| import os | |
| import six | |
| import sys | |
| import librosa | |
| import tempfile | |
| import platform | |
| import subprocess | |
| import numpy as np | |
| import soundfile as sf | |
| from scipy.signal import correlate, hilbert | |
| sys.path.append(os.getcwd()) | |
| from main.configs.config import Config | |
| translations = Config().translations | |
| OPERATING_SYSTEM = platform.system() | |
| SYSTEM_ARCH = platform.platform() | |
| SYSTEM_PROC = platform.processor() | |
| ARM = "arm" | |
| AUTO_PHASE = "Automatic" | |
| POSITIVE_PHASE = "Positive Phase" | |
| NEGATIVE_PHASE = "Negative Phase" | |
| NONE_P = ("None",) | |
| LOW_P = ("Shifts: Low",) | |
| MED_P = ("Shifts: Medium",) | |
| HIGH_P = ("Shifts: High",) | |
| VHIGH_P = "Shifts: Very High" | |
| MAXIMUM_P = "Shifts: Maximum" | |
| BASE_PATH_RUB = sys._MEIPASS if getattr(sys, 'frozen', False) else os.path.dirname(os.path.abspath(__file__)) | |
| DEVNULL = open(os.devnull, 'w') if six.PY2 else subprocess.DEVNULL | |
| MAX_SPEC = "Max Spec" | |
| MIN_SPEC = "Min Spec" | |
| LIN_ENSE = "Linear Ensemble" | |
| MAX_WAV = MAX_SPEC | |
| MIN_WAV = MIN_SPEC | |
| AVERAGE = "Average" | |
| progress_value, last_update_time = 0, 0 | |
| wav_resolution = "sinc_fastest" | |
| wav_resolution_float_resampling = wav_resolution | |
| def crop_center(h1, h2): | |
| h1_shape = h1.size() | |
| h2_shape = h2.size() | |
| if h1_shape[3] == h2_shape[3]: return h1 | |
| elif h1_shape[3] < h2_shape[3]: raise ValueError("h1_shape[3] > h2_shape[3]") | |
| s_time = (h1_shape[3] - h2_shape[3]) // 2 | |
| h1 = h1[:, :, :, s_time:s_time + h2_shape[3]] | |
| return h1 | |
| def preprocess(X_spec): | |
| return np.abs(X_spec), np.angle(X_spec) | |
| def make_padding(width, cropsize, offset): | |
| roi_size = cropsize - offset * 2 | |
| if roi_size == 0: roi_size = cropsize | |
| return offset, roi_size - (width % roi_size) + offset, roi_size | |
| def normalize(wave, max_peak=1.0): | |
| maxv = np.abs(wave).max() | |
| if maxv > max_peak: wave *= max_peak / maxv | |
| return wave | |
| def auto_transpose(audio_array): | |
| if audio_array.shape[1] == 2: return audio_array.T | |
| return audio_array | |
| def write_array_to_mem(audio_data, subtype): | |
| if isinstance(audio_data, np.ndarray): | |
| import io | |
| audio_buffer = io.BytesIO() | |
| sf.write(audio_buffer, audio_data, 44100, subtype=subtype, format="WAV") | |
| audio_buffer.seek(0) | |
| return audio_buffer | |
| else: return audio_data | |
| def spectrogram_to_image(spec, mode="magnitude"): | |
| if mode == "magnitude": y = np.log10((np.abs(spec) if np.iscomplexobj(spec) else spec)**2 + 1e-8) | |
| elif mode == "phase": y = np.angle(spec) if np.iscomplexobj(spec) else spec | |
| y -= y.min() | |
| y *= 255 / y.max() | |
| img = np.uint8(y) | |
| if y.ndim == 3: | |
| img = img.transpose(1, 2, 0) | |
| img = np.concatenate([np.max(img, axis=2, keepdims=True), img], axis=2) | |
| return img | |
| def reduce_vocal_aggressively(X, y, softmask): | |
| y_mag_tmp = np.abs(y) | |
| v_mag_tmp = np.abs(X - y) | |
| return np.clip(y_mag_tmp - v_mag_tmp * (v_mag_tmp > y_mag_tmp) * softmask, 0, np.inf) * np.exp(1.0j * np.angle(y)) | |
| def merge_artifacts(y_mask, thres=0.01, min_range=64, fade_size=32): | |
| mask = y_mask | |
| try: | |
| if min_range < fade_size * 2: raise ValueError("min_range >= fade_size * 2") | |
| idx = np.where(y_mask.min(axis=(0, 1)) > thres)[0] | |
| start_idx = np.insert(idx[np.where(np.diff(idx) != 1)[0] + 1], 0, idx[0]) | |
| end_idx = np.append(idx[np.where(np.diff(idx) != 1)[0]], idx[-1]) | |
| artifact_idx = np.where(end_idx - start_idx > min_range)[0] | |
| weight = np.zeros_like(y_mask) | |
| if len(artifact_idx) > 0: | |
| start_idx = start_idx[artifact_idx] | |
| end_idx = end_idx[artifact_idx] | |
| old_e = None | |
| for s, e in zip(start_idx, end_idx): | |
| if old_e is not None and s - old_e < fade_size: s = old_e - fade_size * 2 | |
| if s != 0: weight[:, :, s : s + fade_size] = np.linspace(0, 1, fade_size) | |
| else: s -= fade_size | |
| if e != y_mask.shape[2]: weight[:, :, e - fade_size : e] = np.linspace(1, 0, fade_size) | |
| else: e += fade_size | |
| weight[:, :, s + fade_size : e - fade_size] = 1 | |
| old_e = e | |
| v_mask = 1 - y_mask | |
| y_mask += weight * v_mask | |
| mask = y_mask | |
| except Exception as e: | |
| import traceback | |
| print(translations["not_success"], f'{type(e).__name__}: "{e}"\n{traceback.format_exc()}"') | |
