46 lines
856 B
Python
Executable File
46 lines
856 B
Python
Executable File
#!/usr/bin/env python3
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import subprocess
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import math
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# https://en.wikipedia.org/wiki/Piano_key_frequencies
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def note_freq(n):
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return math.pow(2, (n - 49) / 12) * 440
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def gen_beep_command(notes, bpm):
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cmd = ['beep']
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for i, (n, d) in enumerate(notes):
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f = note_freq(n)
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ms = (d / (bpm/60)) * 1000
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cmd += ['-f', str(int(f)), '-l', str(int(ms))]
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if i != len(notes) -1:
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cmd.append('-n')
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return cmd
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# First 2 bars of https://musescore.com/user/5032516/scores/6519100 ;)
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tempo = 94
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melody = [
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(52, 1/2),
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(55, 1/2),
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(57, 1/2),
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(58, 1/2),
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(57, 1/2),
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(55, 1/2),
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(52, 1+1/2),
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(50, 1/4),
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(54, 1/4),
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(52, 1),
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]
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def main():
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cmd = gen_beep_command(melody, tempo)
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# print(' '.join(cmd))
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subprocess.check_call(cmd)
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if __name__ == '__main__':
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main() |