AES E-Library

Real-Time CELP Speech Coding in a Voice Response Environment

Voice response systems utilizing digital voice storage have existed for several years. The advantages of using low bit rate speech coding methods in these applications are also well known (1,2). However, few commercial voice response systems to date have performed any compression of the digitized speech signal. This has been due to the fact that toll- or near-toll-quality speech is generally required; until recently, this was only possible with relatively high bit rate waveform coders. The paper will describe the implementation of and our experiences with real-time mutlichannel Code-Excited Linear Predictive (CELP) speech coding multiple digital signal processors.

Author: Erskine, D. Cole
Affiliation: Analogical Systems, Palo Alto, CA
AES Convention:91 (October 1991) Paper Number:3186 Import into BibTeX
Subject:Signal Processing

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location: (CD aes12)   /pp9193/pp9110/3246.pdf

Start a discussion about this paper!