| return mask | |
| def align_wave_head_and_tail(a, b): | |
| l = min([a[0].size, b[0].size]) | |
| return a[:l, :l], b[:l, :l] | |
| def convert_channels(spec, mp, band): | |
| cc = mp.param["band"][band].get("convert_channels") | |
| if "mid_side_c" == cc: | |
| spec_left = np.add(spec[0], spec[1] * 0.25) | |
| spec_right = np.subtract(spec[1], spec[0] * 0.25) | |
| elif "mid_side" == cc: | |
| spec_left = np.add(spec[0], spec[1]) / 2 | |
| spec_right = np.subtract(spec[0], spec[1]) | |
| elif "stereo_n" == cc: | |
| spec_left = np.add(spec[0], spec[1] * 0.25) / 0.9375 | |
| spec_right = np.add(spec[1], spec[0] * 0.25) / 0.9375 | |
| else: return spec | |
| return np.asfortranarray([spec_left, spec_right]) | |
| def combine_spectrograms(specs, mp, is_v51_model=False): | |
| l = min([specs[i].shape[2] for i in specs]) | |
| spec_c = np.zeros(shape=(2, mp.param["bins"] + 1, l), dtype=np.complex64) | |
| offset = 0 | |
| bands_n = len(mp.param["band"]) | |
| for d in range(1, bands_n + 1): | |
| h = mp.param["band"][d]["crop_stop"] - mp.param["band"][d]["crop_start"] | |
| spec_c[:, offset : offset + h, :l] = specs[d][:, mp.param["band"][d]["crop_start"] : mp.param["band"][d]["crop_stop"], :l] | |
| offset += h | |
| if offset > mp.param["bins"]: raise ValueError("offset > mp.param['bins']") | |
| if mp.param["pre_filter_start"] > 0: | |
| if is_v51_model: spec_c *= get_lp_filter_mask(spec_c.shape[1], mp.param["pre_filter_start"], mp.param["pre_filter_stop"]) | |
| else: | |
| if bands_n == 1: spec_c = fft_lp_filter(spec_c, mp.param["pre_filter_start"], mp.param["pre_filter_stop"]) | |
| else: | |
| import math | |
| gp = 1 | |
| for b in range(mp.param["pre_filter_start"] + 1, mp.param["pre_filter_stop"]): | |
| g = math.pow(10, -(b - mp.param["pre_filter_start"]) * (3.5 - gp) / 20.0) | |
| gp = g | |
| spec_c[:, b, :] *= g | |
| return np.asfortranarray(spec_c) | |
| def wave_to_spectrogram(wave, hop_length, n_fft, mp, band, is_v51_model=False): | |
| if wave.ndim == 1: wave = np.asfortranarray([wave, wave]) | |
| if not is_v51_model: | |
| if mp.param["reverse"]: | |
| wave_left = np.flip(np.asfortranarray(wave[0])) | |
| wave_right = np.flip(np.asfortranarray(wave[1])) | |
| elif mp.param["mid_side"]: | |
| wave_left = np.asfortranarray(np.add(wave[0], wave[1]) / 2) | |
| wave_right = np.asfortranarray(np.subtract(wave[0], wave[1])) | |
| elif mp.param["mid_side_b2"]: | |
| wave_left = np.asfortranarray(np.add(wave[1], wave[0] * 0.5)) | |
| wave_right = np.asfortranarray(np.subtract(wave[0], wave[1] * 0.5)) | |
| else: | |
| wave_left = np.asfortranarray(wave[0]) | |
| wave_right = np.asfortranarray(wave[1]) | |
| else: | |
| wave_left = np.asfortranarray(wave[0]) | |
| wave_right = np.asfortranarray(wave[1]) | |
| spec_left = librosa.stft(wave_left, n_fft=n_fft, hop_length=hop_length) | |
| spec_right = librosa.stft(wave_right, n_fft=n_fft, hop_length=hop_length) | |
| spec = np.asfortranarray([spec_left, spec_right]) | |
| if is_v51_model: spec = convert_channels(spec, mp, band) | |
| return spec | |
| def spectrogram_to_wave(spec, hop_length=1024, mp={}, band=0, is_v51_model=True): | |
| spec_left = np.asfortranarray(spec[0]) | |
| spec_right = np.asfortranarray(spec[1]) | |
| wave_left = librosa.istft(spec_left, hop_length=hop_length) | |
| wave_right = librosa.istft(spec_right, hop_length=hop_length) | |
| if is_v51_model: | |
| cc = mp.param["band"][band].get("convert_channels") | |
| if "mid_side_c" == cc: return np.asfortranarray([np.subtract(wave_left / 1.0625, wave_right / 4.25), np.add(wave_right / 1.0625, wave_left / 4.25)]) | |
| elif "mid_side" == cc: return np.asfortranarray([np.add(wave_left, wave_right / 2), np.subtract(wave_left, wave_right / 2)]) | |
| elif "stereo_n" == cc: return np.asfortranarray([np.subtract(wave_left, wave_right * 0.25), np.subtract(wave_right, wave_left * 0.25)]) | |
| else: | |
| if mp.param["reverse"]: return np.asfortranarray([np.flip(wave_left), np.flip(wave_right)]) | |
| elif mp.param["mid_side"]: return np.asfortranarray([np.add(wave_left, wave_right / 2), np.subtract(wave_left, wave_right / 2)]) | |
| elif mp.param["mid_side_b2"]: return np.asfortranarray([np.add(wave_right / 1.25, 0.4 * wave_left), np.subtract(wave_left / 1.25, 0.4 * wave_right)]) | |
| return np.asfortranarray([wave_left, wave_right]) | |
| def cmb_spectrogram_to_wave(spec_m, mp, extra_bins_h=None, extra_bins=None, is_v51_model=False): | |
