Re: [LAU] Slow but pitch-correct video playback

From: Philipp Überbacher <murks@email-addr-hidden>
Date: Fri Sep 26 2014 - 15:13:24 EEST

On Thu, 25 Sep 2014 10:06:57 -0400
Rob Kudla <lau@kudla.org> wrote:

> 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

Thanks a lot Rob.
I finally came around to try this method and it sounds indeed better
than the on-the-fly methods in VLC and so on.

I find it funny that, according to Wikipedia, George Michael himself
doesn't particularly like the song (at least the lyrics). I'm not a
George Michael fan nor do I particularly like easy listening music,
quite on the contrary, but it's a nice enough song and I figured it's
not too hard to learn. Once I know how to play it I'll play
with it and interpret it anyway. Let's see how that will turn out :)

Regards,
Philipp

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Received on Fri Sep 26 16:15:02 2014

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