def playnotes(namesOrNotes=['C3', 'E3', 'G3', 'C4'], length=2.0, delay=0.05, volume=0.25): ''' Plays the notes passed in on the digitar (digital-guitar). Parameters: namesOrNotes: Represents the notes to be played in one of these - 1 - a string naming a note, like 'C3', 'D#4', or 'Bb2', 2 - a list of strings naming the notes as above, 3 - a Note instance, or 4 - a list of Note instances. Defaults to ['C3', 'E3', 'G3', 'C4'] - it's a nice sounding chord. length: If not using Note instance(s), defines how long each note will be held for, in seconds. Defaults to 2.0 seconds. delay: If a list of strings is passed in, defines how many seconds to wait before each additional note is started. Defaults to 0.05 seconds. volume: If not using Note instance(s), defines how loudly the notes will be played. Defaults to 0.25. ''' if isinstance(length, str): raise Exception( "If you want to play multiple notes, wrap them in [] like playnotes(['C3', 'E3'])" ) elif isinstance(length, Note): raise Exception( "If you want to play multiple notes, wrap them in [] like playnotes([note1, note2])" ) if isinstance(namesOrNotes, str): namesOrNotes = [Note(namesOrNotes, length, delay, volume)] elif isinstance(namesOrNotes, Note): namesOrNotes = [namesOrNotes] elif isinstance(namesOrNotes[0], str): namesOrNotes = [ Note(name, length, delay * index, volume) for index, name in enumerate(namesOrNotes) ] # Render all the notes. fullLength = 0.0 sampleRate = 44100 for note in namesOrNotes: fullLength = max(fullLength, note.length + note.delay) out = source.silence(fullLength + 0.1) # Pad it a bit so I stop getting errors... #print('fullLength: {} silence samples: {}'.format(fullLength, len(out))) for note in namesOrNotes: firstSample = int(note.delay * sampleRate) #print('delay: {} first sample: {}'.format(note.delay, firstSample)) data = note.render() #print('delay: {} first sample: {} data size: {}'.format(note.delay, firstSample, len(data))) out[firstSample:firstSample + len(data)] += data playback.play(out)
def render(self): # Return timeline as audio array by rendering the hits out = source.silence(self.calculate_length()) for time, hits in self.hits.items(): index = int(time * self.rate) for hit in hits: data = hit.render() out[index:index + len(data)] += data return out
def render(self): # Return timeline as audio array by rendering the hits out = source.silence(self.calculate_length()) for time, hits in self.hits.items(): index = int(time * self.rate) for hit in hits: data = hit.render() out[index:index + len(data)] += data return out