[linux-audio-user] Pulling off old 2-track reels and trying to slow them down - SOLVED

[Jesse Chappell]

On Sat, 30 Apr 2005, Alan Taylor wrote:

> The above method resulted in a file that still sounded way too fast.
> I'm not sure what I did wrong.  Knowing that I wanted to slow down my
> recording to 25% of it's orginal speed, I tried using your suggestion of
> the inverse "-by .750", I tried the normal representation of 25%
> "-by .250", and I tried going directly to 25% speed with "-to 12000".
> All resulted in a wav file that was too fast, and got even faster after
> running your python script.

Actually, since you wanted the new speed to be 0.25 of the 
original, the inverse of 0.25 = (1 / 0.25) = 4.0 ... so using -by 
4.0  then using the python script to set the sample rate to 48000  
would have also worked. 
 
But your method is effectively the same thing (in reverse) so
the end result file is the same.

Glad I could help, but it sucks that the tape was that much 
faster.  Re-recording at 96k would probably really help to 
maintain fidelity.

jlc