Как вытащить audio-поток из live youtube-трансляции?

youtube-dl -F https://www.youtube.com/watch?v=K59KKnIbIaM
[youtube] K59KKnIbIaM: Downloading webpage
[youtube] K59KKnIbIaM: Downloading video info webpage
[youtube] K59KKnIbIaM: Extracting video information
[youtube] K59KKnIbIaM: Downloading m3u8 information
[youtube] K59KKnIbIaM: Downloading MPD manifest
[info] Available formats for K59KKnIbIaM:
format code  extension  resolution note
91           mp4        256x144    HLS  197k , avc1.42c00b, 30.0fps, mp4a.40.5@ 48k
92           mp4        426x240    HLS  338k , avc1.4d4015, 30.0fps, mp4a.40.5@ 48k
93           mp4        640x360    HLS  829k , avc1.4d401e, 30.0fps, mp4a.40.2@128k
94           mp4        854x480    HLS 1380k , avc1.4d401f, 30.0fps, mp4a.40.2@128k
95           mp4        1280x720   HLS 2593k , avc1.4d401f, 30.0fps, mp4a.40.2@256k (best)