Cart (Loading....) | Create Account
Close category search window
 

High quality audio encoding within 128 kbit/s

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Beaton, R.J. ; Div. of Adv. Technol., Microtel Pacific Res. Ltd., Burnaby, BC, Canada

An algorithm to encode 15-KHz bandwidth audio at 128 kb/s has been developed which has important applications in ISDN, digital audio recording, and the broadcasting industry. The algorithm uses subband ADPCM coding combined with adaptive bit allocation over multiple subbands to achieve high audio quality at a net data rate of 4 b per sample. Subband coders are generally found to perform better than the equivalent full-band coder in subjective tests, even though the full-band coder may achieve a higher SNR rating. This is due to perceptual masking effects which cause the band-limited quantization noise below a certain threshold in each subband to be masked by the signal. Dynamic allocation of bits to subbands on a sample-by-sample basis, together with a simple multiplexing strategy, eliminates the need for side information and makes the algorithm robust in the presence of network bit errors.<>

Published in:

Communications, Computers and Signal Processing, 1989. Conference Proceeding., IEEE Pacific Rim Conference on

Date of Conference:

1-2 June 1989

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.