[MEncoder-users] audio-density option

[Dominik 'Rathann' Mierzejewski]

On Tuesday, 30 January 2007 at 22:48, Ben Staz wrote:
> Hi, I will first quote from the mencoder manual.
> 
> -audio-density <1-50>
>              Number of audio chunks per second (default is 2  for  0.5s
> long
>              audio chunks).
>              NOTE: CBR only, VBR ignores this as it puts each packet in a
> new
>              chunk.
> 
> I am wondering what is the best setting to use when using mencoder to create
> an XviD avi with AC3 audio.
> 
> Lets say the source is a PAL DVD (25 fps)
> 
> Then the audio density default would be, 2 chunks per 25 frames (second).
> 
> 
> I have heard that interleaving settings for AC3 is best at 1 chunk per 2 or
> 3 frames.
> 
> So : 25/2 = 12.5 chunks a second
> Or : 25/3 = 8.33 chunks per second.
> 
> These figures are a lot larger than the default.
> What do you guys recommend?

I think the docs recommend 12.

Regards,
R.

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