| bands_n = len(mp.param["band"]) | |
| offset = 0 | |
| for d in range(1, bands_n + 1): | |
| bp = mp.param["band"][d] | |
| spec_s = np.zeros(shape=(2, bp["n_fft"] // 2 + 1, spec_m.shape[2]), dtype=complex) | |
| h = bp["crop_stop"] - bp["crop_start"] | |
| spec_s[:, bp["crop_start"] : bp["crop_stop"], :] = spec_m[:, offset : offset + h, :] | |
| offset += h | |
| if d == bands_n: | |
| if extra_bins_h: | |
| max_bin = bp["n_fft"] // 2 | |
| spec_s[:, max_bin - extra_bins_h : max_bin, :] = extra_bins[:, :extra_bins_h, :] | |
| if bp["hpf_start"] > 0: | |
| if is_v51_model: spec_s *= get_hp_filter_mask(spec_s.shape[1], bp["hpf_start"], bp["hpf_stop"] - 1) | |
| else: spec_s = fft_hp_filter(spec_s, bp["hpf_start"], bp["hpf_stop"] - 1) | |
| wave = spectrogram_to_wave(spec_s, bp["hl"], mp, d, is_v51_model) if bands_n == 1 else np.add(wave, spectrogram_to_wave(spec_s, bp["hl"], mp, d, is_v51_model)) | |
| else: | |
| sr = mp.param["band"][d + 1]["sr"] | |
| if d == 1: | |
| if is_v51_model: spec_s *= get_lp_filter_mask(spec_s.shape[1], bp["lpf_start"], bp["lpf_stop"]) | |
| else: spec_s = fft_lp_filter(spec_s, bp["lpf_start"], bp["lpf_stop"]) | |
| try: | |
| wave = librosa.resample(spectrogram_to_wave(spec_s, bp["hl"], mp, d, is_v51_model), orig_sr=bp["sr"], target_sr=sr, res_type=wav_resolution) | |
| except ValueError as e: | |
| print(f"{translations['resample_error']}: {e}") | |
| print(f"{translations['shapes']} Spec_s: {spec_s.shape}, SR: {sr}, {translations['wav_resolution']}: {wav_resolution}") | |
| else: | |
| if is_v51_model: | |
| spec_s *= get_hp_filter_mask(spec_s.shape[1], bp["hpf_start"], bp["hpf_stop"] - 1) | |
| spec_s *= get_lp_filter_mask(spec_s.shape[1], bp["lpf_start"], bp["lpf_stop"]) | |
| else: | |
| spec_s = fft_hp_filter(spec_s, bp["hpf_start"], bp["hpf_stop"] - 1) | |
| spec_s = fft_lp_filter(spec_s, bp["lpf_start"], bp["lpf_stop"]) | |
| try: | |
| wave = librosa.resample(np.add(wave, spectrogram_to_wave(spec_s, bp["hl"], mp, d, is_v51_model)), orig_sr=bp["sr"], target_sr=sr, res_type=wav_resolution) | |
| except ValueError as e: | |
| print(f"{translations['resample_error']}: {e}") | |
| print(f"{translations['shapes']} Spec_s: {spec_s.shape}, SR: {sr}, {translations['wav_resolution']}: {wav_resolution}") | |
| return wave | |
| def get_lp_filter_mask(n_bins, bin_start, bin_stop): | |
| return np.concatenate([np.ones((bin_start - 1, 1)), np.linspace(1, 0, bin_stop - bin_start + 1)[:, None], np.zeros((n_bins - bin_stop, 1))], axis=0) | |
| def get_hp_filter_mask(n_bins, bin_start, bin_stop): | |
| return np.concatenate([np.zeros((bin_stop + 1, 1)), np.linspace(0, 1, 1 + bin_start - bin_stop)[:, None], np.ones((n_bins - bin_start - 2, 1))], axis=0) | |
| def fft_lp_filter(spec, bin_start, bin_stop): | |
| g = 1.0 | |
| for b in range(bin_start, bin_stop): | |
| g -= 1 / (bin_stop - bin_start) | |
| spec[:, b, :] = g * spec[:, b, :] | |
| spec[:, bin_stop:, :] *= 0 | |
| return spec | |
| def fft_hp_filter(spec, bin_start, bin_stop): | |
| g = 1.0 | |
| for b in range(bin_start, bin_stop, -1): | |
| g -= 1 / (bin_start - bin_stop) | |
| spec[:, b, :] = g * spec[:, b, :] | |
| spec[:, 0 : bin_stop + 1, :] *= 0 | |
| return spec | |
| def spectrogram_to_wave_old(spec, hop_length=1024): | |
| if spec.ndim == 2: wave = librosa.istft(spec, hop_length=hop_length) | |
| elif spec.ndim == 3: wave = np.asfortranarray([librosa.istft(np.asfortranarray(spec[0]), hop_length=hop_length), librosa.istft(np.asfortranarray(spec[1]), hop_length=hop_length)]) | |
| return wave | |
| def wave_to_spectrogram_old(wave, hop_length, n_fft): | |
| return np.asfortranarray([librosa.stft(np.asfortranarray(wave[0]), n_fft=n_fft, hop_length=hop_length), librosa.stft(np.asfortranarray(wave[1]), n_fft=n_fft, hop_length=hop_length)]) | |
| def mirroring(a, spec_m, input_high_end, mp): | |
| if "mirroring" == a: | |
| mirror = np.flip(np.abs(spec_m[:, mp.param["pre_filter_start"] - 10 - input_high_end.shape[1] : mp.param["pre_filter_start"] - 10, :]), 1) * np.exp(1.0j * np.angle(input_high_end)) | |
| return np.where(np.abs(input_high_end) <= np.abs(mirror), input_high_end, mirror) | |
| if "mirroring2" == a: | |
| mi = np.multiply(np.flip(np.abs(spec_m[:, mp.param["pre_filter_start"] - 10 - input_high_end.shape[1] : mp.param["pre_filter_start"] - 10, :]), 1), input_high_end * 1.7) | |
| return np.where(np.abs(input_high_end) <= np.abs(mi), input_high_end, mi) | |
