Increase wav file tempo

SONAR
Increase wav file tempo

2012/12/16 21:17:04

bluearrows

I need to increase the tempo of a track.I have imported a wav file its 3 minutes long and the only track i need.I need to increase the tempo from about 70 bpm to about 80,whats the best way to do this.

Thanks Justin

2012/12/17 02:53:26

mike_321

You should open up AudioSnap, select all transients and mess around with the settings until you get a good enough result. It's likely to not be perfect though, as it's wav. The only way to get perfect tempo changes is with MIDI... See http://www.youtube.com/watch?v=m2eecggyVr0 for more info + whatever else you can find on the topic (video is in what looks like SONAR 8.5, but the plug-in is the same as X1 and X2).

2012/12/17 09:56:28

MarioD

I use the free Audacity http://audacity.sourceforge.net/
to increase or decease wav tempos. Just remember that if you go to far either way you will get into artifacts.

2012/12/17 23:54:41

gswitz

You can also just Process Audio and change the length.

2012/12/18 03:55:40

mike_321

^ True that, or select Smart Tool, ctrl+click the right-hand edge of the track and increase its length to what is required (up to 400%). This however introduces hella artifacts. A cool effect if that's what you're after, but definitely not a viable option if you want to increase the tempo of an actual finished song and maintain audio fidelity...

2012/12/18 09:28:41

garrigus

mike_321

^ True that, or select Smart Tool, ctrl+click the right-hand edge of the track and increase its length to what is required (up to 400%). This however introduces hella artifacts. A cool effect if that's what you're after, but definitely not a viable option if you want to increase the tempo of an actual finished song and maintain audio fidelity...

When stretching audio in SONAR that way, it uses the AudioSnap algorithm. To get a higher quality, stretch the audio, choose an appropriate algorithm, and then bounce the audio to hear the result.

Scott

--
Scott R. Garrigus - http://garrigus.com
* Author of the Cakewalk Sonar and Sony Sound Forge Power book series: http://garrigus.com/?PowerBooks
* Author of the Cakewalk Sonar ProAudioTutor video tutorial series: http://garrigus.com/?ProAudioTutor
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2012/12/18 14:41:55

Kalle Rantaaho

...but to increase the tempo, the clip must be shrunk, not stretched. I think shrinking causes less artefacts than stretching.

2012/12/19 03:09:14

mike_321

lol, true that Kalle, my bad! It does indeed... Thank you, Scott!

Increase wav file tempo

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