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Re: [fluid-dev] What is the best way start fluidsynth with zero/low late
Re: [fluid-dev] What is the best way start fluidsynth with zero/low latency?
Thu, 21 May 2009 06:03:47 +0200
Thunderbird 18.104.22.168 (X11/20090409)
Louis B. skrev:
> Hi all,
> I am the developer of Piano Booster and I have written some
> instructions on how to start fluidsynth see this link.
> However I cannot get fluidsynth to run with zero/low latency. I
> estimated the latency delay is about 100msec. I can hear a delay
> when I play on the Piano which is always a bad sign. I do not get a
> noticeable delay when I play using an external synth. See this link
> for more info on my set-up.
> Please tell me what I have to do to get fluidsynth to run as close to
> real time as possible so that I can improve the instructions on the
> PianoBooster web site.
The recent Ubuntu versions will try to route things through pulseaudio,
which introduces some latency. I would suggest you add the following
-a alsa -o audio.alsa.device=hw:0
Selecting the right alsa device could be a jungle for the novice, but
shortly: where "hw:0" is the suggested sound output, it is "hw:0" for
your first soundcard, "hw:1" for your second etc. If that fails with a
message "could not find a suitable audio format", you can try "plughw:0"
instead of "hw:0", although that will increase the CPU consumption a bit.
Re: [fluid-dev] What is the best way start fluidsynth with zero/low latency?, Pedro Lopez-Cabanillas, 2009/05/21