44 lines
1.1 KiB
Python
44 lines
1.1 KiB
Python
import numpy as np
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import sounddevice as sd
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from Note import Note
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import os
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import sys
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import time
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FS = 44100
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def play(args, env):
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if len(args) > 0 and isinstance(args[0], list):
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playList(args[0], env)
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return
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playList(args, env)
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def playList(notes, env):
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bpm = env.findVariable("bpm", int)
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if all(isinstance(x, Note) or isinstance(x, int) for x in notes):
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for x in notes:
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if isinstance(x, Note):
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playNote(x, bpm)
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if isinstance(x, int):
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doPause(x, bpm)
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def playNote(note, bpm):
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frequency = note.toFrequency()
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duration = 60 * 4 / note.duration / bpm
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duration *= 1.5 if note.dot else 1
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sine(frequency, duration)
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def sine(frequency, duration):
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samples = (np.sin(2*np.pi*np.arange(FS*duration)*frequency/FS)).astype(np.float32)
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sd.play(samples, FS)
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time.sleep(duration)
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def doPause(value, bpm):
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time.sleep(60 * 4 / value / bpm)
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def pause(args, env):
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bpm = env.findVariable("bpm")
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value = args[0]
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doPause(value, bpm)
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