rxfox3
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Slow down audio tracks?
This may be the weirdest question of the day..... or not
Is there a way to slow down a completed song without changing the pitch of it? It's all audio no midi and I only need to slow it down from around 120BPM to 118BPM
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garrigus
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RE: Slow down audio tracks?
2008/05/30 19:09:49
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brundlefly
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RE: Slow down audio tracks?
2008/05/30 19:17:16
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Second one today. To paraphrase Jose7822's correct answer to the first one:
Enable AudioSnap on all clips (Ctrl+A, then F12). Enable the Follow Tempo (a.k.a. Autostretch) button in the AudioSnap palette, and then change the initial tempo of the project.
To get the best results, you will need to bounce all the audio down with the appropriate "offline" stretching algorithm (see the User Guide for more info). Even then you may find that AudioSnap introduces audible distortions/phasing that are not acceptable.
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rxfox3
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RE: Slow down audio tracks?
2008/05/30 19:33:49
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Got scotts bock right here. I will read the section on Audio Snap. thanks!
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chrisby
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RE: Slow down audio tracks?
2008/05/30 20:08:17
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ORIGINAL: rxfox3
Got scotts bock right here. I will read the section on Audio Snap. thanks!
If you think of it after you're done please post back and say how it went. It's something I've thought about doing on occasion but always thought the results might sound weird. Obviously the more you stretch the more likely it will not sound right but just curious if bringing it down 1-2% like you are proposing works out. Thx...
post edited by chrisby - 2008/05/30 20:29:02
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Oaf_Topik
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RE: Slow down audio tracks?
2008/05/30 20:17:32
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You might want to try the MPEX Time/Pitch algorithm.
I've used it very successfully to do what you're looking for.
Highlight Track - Go to Process = Audio Effects - Cakewalk - Time/Pitch Stretch 2: Change the time, but leave the pitch alone - Under Advanced select MPEX - Best ensemble polyphonic - Under Mixing select: Process In Place, Stereo Result.
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rxfox3
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RE: Slow down audio tracks?
2008/05/30 20:20:06
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I am still new. Is there a algorithm setting , or am I looking for third party software?
Yes I will give it a try and post results.........
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Oaf_Topik
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RE: Slow down audio tracks?
2008/05/30 20:21:42
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It comes with Sonar Producer. Follow what I said above.
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HotCoollMusicGirl
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RE: Slow down audio tracks?
2008/05/30 20:31:12
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(I might catch hell for this suggestion but) if you've got a finished mix, an alternative might be to download an evaluation copy of Reaper, bringing the mix into it, and playing with its pitch-constant varispeed and different time stretch/pitch shift algorithms.
post edited by HotCoollMusicGirl - 2008/05/30 20:52:32
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rxfox3
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RE: Slow down audio tracks?
2008/05/30 20:42:50
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I will do soem reading onight from scotts book on audio snap and will give it a try. This can undo this right?
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HotCoollMusicGirl
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RE: Slow down audio tracks?
2008/05/30 20:46:17
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Audio snap is undoable.
BUT.....
I'd strongly advise you to clone the track first, just in case. AS can be a little finicky, especially on longer clips.
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garrigus
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RE: Slow down audio tracks?
2008/05/30 21:02:36
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Cakreshvara
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RE: Slow down audio tracks?
2008/05/31 02:42:17
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HotCoolMusicGirl.
I think you are not to catch the hell for recommending the Reaper program. Only you will catch the hell from anyone insecure. Music environment is like the garland which is only made more splendid by the variation of the flowers. Reaper midi is the light years behind Sonar midi, but in other aspects is light years ahead. I am hoping that Reaper will fix midi.
The Elastique analog in Reaper is excellent for the time and tempo shift and you have properly referred musicians to a viable program. Reaper is far more solid in building textured vsti layering. So many times I am using the Sonar7 producer secondary to Reaper to benefit from the excellent midi functions of Sonar. The virtual cables make all programs synchronized properly and Sonar can fill the functions that are not yet developed in Reaper when Reaper is used as main DAW.
You are not burning in the hell but have recommended critical application with fraction cost to those of open mind. Thank you for needed information. Sonar 7 is great and can coexist in larger environment since no one program will give all that is needed to the individual.
Namaskar,
Cakreshvara
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Roflcopter
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RE: Slow down audio tracks?
2008/05/31 02:56:39
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I think even Audacity's tempo shifter will do a 2BPM change without too much trouble. That's a free program, BTW.
I'm a perfectionist, and perfect is a skinned knee.
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Geokauf
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RE: Slow down audio tracks?
