【ASR】librosa.load() FileNotFoundError

当使用librosa读取音频文件时:

y, sr = librosa.load(os.path.join(path.DATA_PATH, wav))

甚至官方教程:

filename = librosa.util.example_audio_file()
y, sr = librosa.load(filename)

FileNotFoundError: [WinError 2] 系统找不到指定的文件。

---

在librosa-core-audio.py中load()函数

def load(path, sr=22050, mono=True, offset=0.0, duration=None,
         dtype=np.float32, res_type='kaiser_best'):
    y = []
    with audioread.audio_open(os.path.realpath(path)) as input_file:
        ...

当我们使用

audioread.audio_open(os.path.realpath(filename))

audioread.audio_open(os.path.realpath(os.path.join(path.DATA_PATH, wav)))

FileNotFoundError: [WinError 2] 系统找不到指定的文件。

---

os.path.realpath() 返回指定文件的标准路径，而非软链接所在的路径 Return the canonical path of the specified filename, eliminating any symbolic links encountered in the path.

不同于os.path.abspath() 返回一个目录的绝对路径 Return an absolute path.

print(os.path.realpath(os.path.join(path.DATA_PATH, wav)))

D:\...\wav\63.wav

print(os.path.realpath(filename))

D:\...\Kevin_MacLeod_-_Vibe_Ace.ogg

---

在audioread-__init__.py

def audio_open(path, backends=None):
    """Open an audio file using a library that is available on this
    system.

    The optional `backends` parameter can be a list of audio file
    classes to try opening the file with. If it is not provided,
    `audio_open` tries all available backends. If you call this function
    many times, you can avoid the cost of checking for available
    backends every time by calling `available_backends` once and passing
    the result to each `audio_open` call.

    If all backends fail to read the file, a NoBackendError exception is
    raised.
    """
    if backends is None:
        backends = available_backends()

    for BackendClass in backends:
        try:
            return BackendClass(path)
        except DecodeError:
            pass

    # All backends failed!
    raise NoBackendError()

最后解决方法： 以管理员身份运行

emmmm