...
首页> 外文期刊>IEEE Transactions on Communications >Multiuser rate subband coding incorporating DSI and buffer control
【24h】

Multiuser rate subband coding incorporating DSI and buffer control

机译:结合了DSI和缓冲区控制的多用户速率子带编码

获取原文
获取原文并翻译 | 示例
           

摘要

A model of multiuser variable rate subband coding of speech incorporating digital speech interpolation (DSI) is presented and analyzed. A dynamic bit assignment algorithm which minimizes the mean squared reconstruction error is presented. A backward estimation of subband variances which makes the bit assignment algorithm backward-adaptive and greatly reduces the need to send side information is proposed. A novel switched-stepsize adaptation algorithm is used at the coders to improve system performance. With adaptive buffer control, buffer overflow is completely prevented. It has been shown by simulation means that a 2:1 DSI gain can be obtained with a relatively small buffer size.
机译:提出并分析了结合数字语音插值(DSI)的语音多用户可变速率子带编码模型。提出了一种动态比特分配算法,该算法使均方根重构误差最小。提出了子带方差的后向估计,该估计使位分配算法向后自适应并大大减少了发送辅助信息的需要。一种新颖的开关步长自适应算法在编码器上使用,以提高系统性能。利用自适应缓冲器控制,可以完全防止缓冲器溢出。通过仿真已经表明,可以以相对较小的缓冲器大小获得2:1 DSI增益。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号