[mythtv-users] Audio upmixing in 0.22

Jean-Yves Avenard jyavenard at gmail.com
Sun Nov 1 15:44:38 UTC 2009

2009/11/2 ken <dinoshifty at mailshack.com>:
> I have just noticed the ability in 0.22 to upmix stereo to 5.1 ac3 audio.
> The question I would like to ask is what method does mythtv use to upmix to
> 5.1 ie: does it use dolby pro logic or similar and are there any advantages
> to letting mythtv upmix the audio rather than feeding stereo to a AV
> amplifier and letting the amplifiers dolby pro logic proccesing etc decode
> to 5.1.
This option isn't in 0.22 but in trunk (0.23).

The upmixer uses libmythfreesurround ; and can decode prologic.

The advantage is that you don't have to constantly change mode on your

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