8～64kbit/s super-wideband embedded speech and audio coding algorithm
Based on the international telecommunication union telecommunication standardization sector （ITU-T） recommendation G.729.1 and modified modulated lapped transform （MLT） coding, a super-wideband embedded variable bit-rate speech and audio coding algorithm was proposed, the bit-rates of this codec was...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2009-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74650030/ |
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| _version_ | 1841537651447955456 |
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| author | JIA Mao-shen BAO Chang-chun LI Rui |
| author_facet | JIA Mao-shen BAO Chang-chun LI Rui |
| author_sort | JIA Mao-shen |
| collection | DOAJ |
| description | Based on the international telecommunication union telecommunication standardization sector （ITU-T） recommendation G.729.1 and modified modulated lapped transform （MLT） coding, a super-wideband embedded variable bit-rate speech and audio coding algorithm was proposed, the bit-rates of this codec was from 8kbit/s to 64kbit/s. The information in the frequencies of 0~7 kHz was encoded by G.729.1 codec at 8~32kbit/s, the information in the frequencies of 7~14 kHz was encoded by the transform coding at 36、40 and 48kbit/s, and G.729.1 residual signal’s MDCT （modified discrete cosine transform） was encoded by the transform coding at 56 and 64kbit/s. The objective and subjective listening tests show that this codec has good performance compared with Terms of Reference given by ITU-T. |
| format | Article |
| id | doaj-art-cc6be3eb70e942fab7396ed20486a8ff |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2009-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-cc6be3eb70e942fab7396ed20486a8ff2025-01-14T08:29:16ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2009-01-01302734746500308～64kbit/s super-wideband embedded speech and audio coding algorithmJIA Mao-shenBAO Chang-chunLI RuiBased on the international telecommunication union telecommunication standardization sector （ITU-T） recommendation G.729.1 and modified modulated lapped transform （MLT） coding, a super-wideband embedded variable bit-rate speech and audio coding algorithm was proposed, the bit-rates of this codec was from 8kbit/s to 64kbit/s. The information in the frequencies of 0~7 kHz was encoded by G.729.1 codec at 8~32kbit/s, the information in the frequencies of 7~14 kHz was encoded by the transform coding at 36、40 and 48kbit/s, and G.729.1 residual signal’s MDCT （modified discrete cosine transform） was encoded by the transform coding at 56 and 64kbit/s. The objective and subjective listening tests show that this codec has good performance compared with Terms of Reference given by ITU-T.http://www.joconline.com.cn/zh/article/74650030/speech processingspeech codingaudio codingembedded coding |
| spellingShingle | JIA Mao-shen BAO Chang-chun LI Rui 8～64kbit/s super-wideband embedded speech and audio coding algorithm Tongxin xuebao speech processing speech coding audio coding embedded coding |
| title | 8～64kbit/s super-wideband embedded speech and audio coding algorithm |
| title_full | 8～64kbit/s super-wideband embedded speech and audio coding algorithm |
| title_fullStr | 8～64kbit/s super-wideband embedded speech and audio coding algorithm |
| title_full_unstemmed | 8～64kbit/s super-wideband embedded speech and audio coding algorithm |
| title_short | 8～64kbit/s super-wideband embedded speech and audio coding algorithm |
| title_sort | 8 64kbit s super wideband embedded speech and audio coding algorithm |
| topic | speech processing speech coding audio coding embedded coding |
| url | http://www.joconline.com.cn/zh/article/74650030/ |
| work_keys_str_mv | AT jiamaoshen 864kbitssuperwidebandembeddedspeechandaudiocodingalgorithm AT baochangchun 864kbitssuperwidebandembeddedspeechandaudiocodingalgorithm AT lirui 864kbitssuperwidebandembeddedspeechandaudiocodingalgorithm |