gistfile1.txt

def extract_audio(video_id,videos_dir, audios_dir):
    """
    Download the videos
    Parameters
    ----------
    video_id : str
        A Youtube video id. 
    videos_dir: str
        The directory which stores videos.
    audios_dir: str
        The directory which stores audios.
        
    """
    
    video_path = f'{videos_dir}/{video_id}.mp4'
    audio_path = f'{audios_dir}/{video_id}.mp3'
    
    #-i: it is the path to the input file. The second option -f mp3 tells ffmpeg that the ouput is in mp3 format. 
    #-ab 192000: we want the output to be encoded at 192Kbps 
    #-vn :we dont want video. 

    # execute the command
    cmd = f'ffmpeg -i {video_path} -f mp3 -ab 192000 -vn -y {audio_path}'.split(" ")
    subprocess.call(cmd, shell=False)