| def adjust_aggr(mask, is_non_accom_stem, aggressiveness): | |
| aggr = aggressiveness["value"] * 2 | |
| if aggr != 0: | |
| if is_non_accom_stem: | |
| aggr = 1 - aggr | |
| if np.any(aggr > 10) or np.any(aggr < -10): print(f"{translations['warnings']}: {aggr}") | |
| aggr = [aggr, aggr] | |
| if aggressiveness["aggr_correction"] is not None: | |
| aggr[0] += aggressiveness["aggr_correction"]["left"] | |
| aggr[1] += aggressiveness["aggr_correction"]["right"] | |
| for ch in range(2): | |
| mask[ch, : aggressiveness["split_bin"]] = np.power(mask[ch, : aggressiveness["split_bin"]], 1 + aggr[ch] / 3) | |
| mask[ch, aggressiveness["split_bin"] :] = np.power(mask[ch, aggressiveness["split_bin"] :], 1 + aggr[ch]) | |
| return mask | |
| def stft(wave, nfft, hl): | |
| return np.asfortranarray([librosa.stft(np.asfortranarray(wave[0]), n_fft=nfft, hop_length=hl), librosa.stft(np.asfortranarray(wave[1]), n_fft=nfft, hop_length=hl)]) | |
| def istft(spec, hl): | |
| return np.asfortranarray([librosa.istft(np.asfortranarray(spec[0]), hop_length=hl), librosa.istft(np.asfortranarray(spec[1]), hop_length=hl)]) | |
| def spec_effects(wave, algorithm="Default", value=None): | |
| if np.isnan(wave).any() or np.isinf(wave).any(): print(f"{translations['warnings_2']}: {wave.shape}") | |
| spec = [stft(wave[0], 2048, 1024), stft(wave[1], 2048, 1024)] | |
| if algorithm == "Min_Mag": wave = istft(np.where(np.abs(spec[1]) <= np.abs(spec[0]), spec[1], spec[0]), 1024) | |
| elif algorithm == "Max_Mag": wave = istft(np.where(np.abs(spec[1]) >= np.abs(spec[0]), spec[1], spec[0]), 1024) | |
| elif algorithm == "Default": wave = (wave[1] * value) + (wave[0] * (1 - value)) | |
| elif algorithm == "Invert_p": | |
| X_mag, y_mag = np.abs(spec[0]), np.abs(spec[1]) | |
| wave = istft(spec[1] - np.where(X_mag >= y_mag, X_mag, y_mag) * np.exp(1.0j * np.angle(spec[0])), 1024) | |
| return wave | |
| def spectrogram_to_wave_no_mp(spec, n_fft=2048, hop_length=1024): | |
| wave = librosa.istft(spec, n_fft=n_fft, hop_length=hop_length) | |
| if wave.ndim == 1: wave = np.asfortranarray([wave, wave]) | |
| return wave | |
| def wave_to_spectrogram_no_mp(wave): | |
| spec = librosa.stft(wave, n_fft=2048, hop_length=1024) | |
| if spec.ndim == 1: spec = np.asfortranarray([spec, spec]) | |
| return spec | |
| def invert_audio(specs, invert_p=True): | |
| ln = min([specs[0].shape[2], specs[1].shape[2]]) | |
| specs[0] = specs[0][:, :, :ln] | |
| specs[1] = specs[1][:, :, :ln] | |
| if invert_p: | |
| X_mag, y_mag = np.abs(specs[0]), np.abs(specs[1]) | |
| v_spec = specs[1] - np.where(X_mag >= y_mag, X_mag, y_mag) * np.exp(1.0j * np.angle(specs[0])) | |
| else: | |
| specs[1] = reduce_vocal_aggressively(specs[0], specs[1], 0.2) | |
| v_spec = specs[0] - specs[1] | |
| return v_spec | |
| def invert_stem(mixture, stem): | |
| return -spectrogram_to_wave_no_mp(invert_audio([wave_to_spectrogram_no_mp(mixture), wave_to_spectrogram_no_mp(stem)])).T | |
| def ensembling(a, inputs, is_wavs=False): | |
| for i in range(1, len(inputs)): | |
| if i == 1: input = inputs[0] | |
| if is_wavs: | |
| ln = min([input.shape[1], inputs[i].shape[1]]) | |
| input = input[:, :ln] | |
| inputs[i] = inputs[i][:, :ln] | |
| else: | |
| ln = min([input.shape[2], inputs[i].shape[2]]) | |
| input = input[:, :, :ln] | |
| inputs[i] = inputs[i][:, :, :ln] | |
| if MIN_SPEC == a: input = np.where(np.abs(inputs[i]) <= np.abs(input), inputs[i], input) | |
| if MAX_SPEC == a: input = np.where(np.abs(inputs[i]) >= np.abs(input), inputs[i], input) | |
| return input | |
| def ensemble_for_align(waves): | |
| specs = [] | |
| for wav in waves: | |
| spec = wave_to_spectrogram_no_mp(wav.T) | |
| specs.append(spec) | |
| wav_aligned = spectrogram_to_wave_no_mp(ensembling(MIN_SPEC, specs)).T | |
| wav_aligned = match_array_shapes(wav_aligned, waves[1], is_swap=True) | |
| return wav_aligned | |
| def ensemble_inputs(audio_input, algorithm, is_normalization, wav_type_set, save_path, is_wave=False, is_array=False): | |
| wavs_ = [] | |
| if algorithm == AVERAGE: | |
| output = average_audio(audio_input) | |
| samplerate = 44100 | |
| else: | |
| specs = [] | |
| for i in range(len(audio_input)): | |
| wave, samplerate = librosa.load(audio_input[i], mono=False, sr=44100) | |
| wavs_.append(wave) | |
| specs.append( wave if is_wave else wave_to_spectrogram_no_mp(wave)) | |
| wave_shapes = [w.shape[1] for w in wavs_] | |
| target_shape = wavs_[wave_shapes.index(max(wave_shapes))] | |
