Email Address:
Password:

Lost your password?

This is the legacy website; please use the new website.

Digital Radio Is Coming, Pt.2

Digital Radio broadcasts will use Advanced Audio Coding (AAC+) of the digital audio signals. AAC+ is a complex compression process which greatly reduces the amount of RF bandwidth and transmission power necessary to broadcast a high quality signal.

by Alan Hughes

When we introduced Digital Radio last month, we explained how this completely new technology will commence in Australia in just a few weeks.

The panel below summarises what is required to broadcast high quality audio signals. Analog hifi systems and uncompressed digital systems (eg, compact disc) aim to produce a close replica of the original sound but this uses wide bandwidth and can require high transmission power.

The AAC+ compression process aims to transmit what your ears and brain perceive but employs much reduced bandwidth and transmission power.

Click for larger image

Share this Article: 

Privacy Policy  |  Advertise  |  Contact Us

Copyright © 1996-2018 Silicon Chip Publications Pty Ltd All Rights Reserved