Gustin Johnson wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Ralf Mardorf wrote: > >> Introduction >> >> I'll hand a report about the actually MIDI jitter in later. Here I >> argued why it's quixotic to ignore some issues for some suggestions, how >> to work with Linux for a mix of natural instruments, internal MIDI >> instruments and external MIDI instruments. Alternatively I recommend to >> take care about and feature some functions for Linux MIDI sequencers. >> >> > Do you have any kind of test so that others can replicate your timing > issues? I am also curious about your testing methodology (how are you > measuring the jitter). Your numbers are useless without us being able > to replicate them. > > I have a physical synth that I can test with (ie. midi in to the synth, > analogue audio out from the synth). Right now my rig is in pieces as I > shuffle hardware around and get rid of unnecessary gear. I should be > able to test in a couple of weeks. > > Also, I have never used the irqtuning script. The only computer I have > had that I needed to tweak was ultimately not suitable to be running > Linux, which is why I got rid of it. To simplify testing, I would keep > your system as close to stock as possible, otherwise weird timing issues > will be nearly impossible to track down. >
Hi Gustin :) I'll do a test, 4 to the floor by a soundfont that can be downloaded for free from the internet and than record it and I also will send the same 4 to the floor to an external drum module. Instead of the Alesis D4 I'll use a Yamaha RX 21 as external Drum sample player next time (I guess the kick isn't at C, so I will transpose the note only for it's MIDI track). I'll TAR the whole Qtractor folder with this test and upload it and hand in the link. I guess I can do it tonight, but I'm not sure. Qtractor, the FluidSynth-DSSI and Audacity will use /mnt/music as path, so you only need to make a link in /mnt to the place were it will be on your machine and change the connections to fit to your hardware. I open recordings by Audacity, to see at what times the events are. To be continued. Best, Ralf -- http://www.dailywav.com/1002/beginning.wav _______________________________________________ 64studio-users mailing list [email protected] http://lists.64studio.com/mailman/listinfo/64studio-users
