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Merge pull request #6 from will-rice/wr-metrics
Add pesq and SignalDistortionRatio
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Original file line number | Diff line number | Diff line change |
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"""Metrics for denoising.""" | ||
import torch | ||
import torchaudio | ||
import torchmetrics | ||
from pesq import cypesq | ||
from torch import Tensor | ||
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def calculate_pesq(pred: Tensor, true: Tensor, sample_rate: int = 24000) -> Tensor: | ||
"""Calculate PESQ.""" | ||
pred_resample = torchaudio.functional.resample(pred, sample_rate, 16000) | ||
true_resample = torchaudio.functional.resample(true, sample_rate, 16000) | ||
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try: | ||
pesq = torchmetrics.functional.audio.pesq.perceptual_evaluation_speech_quality( | ||
pred_resample, true_resample, 16000, "wb" | ||
) | ||
except cypesq.NoUtterancesError: | ||
pesq = torch.tensor(0.0) | ||
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return pesq.mean() |
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