AES E-Library

Compatibility Matrixing of Multichannel Bit-Rate Reduced Audio Signals

Matrixing enables multichannel audio to be made two-channel compatible. If bit-rate reduction based upon psychoacoustic models is applied to the two-channel down mix, unmasking of the quantization noise may result after dematrixing. The general principle to solve this problem is presented. It is shown how minimum bit rates are obtained by dynamic switching between the possible matrix equations. The necessary refinements to enable such dynamic switching are presented.

Author: ten Kate, Warner R.
Affiliation: Philips Research Laboratories, Eindhoven, The Netherlands
AES Convention:96 (February 1994) Paper Number:3792 Import into BibTeX
Subject:Bit Rate Reduction Schemes

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 aes13)   /pp9496/pp9402/3752.pdf

Start a discussion about this paper!