If you have ffmpeg, youtube-dl will let you mix and match any audio and video stream you choose, giving you a lot of options that hooktube simply doesn't. For

If you have ffmpeg, youtube-dl will let you mix and match any audio and video stream you choose, giving you a lot of options that hooktube simply doesn't. For instance you can combine a very small low quality video stream with a high quality audio stream, if you know you're mostly just going to be listening to the video.