[mythtv-users] 0.23-1 vs 0.24 audio question

Tom Dexter digitalaudiorock at gmail.com
Sun Apr 17 13:56:50 UTC 2011


On Sat, Apr 16, 2011 at 7:24 PM, Jean-Yves Avenard <jyavenard at gmail.com> wrote:
> Hi
>
> On 17 April 2011 06:19, Tom Dexter <digitalaudiorock at gmail.com> wrote:
>> I record entirely OTA HD (New York stations).  Almost all my
>> recordings tend to show two audio tracks: English AC3 2 channel, and
>> Spanish Castillian AC3 2 channel.  The Spanish track is never actually
>> Spanish, but rather another English track.  Oddly enough however, it's
>> usually a bit louder seems to have the dialog more upfront.   Often I
>> actually use that because it's easier to hear dialog.
>
> It could just be the track alone.
>
> There's an issue in ffmpeg in that it doesn't keep the volume level if
> it downmix for example. This was modified in mythtv so it uses its own
> code to do it, which preserve audio levels.
>
> But this would be seen if watching 5.1 content on a stereo system.

I don't have a surround system and use the speakers in my TV.  I've
always suspected that the odd levels were related to the 5.1 being
played in stereo.  Good to know that's changed.

Tom


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