telephony should be evaluated in subjective terms. The quality evaluation methodologies of conventional telephony services have been studied for a long time, and resulted in the creation of a number of international standards. For IP-telephony services, which suffer from new quality degradatoin factors, on the other hand, the quality assessement methodologies have not been completely established. In particular, it is quite important to develop methodologies for quality monitoring and managemaent since IP networks do not necessarily guarantee the transmission performance. Such studies have been dealt with in ITU-T SG12. This paper introduce recent activities in SG12, espacially from the view point of objective quality assessment. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Speech Quality / Assessment / IP Telephony / Subjective Quality / Objective Quality / Standardization / ITU-T / SG12 |
| Paper # | CQ2003-119,MVE2003-110 |
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| Conference Information | |
| Committee | CQ |
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| Conference Date | 2004/2/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
| Secretary | |
| Assistant | |
| 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) | Standardization Activities for Speech Quality Assessment of IP Telephony (Communication Quality) |
| Sub Title (in English) | |
| Keyword(1) | Speech Quality |
| Keyword(2) | Assessment |
| Keyword(3) | IP Telephony |
| Keyword(4) | Subjective Quality |
| Keyword(5) | Objective Quality |
| Keyword(6) | Standardization |
| Keyword(7) | ITU-T |
| Keyword(8) | SG12 |
| 1st Author's Name | Akira TAKAHASHI |
| 1st Author's Affiliation | NTT Service Integration Laboratories() |
| 2nd Author's Name | Hitoshi AOKI |
| 2nd Author's Affiliation | NTT Service Integration Laboratories |
| 3rd Author's Name | Nobuhiko KITAWAKI |
| 3rd Author's Affiliation | Institute of Information Sciences and Electronics, University of Tsukuba |
| Date | 2004/2/12 |
| Paper # | CQ2003-119,MVE2003-110 |
| Volume (vol) | vol.103 |
| Number (no) | 660 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |