[LAD] 9 soundcards ?
fons at linuxaudio.org
Mon Feb 24 21:26:41 CET 2020
On Mon, Feb 24, 2020 at 10:14:01AM -0800, Len Ovens wrote:
> On Mon, 24 Feb 2020, Manuel Haible wrote:
> > >> So low latency is important but sample accuracy not so much.
> > The time-shift of sample-streams would be different on each start up, right?
> Yes, It depends on how long it takes the bridge to start up and when it gets
> started. If the setup is started by a script, it depends on system load
> pretty much.
(Assuming this is about zita-ajbridge)
No, zita-j2a and a2j measures the relative timing of Jack and Alsa periods
when starting up. With the -S option (no resampling, assuming word clock
sync), this is a single observation and there may be some remaining error.
With resampling (no -S) the added latency will converge to a defined value,
with only some jitter around this remaining.
> > Would it be a good idea to apply an aliasing-filter before feeding the
> > zita-resampler?
Indeed no, the anti-aliasing filter is part of the resampling process.
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