def midiwrite(filename, piano_roll, r=(21, 109), dt=0.2, patch=0):
midi = MidiOutFile(filename)
midi.header(division=100)
midi.start_of_track()
midi.patch_change(channel=0, patch=patch)
t = 0
samples = [i.nonzero()[0] + r[0] for i in piano_roll]
for i in xrange(len(samples)):
for f in samples[i]:
if i==0 or f not in samples[i-1]:
midi.update_time(t)
midi.note_on(channel=0, note=f, velocity=90)
t = 0
t += int(dt*200)
for f in samples[i]:
if i==len(samples)-1 or f not in samples[i+1]:
midi.update_time(t)
midi.note_off(channel=0, note=f, velocity=0)
t = 0
midi.update_time(0)
midi.end_of_track()
midi.eof()
def midiwrite(filename, piano_roll, r=(21, 109), dt=32, patch=0):
midi = MidiOutFile(filename)
midi.header(division=128)
midi.start_of_track()
midi.patch_change(channel=0, patch=patch)
t = 0
samples = [i.nonzero()[0] + r[0] for i in piano_roll]
for i in xrange(len(samples)):
for f in samples[i]:
if (i==0
or f not in samples[i-1]
or i%4 == 0):
midi.update_time(t)
midi.note_on(channel=0, note=f, velocity=90)
t = 0
t += int(dt)
for f in samples[i]:
if (i==len(samples)-1
or f not in samples[i+1]
or i%4 == 3):
midi.update_time(t)
midi.note_off(channel=0, note=f, velocity=0)
t = 0
midi.update_time(0)
midi.end_of_track()
midi.eof()
all the midi events are in the same track. """ out_file = '../minimal_type0.mid' midi = MidiOutFile(out_file) # non optional midi framework midi.header(format=1) midi.start_of_track() # musical events import ipdb;ipdb.set_trace() midi.update_time(10) midi.note_on(channel=0, note=0x40) midi.update_time(0) midi.note_on(channel=0, note=0x41) midi.update_time(192) midi.note_off(channel=0, note=0x40) midi.update_time(0) midi.note_off(channel=0, note=0x41) midi.update_time(0) midi.note_off(channel=0, note=0x42) midi.update_time(0) midi.note_off(channel=0, note=0x43) midi.update_time(0) midi.note_off(channel=0, note=0x44) midi.update_time(0) midi.note_off(channel=0, note=0x45)
def note_on(self, channel=0, note=0x40, velocity=0x40):
note = self._transp(channel, note)
MidiOutFile.note_on(self, channel, note, velocity)
self.notes[note] = 0 event_handler = NoteOnPrinter() in_file = 'test.mid' out_file = 'test.mid' midi = MidiOutFile(out_file) # non optional midi framework midi.header(division=96) midi.start_of_track() # musical events midi.tempo(60000000 / 60) midi.update_time(0) midi.note_on(channel=0, note=69) midi.update_time(96) midi.note_on(channel=0, note=73) midi.update_time(96) midi.note_off(channel=0, note=69) midi.update_time(96) midi.note_off(channel=0, note=73) # non optional midi framework midi.update_time(0) midi.end_of_track() # not optional! midi.eof() midi_in = MidiInFile(event_handler, in_file) midi_in.read()
event_handler = NoteOnPrinter() in_file = 'test.mid' out_file = 'test.mid' midi = MidiOutFile(out_file) # non optional midi framework midi.header(division=96) midi.start_of_track() # musical events midi.tempo(60000000/60) midi.update_time(0) midi.note_on(channel=0, note=69) midi.update_time(96) midi.note_on(channel=0, note=73) midi.update_time(96) midi.note_off(channel=0, note=69) midi.update_time(96) midi.note_off(channel=0, note=73) # non optional midi framework midi.update_time(0) midi.end_of_track() # not optional! midi.eof() midi_in = MidiInFile(event_handler, in_file)
def note_on(self, channel=0, note=0x40, velocity=0x40):
note = self._transp(channel, note)
MidiOutFile.note_on(self, channel, note, velocity)
from MidiOutFile import MidiOutFile """ This is an example of the smallest possible type 0 midi file, where all the midi events are in the same track. """ out_file = 'midiout/minimal_type0.mid' midi = MidiOutFile(out_file) # non optional midi framework midi.header() midi.start_of_track() # musical events midi.update_time(0) midi.note_on(channel=0, note=0x40) midi.update_time(192) midi.note_off(channel=0, note=0x40) # non optional midi framework midi.update_time(0) midi.end_of_track() midi.eof()
"""
This is an example of the smallest possible type 0 midi file, where
all the midi events are in the same track.
"""
out_file = '../prueba.mid'
ntracks= 3
midi = MidiOutFile(out_file)
# non optional midi framework
midi.header(format= 1, nTracks=ntracks)
# musical events
#import ipdb;ipdb.set_trace()
for i in xrange(0,ntracks):
midi.start_of_track(i)
#midi.continuous_controller(i,RESET_ALL_CONTROLLERS,0x01)
#midi.continuous_controller(i,CHANNEL_VOLUME,0x32)
midi.update_time(192*i)
midi.note_on(channel=i, note=0x40)
midi.update_time(192*(i+1))
midi.note_off(channel=i, note=0x40)
#midi.update_time(0)
midi.end_of_track()
midi.eof()
def note_on(self, channel=0, note=0x40, velocity=0x40):
#note = self._transp(channel, note)
note = self.reduct_note(channel, note)
velocity = self.reduct_velocity(channel, velocity)
MidiOutFile.note_on(self, channel, note, velocity)
