[chuck-users] Problem: chuck --silent --srateXXXXX not timing correctly

Spencer Salazar spencer at ccrma.stanford.edu
Fri Jun 13 07:28:40 EDT 2014

Hi Ryan,

--silent mode is mostly designed for offline rendering, so it basically
runs as fast as possible. There isn't currently a way to have it run in
real-time without also having audio, though that sounds like a nice

Im surprised that you are finding it difficult to get real-time sound
working with chuck on RPi. With e.g. Satellite CCRMA [1], its mostly a
matter of installing the asound2-dev package and maybe libpulse-dev and
compiling chuck as usual.


[1] https://ccrma.stanford.edu/~eberdahl/satellite/

On Thu, Jun 5, 2014 at 10:02 AM, Ryan Supak <ryansupak at gmail.com> wrote:

> Hi, I'm running the latest version of chuck on OSX 10.6.9.
> I've got a program that doesn't process audio, but it does take MIDI input
> in realtime and it outputs various kinds of synchronization signals based
> on it.
> I originally tried running it with just the --silent flag but chuck was
> 'saying' that time durations were way shorter than they were. I attempted
> the same thing without the --silent flag (defaulting to onboard soundcard)
> and time durations were accurate. Then, I tried using both the --silent and
> --srate44100 flags to see if that would help, but it behaved just as it did
> with the --silent flag.
> The ultimate goal is to install this program on a Raspberry Pi without
> using sound at all (and chuck on RPi freaks out unless you install a bunch
> of other stuff, if you try to run it without the --silent flag).
> Anyway, is there a method or trick to make the combined usage of --silent
> and --srateXXXXX properly measure duration in realtime use?
> Thanks for any help!
> rs
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