| output = ensembling(algorithm, specs, is_wavs=True) if is_wave else spectrogram_to_wave_no_mp(ensembling(algorithm, specs)) | |
| output = to_shape(output, target_shape.shape) | |
| sf.write(save_path, normalize(output.T, is_normalization), samplerate, subtype=wav_type_set) | |
| def to_shape(x, target_shape): | |
| padding_list = [] | |
| for x_dim, target_dim in zip(x.shape, target_shape): | |
| padding_list.append((0, target_dim - x_dim)) | |
| return np.pad(x, tuple(padding_list), mode="constant") | |
| def to_shape_minimize(x, target_shape): | |
| padding_list = [] | |
| for x_dim, target_dim in zip(x.shape, target_shape): | |
| padding_list.append((0, target_dim - x_dim)) | |
| return np.pad(x, tuple(padding_list), mode="constant") | |
| def detect_leading_silence(audio, sr, silence_threshold=0.007, frame_length=1024): | |
| if len(audio.shape) == 2: | |
| channel = np.argmax(np.sum(np.abs(audio), axis=1)) | |
| audio = audio[channel] | |
| for i in range(0, len(audio), frame_length): | |
| if np.max(np.abs(audio[i : i + frame_length])) > silence_threshold: return (i / sr) * 1000 | |
| return (len(audio) / sr) * 1000 | |
| def adjust_leading_silence(target_audio, reference_audio, silence_threshold=0.01, frame_length=1024): | |
| def find_silence_end(audio): | |
| if len(audio.shape) == 2: | |
| channel = np.argmax(np.sum(np.abs(audio), axis=1)) | |
| audio_mono = audio[channel] | |
| else: audio_mono = audio | |
| for i in range(0, len(audio_mono), frame_length): | |
| if np.max(np.abs(audio_mono[i : i + frame_length])) > silence_threshold: return i | |
| return len(audio_mono) | |
| ref_silence_end = find_silence_end(reference_audio) | |
| target_silence_end = find_silence_end(target_audio) | |
| silence_difference = ref_silence_end - target_silence_end | |
| try: | |
| silence_difference_p = ((ref_silence_end / 44100) * 1000) - ((target_silence_end / 44100) * 1000) | |
| except Exception as e: | |
| pass | |
| if silence_difference > 0: return np.hstack((np.zeros((target_audio.shape[0], silence_difference))if len(target_audio.shape) == 2 else np.zeros(silence_difference), target_audio)) | |
| elif silence_difference < 0: return target_audio[:, -silence_difference:]if len(target_audio.shape) == 2 else target_audio[-silence_difference:] | |
| else: return target_audio | |
| def match_array_shapes(array_1, array_2, is_swap=False): | |
| if is_swap: array_1, array_2 = array_1.T, array_2.T | |
| if array_1.shape[1] > array_2.shape[1]: array_1 = array_1[:, : array_2.shape[1]] | |
| elif array_1.shape[1] < array_2.shape[1]: | |
| padding = array_2.shape[1] - array_1.shape[1] | |
| array_1 = np.pad(array_1, ((0, 0), (0, padding)), "constant", constant_values=0) | |
| if is_swap: array_1, array_2 = array_1.T, array_2.T | |
| return array_1 | |
| def match_mono_array_shapes(array_1, array_2): | |
| if len(array_1) > len(array_2): array_1 = array_1[: len(array_2)] | |
| elif len(array_1) < len(array_2): | |
| padding = len(array_2) - len(array_1) | |
| array_1 = np.pad(array_1, (0, padding), "constant", constant_values=0) | |
| return array_1 | |
| def change_pitch_semitones(y, sr, semitone_shift): | |
| factor = 2 ** (semitone_shift / 12) | |
| y_pitch_tuned = [] | |
| for y_channel in y: | |
| y_pitch_tuned.append(librosa.resample(y_channel, orig_sr=sr, target_sr=sr * factor, res_type=wav_resolution_float_resampling)) | |
| y_pitch_tuned = np.array(y_pitch_tuned) | |
| new_sr = sr * factor | |
| return y_pitch_tuned, new_sr | |
| def augment_audio(export_path, audio_file, rate, is_normalization, wav_type_set, save_format=None, is_pitch=False, is_time_correction=True): | |
| wav, sr = librosa.load(audio_file, sr=44100, mono=False) | |
| if wav.ndim == 1: wav = np.asfortranarray([wav, wav]) | |
| if not is_time_correction: wav_mix = change_pitch_semitones(wav, 44100, semitone_shift=-rate)[0] | |
| else: | |
| if is_pitch: wav_1, wav_2 = pitch_shift(wav[0], sr, rate, rbargs=None), pitch_shift(wav[1], sr, rate, rbargs=None) | |
| else: wav_1, wav_2 = time_stretch(wav[0], sr, rate, rbargs=None), time_stretch(wav[1], sr, rate, rbargs=None) | |
| if wav_1.shape > wav_2.shape: wav_2 = to_shape(wav_2, wav_1.shape) | |
| if wav_1.shape < wav_2.shape: wav_1 = to_shape(wav_1, wav_2.shape) | |
| wav_mix = np.asfortranarray([wav_1, wav_2]) | |
| sf.write(export_path, normalize(wav_mix.T, is_normalization), sr, subtype=wav_type_set) | |
| save_format(export_path) | |
