AES E-Library

A Comparison of Two Types of Digitized Autocorrelation Vocoders

Intelligibility test results are presented for two types of 2400 bit/second autocorrelation vocoders. One vocoder directly transmits the digitized coefficients in a Laguerre expansion of the autocorrelation function. The other vocoder contains a resistor matrix which transforms these coefficients to spectrum amplitude values and is therefore compatible with present channel vocoders. A comparison of the effects of fixed vs variable reference spectrum encoding is presented.

Authors: Howard, Calvin F.; Manley, Harold J.; Stoddard, James C.
Affiliation: Applied Research Laboratory, Sylvania Electronic Systems, Waltham, MA
JAES Volume 15 Issue 4 pp. 404-406; October 1967 Import into BibTeX

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 aes2)   /jrnl5367/1967/6699.pdf

Start a discussion about this paper!