mirror of
https://github.com/w-okada/voice-changer.git
synced 2025-01-24 05:55:01 +03:00
50 lines
1.6 KiB
Python
50 lines
1.6 KiB
Python
import pyworld
|
|
import numpy as np
|
|
from const import PitchExtractorType
|
|
|
|
from voice_changer.RVC.pitchExtractor.PitchExtractor import PitchExtractor
|
|
|
|
|
|
class DioPitchExtractor(PitchExtractor):
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
self.pitchExtractorType: PitchExtractorType = "dio"
|
|
|
|
def extract(self, audio, pitchf, f0_up_key, sr, window, silence_front=0):
|
|
audio = audio.detach().cpu().numpy()
|
|
n_frames = int(len(audio) // window) + 1 # NOQA
|
|
start_frame = int(silence_front * sr / window)
|
|
real_silence_front = start_frame * window / sr
|
|
|
|
silence_front_offset = max(min(int(np.round(real_silence_front * sr)), len(audio) - 3000), 0)
|
|
audio = audio[silence_front_offset:]
|
|
|
|
f0_min = 50
|
|
f0_max = 1100
|
|
f0_mel_min = 1127 * np.log(1 + f0_min / 700)
|
|
f0_mel_max = 1127 * np.log(1 + f0_max / 700)
|
|
|
|
_f0, t = pyworld.dio(
|
|
audio.astype(np.double),
|
|
sr,
|
|
f0_floor=f0_min,
|
|
f0_ceil=f0_max,
|
|
channels_in_octave=2,
|
|
frame_period=10,
|
|
)
|
|
f0 = pyworld.stonemask(audio.astype(np.double), _f0, t, sr)
|
|
|
|
f0 *= pow(2, f0_up_key / 12)
|
|
pitchf[-f0.shape[0]:] = f0[:pitchf.shape[0]]
|
|
f0bak = pitchf.copy()
|
|
f0_mel = 1127 * np.log(1 + f0bak / 700)
|
|
f0_mel[f0_mel > 0] = (f0_mel[f0_mel > 0] - f0_mel_min) * 254 / (
|
|
f0_mel_max - f0_mel_min
|
|
) + 1
|
|
f0_mel[f0_mel <= 1] = 1
|
|
f0_mel[f0_mel > 255] = 255
|
|
pitch_coarse = np.rint(f0_mel).astype(int)
|
|
|
|
return pitch_coarse, pitchf
|