On Wed, Jan 30, 2013 at 2:45 PM, Nils Gey <ich@xxxxxxxxxx> wrote: > On Wed, 30 Jan 2013 08:19:56 -1000 > Joel Roth <joelz@xxxxxxxxx> wrote: > >> On Wed, Jan 30, 2013 at 03:47:17PM +0100, Nils Gey wrote: >> > Hi, >> > >> > tl;dr: is there a command line tool where I can give several midi files, and a jack input port for each, and it plays them back in sync? >> >> Do the separate audio streams created by this process >> ever get mixed together? >> >> If so, is there a reason for the mixing to happen under >> JACK, rather than within midi, where command line sequencer >> such as midish can do the job? >> Joel > > > Yes, there is a reason. Midi only knows 16 channels and also one port. > If you have 4 midi files, each with 16 channels and each to another port (one for linuxsampler, one for fluidsynth, one for zynaddsubfy and one for aelous) you can't mix the midi anymore. > > If there was a super-midi (jackmidi .jmid :) ?) format with unlimited channels and several ports per file and a player for that format you could think about mixing it before hand. > But if such a format would exist I would export directly to it instead of standard midi anyway. > There is a MIDI port sequence defined for SMFs. <FF 21 01 pp> which is supposed to come at the start of a track. It specifies which port on the computer the track is to be sent to. I've never tired using this and don't even know if the alsa sequencer code supports it. Might be worth looking at ... much easier than trying to sync 4 instances of a player! -- **** Listen to my CD at http://www.mellowood.ca/music/cedars **** Bob van der Poel ** Wynndel, British Columbia, CANADA ** EMAIL: bob@xxxxxxxxxxxx WWW: http://www.mellowood.ca _______________________________________________ Linux-audio-user mailing list Linux-audio-user@xxxxxxxxxxxxxxxxxxxx http://lists.linuxaudio.org/listinfo/linux-audio-user
