On 09/23/2014 02:21 PM, Philipp Überbacher wrote:
I encountered a nice piano learning video including
hands and animated
keys, but since it is playing at original speed it is way to fast for
me to learn that song. In case anyone is interested, it's this video
and I think it's rather nicely done (don't hate me for the music :P):
https://www.youtube.com/watch?v=Ej6MF5KjuOc
While it sounds like you may have found something that gets the job done, I
got better quality (to my ears) than mplayer or VLC like this:
$ ffmpeg -i careless-whisper-piano-orig.mp4 -an -b:v 1022k -vf
"setpts=(1/0.25)*PTS" careless-whisper-piano-tutorial.mp4
$ ffmpeg -i careless-whisper-piano-orig.mp4 careless-whisper-piano-tutorial.wav
$ rubberband -t4 careless-whisper-piano-tutorial.wav
careless-whisper-piano-tutorial-stretched.wav
$ ffmpeg -i careless-whisper-piano-tutorial.mp4 -i
careless-whisper-piano-tutorial-stretched.wav -c:v copy
careless-whisper-piano-tutorial-stretched.mp4
It took a while (probably 20 minutes on my underpowered laptop) but I think
this is the method I'll be using the next time I want to learn a part. Not
really a fan of this particular song, but stretched out 4:1 it sounds kind
of mellow and what artifacts I hear just make it a little bit trippy, while
making any Richard-Clayderman-esque parallel-6th abuse and other
easy-listening cliches in this arrangement less noticeable. So, that's an
improvement.
Rob