Re: [Jack-Devel] half bitrate double speed playback

Thanks Chris for the help,

mplayer runs at double speed, so as to fill the sample 'gap'.

mplayer seems to understand the following arguments:

-srate 22050 -af lavcresample=22050

The documentation states both -srate and -af have to be present .. I am
not quiet sure, that I understand this: what is the srate argument on
its own standing for? It should imply the resampling, or not?


Regards,
Mario


On Mon, 24 Feb 2014 13:29:20 -0600
"Chris Caudle" <[hidden]> wrote:

> On Mon, February 24, 2014 11:02 am, Mario Premke wrote:
> > When I start jackd -d net -b 22005 and the slave as well
> ...
> > When I now start mplayer on the master and redirect the audio to the
> > jack slave the video runs at double speed ..
> 
> Double speed, or half speed?  I would expect mplayer to run at half
> speed if mplayer was attempting to play a file with 44100 (or 48000)
> audio at 22005 and mplayer was not aware of the correct sample rate.
> Something will have to perform sample rate conversion on the audio,
> either mplayer if it can, or a component inserted between mplayer and
> jack. Probably making mplayer perform the sample rate conversion
> itself is the only practical way to do it.
> 

1393332148.32369_0.ltw:2,a <20140225134430.03bcbc7d at AC100 dot premke dot net>