Skip to search formSkip to main content
You are currently offline. Some features of the site may not work correctly.

Qualcomm code-excited linear prediction

Known as: Qualcomm PureVoice, 13k audio, 13k vocoder 
Qualcomm code-excited linear prediction (QCELP), also known as Qualcomm PureVoice, is a speech codec developed in 1994 by Qualcomm to increase the… Expand
Wikipedia

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2005
2005
We propose a speech watermarking algorithm based on the modification of the pitch (fundamental frequency) and duration of the… Expand
  • figure 1
  • figure 2
  • figure 3
  • figure 4
  • table I
2005
2005
Service.- Implementation and Usability Evaluation of AAC System for Handicapped Persons.- Tracking Data Management of Spatial… Expand
2001
2001
In this paper, we propose acombined variable-rate code-excited linearly predictive (QCELP)speech coding and unequal error… Expand
  • table 1
  • figure 1
  • figure 2
  • table 2
  • figure 3
1997
1997
Code-excited linear prediction (CELP) is the predominant methodology for communications quality speech coding below 8 kbps, and… Expand
  • figure 1
  • figure 2
  • figure 3
  • figure 4
  • figure 5
1995
1995
The goal of this study is to develop a robust and high-quality speech coder for wireless communication. The proposed coder is a… Expand
  • figure 1
1995
1995
A new set of equations relating the coefficients of a finite-impulse-response (FIR) system and the third- and fourth-order… Expand
  • figure 1
1994
1994
This paper describes a full-custom ASIC implementation of the QCELP voice compression algorithm. Applications for the ASIC are… Expand
  • figure 1
  • figure 2
1994
1994
A variable bit-rate speech coder intended for digital cellular applications is described. A voice activity detection algorithm is… Expand
  • figure 2
  • table 2
  • figure 3
  • figure 4
1993
1993
A speech coder based on variable rate phonetic segmentation (VRPS), operating at an average rate of 3 kbit/s and applicable to… Expand
  • table 1
  • table 2
  • figure 1
Highly Cited
1993
Highly Cited
1993
Digital cellular telephone systems require efficient encoding of speech to achieve capacity improvements required of the next… Expand