“无后端错误"在 Python 中读取文件时

问题描述

我正在尝试对一堆声音文件执行 STFT，但出现此错误.我尝试执行 STFT 的文件路径是正确的，但仍然出现此错误.

I am trying to perform STFT on a bunch of sound files and I get this error.The path of the files which I am trying to perform STFT is correct but still, I get this error.

import librosa
import io
import numpy as np
import tensorflow as tf
import os
import glob


path_te = "C:\Users\aanum\OneDrive\Documents\Deep Learning\timit-homework\te"
files = os.listdir(path_te)
for file in sorted(files):
    if file.startswith("tex"):

        file_path = path_te2 + "/" + file

        #file_path = 'r' + "'" + str(file_path) + "'"
        print(file_path)
        st, sr=librosa.load(file_path, sr=None)

输出:

C:/Users/aanum/OneDrive/Documents/Deep Learning/timit-homework/te/tex0000.wav
---------------------------------------------------------------------------
NoBackendError                            Traceback (most recent call last)
<ipython-input-54-4df25548d204> in <module>
      7         #file_path = 'r' + "'" + str(file_path) + "'"
      8         print(file_path)
----> 9         st, sr=librosa.load(file_path, sr=None)
     10         X=librosa.stft(st, n_fft=1024, hop_length=512)
     11         X_abs = abs(X)

~\Anaconda3\envs\DeepLearning\lib\site-packages\librosa\core\audio.py in load(path, sr, mono, offset, duration, dtype, res_type)
    117
    118     y = []
--> 119     with audioread.audio_open(os.path.realpath(path)) as input_file:
    120         sr_native = input_file.samplerate
    121         n_channels = input_file.channels

~\Anaconda3\envs\DeepLearning\lib\site-packages\audioread\__init__.py in audio_open(path, backends)
    114
    115     # All backends failed!
--> 116     raise NoBackendError()

NoBackendError

谁能告诉我为什么会出现这个错误?

Can anyone tell me why I have this error?

推荐答案

确保您的 .wav 文件没有损坏.您可以使用音频文件阅读器(可以读取 wav 文件)打开文件吗?如果没有，则您的文件已损坏.如果您从开源数据集中下载了音频文件，则在您手动解压缩文件夹时它们可能已损坏.我建议您再次下载数据集并使用命令行工具将其解压缩.

Make sure that your .wav file is not corrupted. Can you open the file with an audio file reader (which can read wav files)? If not, your file is corrupted. If you downloaded the audio files from an opensource dataset, it is possible that they are corrupted while you are manually unzipping the folder. I'd recommend you download the dataset again and unzip it with a command-line tool.

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