为什么AudioSegment无法读取“ mp3”？

编程问答 2022-06-07

问题描述

我试图读取绝对路径给出的文件。 当我第一次运行代码时，我看到的是以下消息：

D:\prog\datascience\anaconda\lib\site-packages\pydub\utils.py:170: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg,but may not work
  warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg,but may not work",RuntimeWarning)

我尝试过：

PATH_TO_FFMPEG = 'D:\\prog\\ffmpeg-win-2.2.2\\ffmpeg.exe'
pydub.AudioSegment.converter = r'D:\\prog\\ffmpeg-win-2.2.2\\ffmpeg.exe'

然后我分别将ffmpeg和pip一起安装了。但这没有帮助。 当我尝试这个：

raw_sound = pydub.AudioSegment.from_mp3(file=track_path)

其中track_path是自动生成的正确绝对路径。 所以我得到了这个错误：

Traceback (most recent call last):
  File "D:\prog\PyCharm Community Edition 2020.2.2\plugins\python-ce\helpers\pydev\pydevd.py",line 1448,in _exec
    pydev_imports.execfile(file,globals,locals)  # execute the script
  File "D:\prog\PyCharm Community Edition 2020.2.2\plugins\python-ce\helpers\pydev\_pydev_imps\_pydev_execfile.py",line 18,in execfile
    exec(compile(contents+"\n",file,'exec'),glob,loc)
  File "D:/testtask2/test_task/testtask/get_mffc.py",line 165,in <module>
    slice_all_in_a_dir('May 27 2020 LNC/Hydrophone 1/raw_records')
  File "D:/testtask2/test_task/testtask/get_mffc.py",line 70,in slice_all_in_a_dir
    slice_samples(track_path= [file],File "D:/testtask2/test_task/testtask/get_mffc.py",line 48,in slice_samples
    raw_sound = pydub.AudioSegment.from_mp3(file=track_path)
  File "D:\prog\datascience\anaconda\lib\site-packages\pydub\audio_segment.py",line 738,in from_mp3
    return cls.from_file(file,'mp3',parameters=parameters)
  File "D:\prog\datascience\anaconda\lib\site-packages\pydub\audio_segment.py",line 680,in from_file
    stdin_data = file.read()
AttributeError: 'list' object has no attribute 'read'
python-BaseException

使用时的完整代码：

def slice_samples(track_path: list,save_path: str,sample_folder_name: str,interval: float,given_format,name: str = "part",export_format = 'wav'):
    """
    This metod slice given track to parts.
    :param track_path: str,a path to the track you want to slice
    :param save_path: str,a path to folder,where you want save sliced tracks
    :param sample_folder_name: str,you don't need to create a folder for sliced tracks,you can just write the name of the folder in this argument where you want to save tracks
    :param interval: float,measure in seconds,the length of sliced tracks
    :param name: str,name of sliced tacks
    :param given_format: str,I strongly recommend use .wav format initially,when you record sounds
    :return: folder with sliced tracks
    """

    # it cuts a file in mp3 or wav formats (wav recommended)

    interval_secs = interval * 10 ** 3
    raw_sound = None
    if given_format == "WAV":
        raw_sound = pydub.AudioSegment.from_wav(file=track_path)
    elif given_format == "MP3":
        raw_sound = pydub.AudioSegment.from_mp3(file=track_path)
    else:
        raise Exception("It's temporarily unsupported given_format: " + given_format)
    start = 0
    end = interval_secs
    i = 0
    while end < len(raw_sound):
        save_to = save_path + sample_folder_name + "/" + name + str(i)
        part = raw_sound[start:end]
        part.export(save_to,format=export_format)
        i += 1
        start += interval_secs
        end += interval_secs
    return save_path + sample_folder_name

def slice_all_in_a_dir(tracks_folder: str):
    files = os.listdir(tracks_folder)
    for file in files:
        folder_name = file.split('.')
        f_name = folder_name[0]
        file = tracks_folder+'/'+file
        file = os.path.abspath(file)
        slice_samples(track_path= [file],save_path= PATH_FOR_SLICED,sample_folder_name= f_name,interval=5,given_format=folder_name[1])

if __name__ == "__main__":
    slice_all_in_a_dir('May 27 2020 LNC/Hydrophone 1/raw_records')

解决方法

能否请您分享您正在使用的代码，这将有助于找到确切的问题。

if ($total_arr) { $classes = array(); foreach ($total_arr as $bb_ky => $bb_v) { $dayToCheck = date('l',strtotime($bb_v->openingtimed)); switch($dayToCheck) { case "Monday" : $classes[1]['monday'][] = $bb_v; break; case "Tuesday" : $classes[2]['tuesday'][] = $bb_v; break; case "Wednesday" : $classes[3]['wednesday'][] = $bb_v; break; case "Thursday" : $classes[4]['thursday'][] = $bb_v; break; case "Friday" : $classes[5]['friday'][] = $bb_v; break; case "Saturday" : $classes[6]['saturday'][] = $bb_v; break; } } if(!empty($classes)) { foreach($classes as $weekDay) { foreach($weekDay as $theDayName=>$class) { echo "<h2>".ucfirst($theDayName)."</h2>"; foreach($class as $row) { $dayName = date('l',strtotime($row->openingtimed)); $setStartD = date('m-d-Y',strtotime($row->openingtimed)); $setStartT = date('h.i a',$row->openingtime); $setEndT = date('h.i a',$row->closingtime); $chkStart = date('Y-m-d H:i',$row->openingtime); $chkEnd = date('Y-m-d H:i',$row->closingtime); ?> <div class="col-md-12"> <h5 class="subtitle"><?php echo $dayName . ' ' . $setStartD; ?></h5> </div> <div class="col-xl-3 col-sm-6 mb-3" > <div class="card dark-white bg-default o-hidden h-100 mt-3"> <div class="card-body pb-0"> <div class="class-status"><?php echo $status; ?></div> <div class="live-btn"><?php echo $livebtn; ?></div> <p class="live-class-left"><?php echo $row->name ?></p> <small><i class="far fa-calendar-alt"></i> <?php echo $setStartD; ?></small><br> <small><i class="far fa-clock"></i> <?php echo $setStartT; ?> to <?php echo $setEndT; ?></small> <img class="mr-1 float-right" src="<?php echo $CFG->wwwroot ?>/theme/iomadboost/images/mod_images/live-icon.png"> </div> </div> </div> <?php } } } } }

该错误还表明该文件被视为列表，而不是以下代码中的文件

AttributeError: 'list' object has no attribute 'read'

希望我给出了解决方案。

audiosegmentffmpegffmpegffmpegpydubpython