Maybe using OSC control would be faster in this case ? Stéphane
> Le 3 janv. 2023 à 19:25, Aaron Heller <ajhel...@gmail.com> a écrit : > > Hi Stephane, > Sorry, it's 10ms to update a parameter... math error on my part. > > As I said, it takes about 30 seconds to update a Faust jack client with 3136 > (=49*64) parameters, which is roughly 10 ms per parameter. This was with > jack, the jack client written in Faust, and the Python script performing the > update, all running on my MacBook Pro. There are two versions of the Python, > one that opens a new connection for each update and one that keeps the > connection open; the timing for both is the same. I also tried it with jack > and the Faust jaxk client running on a RPi4 and the Python running on my MBP, > with the same ~10ms/update result. > > The 49x64 parameter matrix corresponds to playing sixth-order ambisonics over > a 64 speaker array, which is the situation at the Stage at CCRMA. The > decoder has two matrices, high and low frequencies, so about a minute to > update. I'm looking for a solution that would be at least 10x faster. > > Thanks... > > Aaron > > On Tue, Jan 3, 2023 at 12:44 AM Stéphane Letz <l...@grame.fr> wrote: > How do you measure this « 100 ms to update » delay? > > Stéphane > > > Le 3 janv. 2023 à 02:12, Aaron Heller <ajhel...@gmail.com> a écrit : > > > > As a warmup exercise for the next version of my ambisonic decoder engine, I > > made a matrix mixer in Faust and compiled it with httpd support. You can > > see the code and the Python program I wrote to control it in the repo --- > > mmd.dsp and mmd_control.py, respectively: > > https://bitbucket.org/ambidecodertoolbox/adt_evaluation/src/AES153/faust/ > > > > It looks like it takes ~100 ms to update a single entry, so I assume it's > > processing one request per slow-time loop. In my application, these > > matrices could have thousands of entries, so, for example, a 49x64 matrix > > takes over 30 seconds to update. Is there a way to speed this up? Are > > there better ways to update the coefficients of an array? Over the network > > is convenient, but loading from a local file would be fine too. > > > > Thanks... > > > > Aaron Heller > > Menlo Park, CA US > > > > _______________________________________________ > > Faudiostream-users mailing list > > Faudiostream-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/faudiostream-users > _______________________________________________ Faudiostream-users mailing list Faudiostream-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/faudiostream-users
