download audioset

download.py

import youtube_dl

meta_data = ... # from somewhere

count = meta_data[0]
info = meta_data[1] 
url = 'http://youtu.be/{}'.format(info['YTID'])

output_audio_path = './audio/{}.wav'.format(str(count))

ydl_ops = {
    'format': 'bestaudio/best',
    # 'postprocessors': [{
    #     'key': 'FFmpegExtractAudio',
    #     'preferredcodec': 'mp3',
    #     'preferredquality': '192',
    # }],
    'outtmpl':output_audio_path,
    'external_downloader': 'ffmpeg',
    'external_downloader_args': ['-i', output_audio_path, '-ab', '192k', '-f', 'mp3', '-ss', str(info['start_seconds']), '-t', '10',],
}
with youtube_dl.YoutubeDL(ydl_ops) as ydl:
    ydl.download([url])