AC3 encoded output
AC3 encoded output
- Subject: AC3 encoded output
- From: Stéphane Beauchemin <email@hidden>
- Date: Wed, 13 May 2009 17:00:08 -0400
Hi Everyone,
We have an application that supports stereo and surround (5.1) setup. Most of the mac hardware (if not all) have digital output. It seems that there is no way to output AC-3 encoded audio to the digital out with core audio. I have done quite a bit of research and it seems that we would have to implement the AC3 encoder ourself.
We know that we can set the speaker config in "Audio Midi Setup" to 5.1 surround, but it assumed that the sound card has 6 discrete channel. This is only available on the pro audio soundcards.
Our data, is 32 bit PCM float. With a DVD stream poeple just implement a passthrought... but here it is not the case. We need to generate AC3 data at run-time. Any suggestions?
Thank you,
Stephane
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