| def average_audio(audio): | |
| waves, wave_shapes, final_waves = [], [], [] | |
| for i in range(len(audio)): | |
| wave = librosa.load(audio[i], sr=44100, mono=False) | |
| waves.append(wave[0]) | |
| wave_shapes.append(wave[0].shape[1]) | |
| wave_shapes_index = wave_shapes.index(max(wave_shapes)) | |
| target_shape = waves[wave_shapes_index] | |
| waves.pop(wave_shapes_index) | |
| final_waves.append(target_shape) | |
| for n_array in waves: | |
| wav_target = to_shape(n_array, target_shape.shape) | |
| final_waves.append(wav_target) | |
| waves = sum(final_waves) | |
| return waves / len(audio) | |
| def average_dual_sources(wav_1, wav_2, value): | |
| if wav_1.shape > wav_2.shape: wav_2 = to_shape(wav_2, wav_1.shape) | |
| if wav_1.shape < wav_2.shape: wav_1 = to_shape(wav_1, wav_2.shape) | |
| return (wav_1 * value) + (wav_2 * (1 - value)) | |
| def reshape_sources(wav_1, wav_2): | |
| if wav_1.shape > wav_2.shape: wav_2 = to_shape(wav_2, wav_1.shape) | |
| if wav_1.shape < wav_2.shape: | |
| ln = min([wav_1.shape[1], wav_2.shape[1]]) | |
| wav_2 = wav_2[:, :ln] | |
| ln = min([wav_1.shape[1], wav_2.shape[1]]) | |
| wav_1 = wav_1[:, :ln] | |
| wav_2 = wav_2[:, :ln] | |
| return wav_2 | |
| def reshape_sources_ref(wav_1_shape, wav_2): | |
| if wav_1_shape > wav_2.shape: wav_2 = to_shape(wav_2, wav_1_shape) | |
| return wav_2 | |
| def combine_arrarys(audio_sources, is_swap=False): | |
| source = np.zeros_like(max(audio_sources, key=np.size)) | |
| for v in audio_sources: | |
| v = match_array_shapes(v, source, is_swap=is_swap) | |
| source += v | |
| return source | |
| def combine_audio(paths, audio_file_base=None, wav_type_set="FLOAT", save_format=None): | |
| source = combine_arrarys([load_audio(i) for i in paths]) | |
| save_path = f"{audio_file_base}_combined.wav" | |
| sf.write(save_path, source.T, 44100, subtype=wav_type_set) | |
| save_format(save_path) | |
| def reduce_mix_bv(inst_source, voc_source, reduction_rate=0.9): | |
| return combine_arrarys([inst_source * (1 - reduction_rate), voc_source], is_swap=True) | |
| def organize_inputs(inputs): | |
| input_list = {"target": None, "reference": None, "reverb": None, "inst": None} | |
| for i in inputs: | |
| if i.endswith("_(Vocals).wav"): input_list["reference"] = i | |
| elif "_RVC_" in i: input_list["target"] = i | |
| elif i.endswith("reverbed_stem.wav"): input_list["reverb"] = i | |
| elif i.endswith("_(Instrumental).wav"): input_list["inst"] = i | |
| return input_list | |
| def check_if_phase_inverted(wav1, wav2, is_mono=False): | |
| if not is_mono: | |
| wav1 = np.mean(wav1, axis=0) | |
| wav2 = np.mean(wav2, axis=0) | |
| return np.corrcoef(wav1[:1000], wav2[:1000])[0, 1] < 0 | |
| def align_audio(file1, file2, file2_aligned, file_subtracted, wav_type_set, is_save_aligned, command_Text, save_format, align_window, align_intro_val, db_analysis, set_progress_bar, phase_option, phase_shifts, is_match_silence, is_spec_match): | |
| global progress_value | |
| progress_value = 0 | |
| is_mono = False | |
| def get_diff(a, b): | |
| return np.correlate(a, b, "full").argmax() - (b.shape[0] - 1) | |
| def progress_bar(length): | |
| global progress_value | |
| progress_value += 1 | |
| if (0.90 / length * progress_value) >= 0.9: length = progress_value + 1 | |
| set_progress_bar(0.1, (0.9 / length * progress_value)) | |
| wav1, sr1 = librosa.load(file1, sr=44100, mono=False) | |
| wav2, sr2 = librosa.load(file2, sr=44100, mono=False) | |
| if wav1.ndim == 1 and wav2.ndim == 1: is_mono = True | |
| elif wav1.ndim == 1: wav1 = np.asfortranarray([wav1, wav1]) | |
| elif wav2.ndim == 1: wav2 = np.asfortranarray([wav2, wav2]) | |
| if phase_option == AUTO_PHASE: | |
| if check_if_phase_inverted(wav1, wav2, is_mono=is_mono): wav2 = -wav2 | |
| elif phase_option == POSITIVE_PHASE: wav2 = +wav2 | |
| elif phase_option == NEGATIVE_PHASE: wav2 = -wav2 | |
| if is_match_silence: wav2 = adjust_leading_silence(wav2, wav1) | |
| wav1_length = int(librosa.get_duration(y=wav1, sr=44100)) | |
| wav2_length = int(librosa.get_duration(y=wav2, sr=44100)) | |
| if not is_mono: | |
| wav1 = wav1.transpose() | |
| wav2 = wav2.transpose() | |
| wav2_org = wav2.copy() | |
| command_Text(translations["process_file"]) | |
| seconds_length = min(wav1_length, wav2_length) | |
| wav2_aligned_sources = [] | |
| for sec_len in align_intro_val: | |
| sec_seg = 1 if sec_len == 1 else int(seconds_length // sec_len) | |
