音频数据集 ¶

译者：龙琰

项目地址：https://pytorch.apachecn.org/2.0/tutorials/beginner/audio_datasets_tutorial

原始地址：https://docs.pytorch.org/audio/stable/tutorials/audio_datasets_tutorial.html

Author: Moto Hira

torchaudio 提供了对公共可访问数据集的轻松访问。有关可用数据集的列表，请参阅官方文档。

import torch
import torchaudio

print(torch.__version__)
print(torchaudio.__version__)

输出：

2.10.0.dev20251013+cu126
2.8.0a0+1d65bbe

import os

import IPython

import matplotlib.pyplot as plt


_SAMPLE_DIR = "_assets"
YESNO_DATASET_PATH = os.path.join(_SAMPLE_DIR, "yes_no")
os.makedirs(YESNO_DATASET_PATH, exist_ok=True)


def plot_specgram(waveform, sample_rate, title="Spectrogram"):
    waveform = waveform.numpy()

    figure, ax = plt.subplots()
    ax.specgram(waveform[0], Fs=sample_rate)
    figure.suptitle(title)
    figure.tight_layout()

在这里，我们展示了如何使用 torchaudio.dataset.YESNO数据集。

dataset = torchaudio.datasets.YESNO(YESNO_DATASET_PATH, download=True)

输出：

2.8%
5.6%
8.4%
11.1%
13.9%
16.7%
19.5%
22.3%
25.1%
27.9%
30.7%
33.4%
36.2%
39.0%
41.8%
44.6%
47.4%
50.2%
52.9%
55.7%
58.5%
61.3%
64.1%
66.9%
69.7%
72.5%
75.2%
78.0%
80.8%
83.6%
86.4%
89.2%
92.0%
94.7%
97.5%
100.0%

i = 1
waveform, sample_rate, label = dataset[i]
plot_specgram(waveform, sample_rate, title=f"Sample {i}: {label}")
IPython.display.Audio(waveform, rate=sample_rate)

• 

i = 3
waveform, sample_rate, label = dataset[i]
plot_specgram(waveform, sample_rate, title=f"Sample {i}: {label}")
IPython.display.Audio(waveform, rate=sample_rate)

• 

i = 5
waveform, sample_rate, label = dataset[i]
plot_specgram(waveform, sample_rate, title=f"Sample {i}: {label}")
IPython.display.Audio(waveform, rate=sample_rate)

• 

脚本的总运行时间：（0分钟3.295秒）

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apachecn/AiLearning

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