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Enhanced Variable Rate Codec

Known as: EVRC, IS-127 
Enhanced Variable Rate CODEC (EVRC) is a speech codec used in CDMA networks. It was developed in 1995 to replace the QCELP vocoder which used more… 
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Papers overview

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2014
2014
A lot of study has been done on the voice QoE (Quality of Experience). However, QoE study on the background of Chinese language… 
2006
2006
一种包含编码器电路和代码转换器电路的装置。 编码器电路响应于话音输入信号以产生包含一系列包的比特流。 代码转换器电路响应于该比特流产生中间比特流。 代码转换器电路用于:(a)响应于该比特流的每个包中的数据类型,(i)实现包括可选模式语音(SMV… 
2006
2006
A method for the continuous removal of gaseous or liquid impurities from waste gases from chemical industrial processing plants… 
2005
2005
This document defines several enhancements and extensions to RFC3558 EVRC RTP payload format. In particular, it defines the… 
2003
2003
  • Irina Cotanis
  • 2003
  • Corpus ID: 4434484
The speech quality over the converged voice and data networks represents a challenge for the network developers and operators… 
2003
2003
RFC 2658 specifies the streaming format for 3GPP2 13K vocoder (High Rate Speech Service Option 17 for Wideband Spread Spectrum… 
2001
2001
In this paper, we developed speaker verification system for m-commerce (mobile commerce) via wireless internet and WAP. We… 
1998
1998
Robust vector quantization of LSF parameters at a low bit rate is essential for voice coders operating below 5 Kbps. A novel…