2008/05/31 09:39:02
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ORIGINAL: rxfox3
This may be the weirdest question of the day..... or not
Is there a way to slow down a completed song without changing the pitch of it? It's all audio no midi and I only need to slow it down from around 120BPM to 118BPM
Hello, 120 to 118 is a 2% reduction. I would mix my project down at the 120 tempo (as is) then open the mix in Sound Forge and apply a 2% time compression (plug-in: "time stretch"). 2% time compression shouldn't produce any noticeable artifacts. I wouldn't waste my time with Audiosnap for a "post-pro" operation. GK
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spindlebox
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RE: Slow down audio tracks?
2008/05/31 09:56:47
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I think even Audacity's tempo shifter will do a 2BPM change without too much trouble. That's a free program, BTW. +1 to Audacity; I've used it on samples that I've used in songs. I've been able to change free loops' tempo to match tempo in my project without altering pitch quite seamlessly. Also, I've been able to change their pitch to a pre-determined pitch using it; i.e., from A to C-. There are lots of things you can do with it. It's a pretty incredible program for free. I use it quite frequently as part of my DAW workflow.
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brundlefly
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RE: Slow down audio tracks?
2008/05/31 14:58:39
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120 to 118 is a 2% reduction. I would mix my project down at the 120 tempo (as is) then open the mix in Sound Forge and apply a 2% time compression To be more precise, it's closer to 1.7%, and it would be a stretch of the audio (to 101.7% of the original length), rather than a compression.
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RTGraham
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RE: Slow down audio tracks?
2008/05/31 17:09:31
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ORIGINAL: Cakreshvara
HotCoolMusicGirl.
I think you are not to catch the hell for recommending the Reaper program. Only you will catch the hell from anyone insecure. Music environment is like the garland which is only made more splendid by the variation of the flowers. Reaper midi is the light years behind Sonar midi, but in other aspects is light years ahead. I am hoping that Reaper will fix midi.
The Elastique analog in Reaper is excellent for the time and tempo shift and you have properly referred musicians to a viable program. Reaper is far more solid in building textured vsti layering. So many times I am using the Sonar7 producer secondary to Reaper to benefit from the excellent midi functions of Sonar. The virtual cables make all programs synchronized properly and Sonar can fill the functions that are not yet developed in Reaper when Reaper is used as main DAW.
You are not burning in the hell but have recommended critical application with fraction cost to those of open mind. Thank you for needed information. Sonar 7 is great and can coexist in larger environment since no one program will give all that is needed to the individual.
Namaskar,
Cakreshvara
My goodness, what a Karmic post.  As long as we're recommending third-party solutions, you might want to try Melodyne (on either a per-track or full-mix basis) or Live (for the full mix). My best results for this type of thing have been either Live on the full mix, or Melodyne on a per-track basis. AudioSnap is handy for working quickly within SONAR without leaving the program, but as HotCoollMusicGirl indicated, it can occasionally misbehave in funny ways.
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Cromberger
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RE: Slow down audio tracks?
2008/05/31 17:55:42
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ORIGINAL: rxfox3
This may be the weirdest question of the day..... or not
Is there a way to slow down a completed song without changing the pitch of it? It's all audio no midi and I only need to slow it down from around 120BPM to 118BPM
Hi, rxfox3, I've got to second what Oaf_Topik said, above. Before you go to the trouble to try Audio Snap or 3rd party programs, give the Cakewalk Time/Pitch Stretch 2 utility a try. It should work fine for a minor tempo adjustment such as the 120-to-118 bpm you are looking for. It's really easy to use, it's fast (if you apply it to a stereo mix) and, in my personal experience, it does a fine job for small changes. I also use it regularly to slow down songs by 50% while retaining the original pitch for figuring out guitar solos and the like. While you couldn't use the resulting file for an audio project, the result is plenty good enough for this purpose. A small increment such as yours *should* work without any audible degradation. And, if it doesn't work to your satisfaction, you can still go the Audio Snap route, or try any of the third party apps that have been mentioned above. Good luck with your project! Best regards, Bill
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Geokauf
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RE: Slow down audio tracks?
2008/05/31 18:15:49
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ORIGINAL: brundlefly
120 to 118 is a 2% reduction. I would mix my project down at the 120 tempo (as is) then open the mix in Sound Forge and apply a 2% time compression
To be more precise, it's closer to 1.7%, and it would be a stretch of the audio (to 101.7% of the original length), rather than a compression.
Hello, "To be more precise..." You are too kind. My berry berry bad. You are correct. Of course he needs it to be slower. Confirmed 1.7% my calculator was set to two places. I would have caught my own mistake (hopefully) because I have to deliver audio that is an exact length in which case the clip would have been too short. GK
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brundlefly
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RE: Slow down audio tracks?
2008/05/31 22:22:38
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Yeah, no big deal. I figured you would have gotten it right yourself. I just wanted to make sure the OP didn't get off track, thinking that was the exact procedure. 
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