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… (More)
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Topic mentions per year

Topic mentions per year

1998-2014
02419982014

Papers overview

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2008
2008
This document specifies Real-time Transport Protocol (RTP) payload formats to be used for the Enhanced Variable Rate Wideband… (More)
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2008
2008
This paper proposes an efficient method for estimating frame energy of speech from enhanced variable rate coder (EVRC) bitstream… (More)
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2007
2007
This document updates the Enhanced Variable Rate Codec (EVRC) RTP payload formats defined in RFC 3558 with several enhancements… (More)
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2005
2005
We describe a perceptually-motivated rate determination algorithm (RDA) for variable bit rate speech coding. Unlike existing rate… (More)
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2003
2003
In this paper, a novel transcoding algorithm for the Adaptive Multi Rate (AMR) codec and the Enhanced Variable Rate Codec (EVRC… (More)
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Highly Cited
2000
Highly Cited
2000
In this letter, we propose a novel speech enhancement technique based on global soft decision. The proposed approach provides a… (More)
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2000
2000
An efficient enhanced variable rate codec (EVRC) codebook search method based on a two-stage search is proposed. At the first… (More)
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Highly Cited
1999
Highly Cited
1999
Speech enhancement algorithms which are based on estimating the short-time spectral amplitude of the clean speech have better… (More)
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1998
1998
Robust vector quantization of LSF parameters at a low bit rate is essential for voice coders operating below 5 Kbps. A novel… (More)
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