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Audacity will easily change pitch & tempo simultaneously for you - it's "Change Speed" in the Effect menu.I am guessing it should be slowed down by 20-25 % to sound right. Here it is slowed down by 22% so it lasts about 3min 52 sec. I used audacity to change tempo without changing pitch. I don't have software that changes tempo and pitch. Here is the slowed-down version.
bixography.com/JKaufmanWeakness7BlueBabiesSlowed22%.mp3
Better? I think so. Compare with original.
bixography.com/JKaufmanWeakness7BlueBabies.mp3
Albert
Albert
I've just had a play around with this myself, and guess what key the Dornberger Tiger Rag is in when you run it at around 74 RPM (assuming that YouTube clip is 78.26 etc.) - why, it's in B Flat!Vince told us that Dornberger's "Tiger Rag" was recorded slower and played back faster: this resulted in an increase in pitch of one semitone.
Using the pitch shift calculator, I computed that if played at 78.26 rpm (and thus one semitone higher), the original recording must have been done at 73.85. Therefore, the recording was originally made (73.85-78.26)/78.26 x100 or 5.64 % slower than played back on a 78.26 rpm machine.
I recorded the file from http://www.youtube.com/watch?v=nNNVSE0b_E0
Audacity has two very useful apps: change tempo without changing pitch, and changing pitch without changing tempo. So in a two step-manipulation (both using SoundTouch), it is possible to return the file to its original speed (and pitch). Step one: change tempo by -5.64 % withouth changing pitch. Step two: decrease pitch by one semitone without changing tempo. So here is the recording from you tube "played" at 73.85 rpm and a semitone lower, the way it was recorded originally.
bixography.com/TigerRagDornbergerSlower.mp3
Compare to the above file in youtube.
Vince, does the resulting, slowed-down and pitch-corrected file sound right to you?
Albert
For some reason, I was under the impression that the change in speed function in audacity could only be done between the standard values of 33, 45 and 78 rpm. I had not noticed the box "percent change." That makes it very easy. So now we have three procedures to modify speed (which changes both in tempo and pitch).Audacity will easily change pitch & tempo simultaneously for you - it's "Change Speed" in the Effect menu.
That's one way to do it, here's another one (which is the one I use):
Plug the appropriate numbers into this equation:
(Desired Speed / Original Sampled speed) x File's Sampling Rate.
eg. (75 / 78.26) x 44100 = 42262.5
(80 / 78.26) x 44100 = 45080 (exactly - provided you express 78.26 as 3600/46, which is what it actually is )
Then in Audacity, Click on your Audio Track's name (next to the little X that deletes your track), and choose Set Rate --> Other. Put your result from the above equation in the box that comes up (rounding to a whole number as appropriate). Your file will now sound the way you want it to, but if you intend to save it, go up to Tracks --> Resample and Resample to 44100 Hz for the sake of compatibility with, well, everything else.
(This is exactly the same process Change Speed uses but it just provides an interface for it. I prefer to do it manually, and have built an excel file where I just plug in the 3 known numbers and it works out the unknown number )