Created
July 19, 2024 09:17
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Play twinkle song
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| import math | |
| import sounddevice as sd | |
| def frequency(base_freq, semitones): | |
| return base_freq * (2 ** (semitones / 12)) | |
| DO = 440 | |
| RE = frequency(DO, 2) | |
| MI = frequency(DO, 4) | |
| FA = frequency(DO, 5) | |
| SO = frequency(DO, 7) | |
| LA = frequency(DO, 9) | |
| SI = frequency(DO, 11) | |
| twinkle_song = """ | |
| 1 1 5 5 6 6 5 - | |
| 4 4 3 3 2 2 1 - | |
| 5 5 4 4 3 3 2 - | |
| 5 5 4 4 3 3 2 - | |
| 1 1 5 5 6 6 5 - | |
| 4 4 3 3 2 2 1 - | |
| """ | |
| numbers_to_tones = { | |
| '1': DO, | |
| '2': RE, | |
| '3': MI, | |
| '4': FA, | |
| '5': SO, | |
| '6': LA, | |
| '7': SI, | |
| } | |
| def f(x): | |
| return math.sin(x * 2 * math.pi) * .1 | |
| def data(fr, sr, d): | |
| return [f(x / sr * fr) for x in range(math.floor(sr * d))] | |
| for line in twinkle_song.split('\n'): | |
| tones = line.split(' ') | |
| for i in range(len(tones)): | |
| if not tones[i] or tones[i] == '-': | |
| continue | |
| if i == len(tones) - 2: | |
| wave = data(numbers_to_tones[tones[i]], 1e4, 1.2) | |
| else: | |
| wave = data(numbers_to_tones[tones[i]], 1e4, .6) | |
| sd.play(wave, 1e4, blocking=True) |
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