| index = sr1 * sec_seg | |
| if is_mono: | |
| samp1, samp2 = wav1[index : index + sr1], wav2[index : index + sr1] | |
| diff = get_diff(samp1, samp2) | |
| else: | |
| index = sr1 * sec_seg | |
| samp1, samp2 = wav1[index : index + sr1, 0], wav2[index : index + sr1, 0] | |
| samp1_r, samp2_r = wav1[index : index + sr1, 1], wav2[index : index + sr1, 1] | |
| diff, _ = get_diff(samp1, samp2), get_diff(samp1_r, samp2_r) | |
| if diff > 0: wav2_aligned = np.append(np.zeros(diff) if is_mono else np.zeros((diff, 2)), wav2_org, axis=0) | |
| elif diff < 0: wav2_aligned = wav2_org[-diff:] | |
| else: wav2_aligned = wav2_org | |
| if not any(np.array_equal(wav2_aligned, source) for source in wav2_aligned_sources): wav2_aligned_sources.append(wav2_aligned) | |
| unique_sources = len(wav2_aligned_sources) | |
| sub_mapper_big_mapper = {} | |
| for s in wav2_aligned_sources: | |
| wav2_aligned = match_mono_array_shapes(s, wav1) if is_mono else match_array_shapes(s, wav1, is_swap=True) | |
| if align_window: | |
| wav_sub = time_correction(wav1, wav2_aligned, seconds_length, align_window=align_window, db_analysis=db_analysis, progress_bar=progress_bar, unique_sources=unique_sources, phase_shifts=phase_shifts) | |
| sub_mapper_big_mapper = {**sub_mapper_big_mapper, **{np.abs(wav_sub).mean(): wav_sub}} | |
| else: | |
| wav2_aligned = wav2_aligned * np.power(10, db_analysis[0] / 20) | |
| for db_adjustment in db_analysis[1]: | |
| sub_mapper_big_mapper = {**sub_mapper_big_mapper, **{np.abs(wav_sub).mean(): wav1 - (wav2_aligned * (10 ** (db_adjustment / 20)))}} | |
| wav_sub = ensemble_for_align(list(sub_mapper_big_mapper.values())) if is_spec_match and len(list(sub_mapper_big_mapper.values())) >= 2 else ensemble_wav(list(sub_mapper_big_mapper.values())) | |
| wav_sub = np.clip(wav_sub, -1, +1) | |
| command_Text(translations["save_instruments"]) | |
| if is_save_aligned or is_spec_match: | |
| wav1 = match_mono_array_shapes(wav1, wav_sub) if is_mono else match_array_shapes(wav1, wav_sub, is_swap=True) | |
| wav2_aligned = wav1 - wav_sub | |
| if is_spec_match: | |
| if wav1.ndim == 1 and wav2.ndim == 1: | |
| wav2_aligned = np.asfortranarray([wav2_aligned, wav2_aligned]).T | |
| wav1 = np.asfortranarray([wav1, wav1]).T | |
| wav2_aligned = ensemble_for_align([wav2_aligned, wav1]) | |
| wav_sub = wav1 - wav2_aligned | |
| if is_save_aligned: | |
| sf.write(file2_aligned, wav2_aligned, sr1, subtype=wav_type_set) | |
| save_format(file2_aligned) | |
| sf.write(file_subtracted, wav_sub, sr1, subtype=wav_type_set) | |
| save_format(file_subtracted) | |
| def phase_shift_hilbert(signal, degree): | |
| analytic_signal = hilbert(signal) | |
| return np.cos(np.radians(degree)) * analytic_signal.real - np.sin(np.radians(degree)) * analytic_signal.imag | |
| def get_phase_shifted_tracks(track, phase_shift): | |
| if phase_shift == 180: return [track, -track] | |
| step = phase_shift | |
| end = 180 - (180 % step) if 180 % step == 0 else 181 | |
| phase_range = range(step, end, step) | |
| flipped_list = [track, -track] | |
| for i in phase_range: | |
| flipped_list.extend([phase_shift_hilbert(track, i), phase_shift_hilbert(track, -i)]) | |
| return flipped_list | |
| def time_correction(mix, instrumental, seconds_length, align_window, db_analysis, sr=44100, progress_bar=None, unique_sources=None, phase_shifts=NONE_P): | |
| def align_tracks(track1, track2): | |
| shifted_tracks = {} | |
| track2 = track2 * np.power(10, db_analysis[0] / 20) | |
| track2_flipped = [track2] if phase_shifts == 190 else get_phase_shifted_tracks(track2, phase_shifts) | |
| for db_adjustment in db_analysis[1]: | |
| for t in track2_flipped: | |
| track2_adjusted = t * (10 ** (db_adjustment / 20)) | |
| track2_shifted = np.roll(track2_adjusted, shift=np.argmax(np.abs(correlate(track1, track2_adjusted))) - (len(track1) - 1)) | |
| shifted_tracks[np.abs(track1 - track2_shifted).mean()] = track2_shifted | |
| return shifted_tracks[min(shifted_tracks.keys())] | |
| assert mix.shape == instrumental.shape, translations["assert"].format(mixshape=mix.shape, instrumentalshape=instrumental.shape) | |
| seconds_length = seconds_length // 2 | |
| sub_mapper = {} | |
| progress_update_interval, total_iterations = 120, 0 | |
| if len(align_window) > 2: progress_update_interval = 320 | |
| for secs in align_window: | |
| step = secs / 2 | |
| window_size = int(sr * secs) | |
| step_size = int(sr * step) | |
