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import os
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import sys
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import numpy as np
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import pyworld
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import torchcrepe
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import torch
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import parselmouth
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import tqdm
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from multiprocessing import Process, cpu_count
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current_directory = os.getcwd()
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sys.path.append(current_directory)
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from rvc.lib.utils import load_audio
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exp_dir = sys.argv[1]
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f0_method = sys.argv[2]
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num_processes = cpu_count()
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try:
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hop_length = int(sys.argv[3])
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except ValueError:
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hop_length = 128
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DoFormant = False
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Quefrency = 1.0
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Timbre = 1.0
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class FeatureInput:
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def __init__(self, sample_rate=16000, hop_size=160):
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self.fs = sample_rate
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self.hop = hop_size
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self.f0_method_dict = self.get_f0_method_dict()
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self.f0_bin = 256
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self.f0_max = 1100.0
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self.f0_min = 50.0
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self.f0_mel_min = 1127 * np.log(1 + self.f0_min / 700)
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self.f0_mel_max = 1127 * np.log(1 + self.f0_max / 700)
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def mncrepe(self, method, x, p_len, hop_length):
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f0 = None
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torch_device_index = 0
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torch_device = (
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torch.device(f"cuda:{torch_device_index % torch.cuda.device_count()}")
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if torch.cuda.is_available()
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else (
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torch.device("mps")
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if torch.backends.mps.is_available()
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else torch.device("cpu")
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)
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)
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audio = torch.from_numpy(x.astype(np.float32)).to(torch_device, copy=True)
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audio /= torch.quantile(torch.abs(audio), 0.999)
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audio = torch.unsqueeze(audio, dim=0)
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if audio.ndim == 2 and audio.shape[0] > 1:
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audio = torch.mean(audio, dim=0, keepdim=True).detach()
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audio = audio.detach()
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if method == "crepe":
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pitch = torchcrepe.predict(
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audio,
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self.fs,
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hop_length,
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self.f0_min,
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self.f0_max,
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"full",
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batch_size=hop_length * 2,
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device=torch_device,
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pad=True,
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)
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p_len = p_len or x.shape[0] // hop_length
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source = np.array(pitch.squeeze(0).cpu().float().numpy())
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source[source < 0.001] = np.nan
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target = np.interp(
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np.arange(0, len(source) * p_len, len(source)) / p_len,
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np.arange(0, len(source)),
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source,
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)
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f0 = np.nan_to_num(target)
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return f0
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def get_pm(self, x, p_len):
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f0 = (
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parselmouth.Sound(x, self.fs)
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.to_pitch_ac(
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time_step=160 / 16000,
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voicing_threshold=0.6,
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pitch_floor=self.f0_min,
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pitch_ceiling=self.f0_max,
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)
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.selected_array["frequency"]
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)
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return np.pad(
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f0,
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[
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[
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max(0, (p_len - len(f0) + 1) // 2),
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max(0, p_len - len(f0) - (p_len - len(f0) + 1) // 2),
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]
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],
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mode="constant",
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)
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def get_harvest(self, x):
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f0_spectral = pyworld.harvest(
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x.astype(np.double),
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fs=self.fs,
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f0_ceil=self.f0_max,
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f0_floor=self.f0_min,
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frame_period=1000 * self.hop / self.fs,
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)
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return pyworld.stonemask(x.astype(np.double), *f0_spectral, self.fs)
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def get_dio(self, x):
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f0_spectral = pyworld.dio(
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x.astype(np.double),
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fs=self.fs,
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f0_ceil=self.f0_max,
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f0_floor=self.f0_min,
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frame_period=1000 * self.hop / self.fs,
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)
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return pyworld.stonemask(x.astype(np.double), *f0_spectral, self.fs)
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def get_rmvpe(self, x):
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if not hasattr(self, "model_rmvpe"):
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from rvc.lib.rmvpe import RMVPE
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self.model_rmvpe = RMVPE("rmvpe.pt", is_half=False, device="cpu")
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return self.model_rmvpe.infer_from_audio(x, thred=0.03)
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def get_f0_method_dict(self):
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return {
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"pm": self.get_pm,
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"harvest": self.get_harvest,
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"dio": self.get_dio,
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"rmvpe": self.get_rmvpe,
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}
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def compute_f0(self, path, f0_method, hop_length):
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x = load_audio(path, self.fs)
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p_len = x.shape[0] // self.hop
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if f0_method in self.f0_method_dict:
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f0 = (
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self.f0_method_dict[f0_method](x, p_len)
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if f0_method == "pm"
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else self.f0_method_dict[f0_method](x)
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)
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elif f0_method == "crepe":
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f0 = self.mncrepe(f0_method, x, p_len, hop_length)
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return f0
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def coarse_f0(self, f0):
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f0_mel = 1127 * np.log(1 + f0 / 700)
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f0_mel[f0_mel > 0] = (f0_mel[f0_mel > 0] - self.f0_mel_min) * (
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self.f0_bin - 2
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) / (self.f0_mel_max - self.f0_mel_min) + 1
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f0_mel[f0_mel <= 1] = 1
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f0_mel[f0_mel > self.f0_bin - 1] = self.f0_bin - 1
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f0_coarse = np.rint(f0_mel).astype(int)
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assert f0_coarse.max() <= 255 and f0_coarse.min() >= 1, (
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f0_coarse.max(),
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f0_coarse.min(),
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)
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return f0_coarse
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def process_paths(self, paths, f0_method, hop_length, thread_n):
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if len(paths) == 0:
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print("There are no paths to process.")
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return
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with tqdm.tqdm(total=len(paths), leave=True, position=thread_n) as pbar:
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description = f"Thread {thread_n} | Hop-Length {hop_length}"
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pbar.set_description(description)
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for idx, (inp_path, opt_path1, opt_path2) in enumerate(paths):
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try:
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if os.path.exists(opt_path1 + ".npy") and os.path.exists(
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opt_path2 + ".npy"
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):
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pbar.update(1)
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continue
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feature_pit = self.compute_f0(inp_path, f0_method, hop_length)
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np.save(
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opt_path2,
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feature_pit,
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allow_pickle=False,
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)
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coarse_pit = self.coarse_f0(feature_pit)
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np.save(
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opt_path1,
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coarse_pit,
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allow_pickle=False,
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)
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pbar.update(1)
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except Exception as error:
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print(f"f0fail-{idx}-{inp_path}-{error}")
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if __name__ == "__main__":
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feature_input = FeatureInput()
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paths = []
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input_root = f"{exp_dir}/1_16k_wavs"
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output_root1 = f"{exp_dir}/2a_f0"
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output_root2 = f"{exp_dir}/2b-f0nsf"
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os.makedirs(output_root1, exist_ok=True)
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os.makedirs(output_root2, exist_ok=True)
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for name in sorted(list(os.listdir(input_root))):
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input_path = f"{input_root}/{name}"
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if "spec" in input_path:
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continue
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output_path1 = f"{output_root1}/{name}"
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output_path2 = f"{output_root2}/{name}"
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paths.append([input_path, output_path1, output_path2])
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processes = []
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print("Using f0 method: " + f0_method)
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for i in range(num_processes):
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p = Process(
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target=feature_input.process_paths,
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args=(paths[i::num_processes], f0_method, hop_length, i),
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)
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processes.append(p)
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p.start()
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for i in range(num_processes):
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processes[i].join()
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