Journal Forum

A Meta-Analysis of High Resolution Audio Perceptual Evaluation - June 2016

Synthetic Reverberator - January 1960

Sound Board: High-Resolution Audio - October 2015

Access Journal Forum

AES E-Library

A New Audio Bit Rate Reduction System for the CD-I Format

Document Thumbnail

This paper describes a newly developed audio bit rate reduction systems for the CD-I (Compact Disc Interactive) format. The bit rate reduction system is based on the fact that the spectrum and amplitude distribution of audio signals tends to be concentrated in a certain region. We have developed an algorithm of the bit rate reduction system and built both an encoder using DSPs and a dedicated decoder LSI. The present system allows us to record and reproduce audio signals of three different bit rates to match specific applications. Level A: Audio signals whose quality is almost the same as that obtainable with compact discs, using 309 Kbits/second per channel. Level B: Audio signals of slightly lower quality than Level A, but still suitable for high-quality music, using 159 Kbits/second per channel. Level C: Audio signals for recording and reproduction of high-quality speech, using 80 Kbits/second per channel.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper as a non-member 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 $33 for non-members and is temporarily free for AES members.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society