[linux-audio-dev] Re: simple jack-client [jack-net-cat]

[Apostolos Dimitromanolakis]

  I would ask the following question..  Since syncing two different 
cards is a problem due to clock inaccuracy, why don't we just add a 
sample or two to the fastest card every so when the cards become out of 
sync. This would mean probably duplicating (or interpolating) a single 
sample on the fastest card to slow it down. It will be completely 
inaudible. The frequency this happens shold be every 20-30 seconds, 
after doing some calculation with 44100 sampling rate, 64x oversampling 
and 5 PPM (point per million accurate crystals).


Florian Schmidt wrote:

>On Thu, 27 Nov 2003 10:24:38 +0000
>vanDongen/Gilcher <gml at xs4all.nl> wrote:
>
>  
>
>>Have you seen this:
>>
>>http://gsd.ime.usp.br/~lago/masters/
>>
>>It is a networked LADSPA plugin. Maybe it could be made into a jack
>>system. What would be nice is to have something like your net client
>>on one computer, and a network jackdriver running the jackgraph on a
>>different computer. You do get one period extra latency between the
>>two graphs.
>>    
>>
>
>Yes,this would also solve the issue that two jacks on different
>computers use a different sample clock and of course drift becomes a
>problem over time.
>
>If the network jackdriver running the jackgraph on the second machine is
>not sample synced to a soundcard but is rather in some sort of
>freewheeling mode, processing as fast as it can, then this wold not be
>an issue.
>
>
>  
>