Update:
I have found that setting the maximum number of voices to 1 seems to
eradicate the xruns completely! I hope this will be true for some higher
numbers of voices too. It was previously set to something like 60.
The non-xrun clicks are still present, every time I play a note before
another has died (including release time I think). I also get this error
message in Qsampler:
EngineBase: WARNING, CONFIG_EG_MIN_RELEASE_TIME too big for current audio
fragment size & sampling rate! May lead to click sounds if voice stealing
chimes in!
Which suggests my period size of 64 samples at 96kHz (0.67ms) is too low.
So I will look into decreasing CONFIG_EG_MIN_RELEASE_TIME and report back
when I find out how to. Any hints would be appreciated.
I think, if this works, then to stress test my setup properly I would need
some way to verify that the non-xrun clicks are really gone. Like some kind
of LinuxSampler click counter. Is there a way to do this?
On a side note, is there a way to run LinuxSampler in non-realtime mode, so
that very polyphonic pieces or possibly even Black MIDI could be rendered?
Please let me know if there's a better place to post this.
(~: Tom
On 24 January 2018 at 00:03, Thomas Howe <tho7maspeng...@gmail.com> wrote:
> Hi all, me again...
>
> Sometimes LinuxSampler's audio seems to glitch and cause xruns. Xruns
> aren't registered by patchage and xrun-logger each time.
>
> Is this a normal issue? I think it might be related to polyphony (it tends
> to occur when the sustain pedal is used in fast passages).
>
> I would imagine that pitch-shifting a lot of note samples at the same time
> and then playing them all would be a very intensive task and likely to
> cause audio glitches, but the processors don't max out or anything.
>
> Attached is a MIDI file (Liszt's 2nd Sonata in B Minor) which when played
> with the SalamanderGrandPianoV3Retuned instrument, gives me a lot of audio
> glitches.
>
> Also I'm using JACK2.
>
> Any advice still appreciated (:
>
> Tom
>
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