Noise Feedback Coding Revisited： Refurbished Legacy Codecs and New Coding Models
Noise feedback coding （NFC） has attracted renewed interest with the recent standardization of backward-compatible enhancements for ITU-T G.711 and G.722. It has also been revisited with the emergence of proprietary speech codecs, such as BV16, BV32, and SILK, that have structures different from CELP...
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| Veröffentlicht in: | ZTE Communications 2012-06, Vol.10 (2), p.34-44 |
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| creator | Ragot, S Koevesi, B Le Guyader, A |
| description | Noise feedback coding （NFC） has attracted renewed interest with the recent standardization of backward-compatible enhancements for ITU-T G.711 and G.722. It has also been revisited with the emergence of proprietary speech codecs, such as BV16, BV32, and SILK, that have structures different from CELP coding. In this article, we review NFC and describe a novel coding technique that optimally shapes coding noise in embedded pulse-code modulation （PCM） and embedded adaptive differential PCM （ADPCM）. We describe how this new technique was incorporated into the recent ITU-T G.711.1, G.711 App. III, and G.722 Annex B （G.722B） speech-coding standards. |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 1673-5188 |
| ispartof | ZTE Communications, 2012-06, Vol.10 (2), p.34-44 |
| issn | 1673-5188 |
| language | chi ; eng |
| recordid | cdi_wanfang_journals_zxtxjs_e201202009 |
| source | Alma/SFX Local Collection |
| subjects | ADPCM CELP编码 Codec ITU-T 噪声反馈 编码模式 翻新 脉冲编码调制 语音编解码器 |
| title | Noise Feedback Coding Revisited： Refurbished Legacy Codecs and New Coding Models |
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