Haunted gramophone

haunted_gramophone.py

from pydub import AudioSegment
from pydub.playback import play
from pydub.generators import WhiteNoise
import random

sound = AudioSegment.from_wav('src.wav')
audio_len = len(sound)
base_frame_rate = sound.frame_rate

glitched = AudioSegment.empty()
glitch_start, glitch_end = 0, 0
speed = sound.frame_rate
while glitch_start < audio_len:
    glitch_start = glitch_end
    coeff = 0.95 + 0.1 * random.random()
    glitch_end += coeff * 1000
    if glitch_end > audio_len:
        glitch_end = audio_len
    slice = sound[glitch_start:glitch_end]
    # Apply random speed up, slow down, or skipping
    speed = int(speed * coeff)
    
    if random.random() > 0.96:
        # Record skip, reset speed
        glitched += WhiteNoise().to_audio_segment(duration=10)
        speed = base_frame_rate

    print(glitch_start // 1000, '-', glitch_end // 1000, speed)
    slice = slice._spawn(slice.raw_data, overrides={'frame_rate': speed})
    slice.set_frame_rate(base_frame_rate) # Is this necessary?
    glitched += slice

glitched.export('glitched.wav', format='wav')
play(glitched)