| if len(mix.shape) == 1: total_iterations += ((len(range(0, len(mix) - window_size, step_size)) // progress_update_interval) * unique_sources) | |
| else: total_iterations += ((len(range(0, len(mix[:, 0]) - window_size, step_size)) * 2 // progress_update_interval) * unique_sources) | |
| for secs in align_window: | |
| sub = np.zeros_like(mix) | |
| divider = np.zeros_like(mix) | |
| window_size = int(sr * secs) | |
| step_size = int(sr * secs / 2) | |
| window = np.hanning(window_size) | |
| if len(mix.shape) == 1: | |
| counter = 0 | |
| for i in range(0, len(mix) - window_size, step_size): | |
| counter += 1 | |
| if counter % progress_update_interval == 0: progress_bar(total_iterations) | |
| window_mix = mix[i : i + window_size] * window | |
| window_instrumental = instrumental[i : i + window_size] * window | |
| window_instrumental_aligned = align_tracks(window_mix, window_instrumental) | |
| sub[i : i + window_size] += window_mix - window_instrumental_aligned | |
| divider[i : i + window_size] += window | |
| else: | |
| counter = 0 | |
| for ch in range(mix.shape[1]): | |
| for i in range(0, len(mix[:, ch]) - window_size, step_size): | |
| counter += 1 | |
| if counter % progress_update_interval == 0: progress_bar(total_iterations) | |
| window_mix = mix[i : i + window_size, ch] * window | |
| window_instrumental = instrumental[i : i + window_size, ch] * window | |
| window_instrumental_aligned = align_tracks(window_mix, window_instrumental) | |
| sub[i : i + window_size, ch] += window_mix - window_instrumental_aligned | |
| divider[i : i + window_size, ch] += window | |
| return ensemble_wav(list({**sub_mapper, **{np.abs(sub).mean(): np.where(divider > 1e-6, sub / divider, sub)}}.values()), split_size=12) | |
| def ensemble_wav(waveforms, split_size=240): | |
| waveform_thirds = {i: np.array_split(waveform, split_size) for i, waveform in enumerate(waveforms)} | |
| final_waveform = [] | |
| for third_idx in range(split_size): | |
| final_waveform.append(waveform_thirds[np.argmin([np.abs(waveform_thirds[i][third_idx]).mean() for i in range(len(waveforms))])][third_idx]) | |
| return np.concatenate(final_waveform) | |
| def ensemble_wav_min(waveforms): | |
| for i in range(1, len(waveforms)): | |
| if i == 1: wave = waveforms[0] | |
| ln = min(len(wave), len(waveforms[i])) | |
| wave = wave[:ln] | |
| waveforms[i] = waveforms[i][:ln] | |
| wave = np.where(np.abs(waveforms[i]) <= np.abs(wave), waveforms[i], wave) | |
| return wave | |
| def align_audio_test(wav1, wav2, sr1=44100): | |
| def get_diff(a, b): | |
| return np.correlate(a, b, "full").argmax() - (b.shape[0] - 1) | |
| wav1 = wav1.transpose() | |
| wav2 = wav2.transpose() | |
| wav2_org = wav2.copy() | |
| index = sr1 | |
| diff = get_diff(wav1[index : index + sr1, 0], wav2[index : index + sr1, 0]) | |
| if diff > 0: wav2_aligned = np.append(np.zeros((diff, 1)), wav2_org, axis=0) | |
| elif diff < 0: wav2_aligned = wav2_org[-diff:] | |
| else: wav2_aligned = wav2_org | |
| return wav2_aligned | |
| def load_audio(audio_file): | |
| wav, _ = librosa.load(audio_file, sr=44100, mono=False) | |
| if wav.ndim == 1: wav = np.asfortranarray([wav, wav]) | |
| return wav | |
| def __rubberband(y, sr, **kwargs): | |
| assert sr > 0 | |
| fd, infile = tempfile.mkstemp(suffix='.wav') | |
| os.close(fd) | |
| fd, outfile = tempfile.mkstemp(suffix='.wav') | |
| os.close(fd) | |
| sf.write(infile, y, sr) | |
| try: | |
| arguments = [os.path.join(BASE_PATH_RUB, 'rubberband'), '-q'] | |
| for key, value in six.iteritems(kwargs): | |
| arguments.append(str(key)) | |
| arguments.append(str(value)) | |
| arguments.extend([infile, outfile]) | |
| subprocess.check_call(arguments, stdout=DEVNULL, stderr=DEVNULL) | |
| y_out, _ = sf.read(outfile, always_2d=True) | |
| if y.ndim == 1: y_out = np.squeeze(y_out) | |
| except OSError as exc: | |
| six.raise_from(RuntimeError(translations["rubberband"]), exc) | |
| finally: | |
| os.unlink(infile) | |
| os.unlink(outfile) | |
| return y_out | |
| def time_stretch(y, sr, rate, rbargs=None): | |
| if rate <= 0: raise ValueError(translations["rate"]) | |
| if rate == 1.0: return y | |
| if rbargs is None: rbargs = dict() | |
| rbargs.setdefault('--tempo', rate) | |
| return __rubberband(y, sr, **rbargs) | |
| def pitch_shift(y, sr, n_steps, rbargs=None): | |
| if n_steps == 0: return y | |
| if rbargs is None: rbargs = dict() | |
| rbargs.setdefault('--pitch', n_steps) | |
| return __rubberband(y, sr, **rbargs) |