midi

I've been trying to solve a mystery sinewave issue with little success. I'm starting a new question here as I think I have dug into the specifics of this problem. When setting up an AKSequencer, and feeding it a MIDI file, I'm seeing some strange results. For a 4 track song (with a corresponding 4 track midi file, duration matching all stems of the song), I'm seeing that the sequencer is actually generated with 5 tracks. What is the extra track? Also, I'm getting an error in the console: [seq] 1026: Invalid beat range which I believe happens when the track is empty. So this looks like the

I'm having trouble setting the instrument in the javax.sound.midi package. Synthesizer synthesizer = MidiSystem.getSynthesizer(); MidiChannel[] channels = synthesizer.getChannels(); channels[0].programChange(5); System.out.println(channels[0].getProgram()); From the documentation on MidiChannel, calls to channels[0].programChange(int) should change instrument that the MidiChannel is set to and immediately reflected in channels[0].getProgram(). However my program prints "0", indicating nothing has changed. Later on in the code, I'm using MidiChannel.getSequencer() to play midi sound

I have created a soundfont with Polyphone to create a new instrument "bagana". It just has 1 instrument "Bagana", with 1 present "Bagana". I tried playing a midi file (just a piano piece) with FluidSynth, it worked. When I direct it through the new soundfront it says: fluidsynth: warning: No preset found on channel 9 [bank=128 prog=0] Is there a problem with the soundfont not being loaded? This is the sf2 file and this and this are the midi files I am trying to play. I am running the midi with this command: >>fluidsynth -C0 -R1 -l -a alsa -F out.wav ./bagana.sf2 /home/dorien/UA/projects/bagana

I want to parse an already existing .mid file, change its instrument, from 'acoustic grand piano' to 'violin' for example, and save it back or as another .mid file. From what I saw in the documentation, the instrument gets altered with a program_change or patch_change directive but I cannot find any library that does this in MIDI files that exist already. They all seem to support it only MIDI files created from scratch. Michael Scott Cuthbert Use the music21 library (plugging my own system, hope that's okay). If there are patches defined in the parts, do: from music21 import converter

I'd like to listen to the port having my midi output device (a piano) with my RPi, running on Debian. I've looked into pygame.midi, I managed to listen to the port, but somehow can not extract all midi information. Please find code below [edited code snippet] EDIT: Fixed, thanks a lot! First of all you need to find out which device-id your keyboard has inside pygame. I wrote this little function to find out: import pygame.midi def print_devices(): for n in range(pygame.midi.get_count()): print (n,pygame.midi.get_device_info(n)) if __name__ == '__main__': pygame.midi.init() print_devices() It

I'm having some trouble playing MIDI files in Java. What I get is a MidiUnavailableException (MIDI OUT transmitter not available) when I try to play it. My code is standard: try { midiseq = MidiSystem.getSequencer(); midiseq.open(); midiseq.setSequence(MidiSystem.getSequence(sound1)); midiseq.setLoopCount(Sequencer.LOOP_CONTINUOUSLY); midiseq.start(); } catch (Exception e) {e.printStackTrace();} midiseq is a Sequencer ; sound1 is an InputStream . This code works on several other computers, and even works in Eclipse and when used in a JAR file, just not when I launch it from the command prompt.