Bluetooth enabled devices that stream audio are becoming increasingly popular. The expectation has advanced from the link being a simple cable replacement. Additional features such as acoustic echo canceller, noise removal, automatic gain compensation and music codecs are key components of the audio processing system. However, enhancing audio using a low MIPS, small memory processor is very difficult. Furthermore, the handling of irregular data over a wireless link causes additional problems. A summary of the challenges faced using wireless audio connections over Bluetooth is presented along with a description of the algorithms used to improve the audio at both ends of a link.
Author:
Spittle, Gary
Affiliation:
CSR Ltd.
AES Conference:
UK 23rd Conference: Music Everywhere (April 2008)
Paper Number:
17
Publication Date:
April 9, 2008
Subject:
Audio networking
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