127 lines
4.3 KiB
Python
127 lines
4.3 KiB
Python
#!/usr/bin/env python3
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# Copyright (C) 2022 harrysentonbury
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# GNU General Public License v3.0
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from audio2numpy import open_audio
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import numpy as np
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import sounddevice as sd
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import scipy.io.wavfile as wf
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import thyaudio as ta
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class ThyDelayPhlaze():
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"""
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sound - 1d numpy array
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sample_rate - int, sample rate of sound array
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delay_time - float, a positive in seconds, default=0.2
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repeats - int, a positive number of delays, default=5
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decay - float, amount of decay of delay 1=no delay, default=2
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reverse - boolean, reverse the returned sound, default=False
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hanning - boolean, apply hanning_window to repeats, default=False
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!hanning applied to whole input array length.
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ramp - boolean, apply log ramp to input array, default=False
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wot - string, what happens to delayed sound, default="nothing"
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other options are "phlaze" or "randomer"
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"""
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def __init__(self, sound, sample_rate, delay_time=0.2, repeats=5, decay=2, reverse=False, hanning=False, ramp=False, wot=""):
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self.sound = sound
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self.sample_rate = sample_rate
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self.delay_time = delay_time
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self.repeats = repeats
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self.decay = decay
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self.reverse = reverse
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self.hanning = hanning
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self.ramp = ramp
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self.log_base = 7
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self.snd_size = np.size(self.sound, axis=0)
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self.wot = wot
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def phlazers(self, i):
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self.arr[i, i * self.blox:i * self.blox + self.snd_size] = (
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ta.ThyPhlazer(self.sound, sample_rate=self.sample_rate, loops=3,
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speed=0.1 + (i/2), depth=10 * i).phlaze() * 1 / (self.decay**i))
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def randomers(self, i):
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self.random = ta.ThyRandomAudioSlices(self.sound, window_size=2**13, flip=True)
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self.arr[i, i * self.blox:i * self.blox + self.snd_size] = self.random.chop_and_chuck()[:self.snd_size] * 1 / (self.decay**i)
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def delayer(self):
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self.sound = self.sound / np.max(np.abs(self.sound))
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if self.reverse:
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self.reverse = np.flip(self.reverse)
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self.blox = round(self.delay_time * self.sample_rate)
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self.sound = self.sound.reshape(self.snd_size,)
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self.arr = np.zeros((self.repeats, (self.snd_size) + self.blox * self.repeats))
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self.log_ramp = np.logspace(0, 1, self.snd_size, base=self.log_base) / self.log_base
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for i in range(0, self.repeats):
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if self.wot == "phlaze":
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if i > 0:
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self.phlazers(i)
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else:
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self.arr[i, i * self.blox:i * self.blox + self.snd_size] = (self.sound * 1 / (self.decay**i))
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elif self.wot == "randomer":
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if i > 0:
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self.randomers(i)
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else:
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self.arr[i, i * self.blox:i * self.blox + self.snd_size] = (self.sound * 1 / (self.decay**i))
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else:
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self.arr[i, i * self.blox:i * self.blox + self.snd_size] = (self.sound * 1 / (self.decay**i))
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if self.hanning:
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self.sound *= np.hanning(self.snd_size)
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if self.ramp and not self.hanning:
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self.sound *= self.log_ramp
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self.result = np.sum(self.arr, axis=0)
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self.result = self.result / np.max(np.abs(self.result))
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if self.reverse:
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self.result = np.flip(self.result)
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print(f"Return Shape: {np.shape(self.result)}")
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return self.result
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# Read input wav or mp3 file.
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path_to_file = "audio/cds_det2_ra122_a15.mp3"
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if path_to_file.endswith(".mp3"):
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sound, sample_rate = open_audio(path_to_file)
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sound = np.float64(sound)
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else:
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sample_rate, sound = wf.read(path_to_file)
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sound = np.float64(sound)
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# If stereo convert to mono
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try:
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sound = sound[:, 0] + sound[:, 1]
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print("stereo to MONO")
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except IndexError:
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print("MONO")
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print(f"In file shape: {sound.shape}")
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print(f"Samplerate: {sample_rate}")
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repeats = 30
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delay_time = 0.5 # 1.5 in that vid
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fade = 1
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flip = 0
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hanning = 0
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ramp = 0
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wot = "phlaze"
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end_result = ThyDelayPhlaze(sound, sample_rate=sample_rate, delay_time=delay_time,
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repeats=repeats, decay=fade, reverse=flip, hanning=hanning, ramp=ramp, wot=wot).delayer()
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#end_result = ta.ThyPhlazer(end_result, sample_rate, sweep=0, speed=0.01, phase=1, loops=3).phlaze()
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sd.play(end_result, sample_rate)
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sd.wait()
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