[LAU] Diagnosing JACK

David Jones gnome at hawaii.rr.com
Tue Oct 13 18:24:03 UTC 2015




On Oct 13, 2015 02:05, Paul Davis <paul at linuxaudiosystems.com> wrote:
>
> On Mon, Oct 12, 2015 at 11:21 PM, david <gnome at hawaii.rr.com> wrote: 
> > 
> > Except that Audacious refuses to play a media file if that file is a 
> > different bitrate than JACK's default 48K. 
> > 
> > Same version of Audacious works fine on my laptop - which doesn't have Pulse 
> > installed at all. 
> > 
> > Just one of the great mysteries of life. 
>
> it isn't a mystery at all. Clients can't change the SR of JACK as part 
> of their normal connection process, so unless coded to explicitly 
> change the SR (which is generally a big no-no), audacious discovers 
> JACK @ 48kHz, notes the SR of the audio file as something else, 
> remembers that it cannot resample, and gives up. 
>
> When used without JACK (or Pulse), audacious opens the ALSA device 
> directly and sets the SR to the SR of the audio file as part of that 
> process. 

Except that the system on which Audacious happily plays ANY file regardless of SR is the one using ONLY JACK, without Pulse, and Audacious is playing thru JACK, not ALSA.

Like I said, a mystery.

David W. Jones
gnome at hawaii.rr.com
authenticity, honesty, community
http://dancingtreefrog.com


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