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RealBand
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I'm wanting to use an audio sound effect clip in a mix but the clip is only 2 measures long and I need to stretch it to about 8 measures....
Just wondering if it's possible and how to do it if it is....
I've already searched the forum for an answer and didn't find anything pertaining to this question....
Thanks
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RealBand
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Joined: Dec 2005
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Backdoor answer here.
Copy, advance to audio end, paste, then same 2 more times.
Bump the measure length with the - + icon top left of track screen.
Easier to get timing right.
Last edited by seeker; 01/08/15 10:53 AM.
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RealBand
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Stretching an audio clip that much would most likely be a very bad outcome. I would copy and paste. Or save it to the loops folder and open it over 8 bars from there.
HP Win 11 12 gig ram, Mac mini Sonoma with 16 gig of ram, BiaB/RB 2026, Reaper 7, Harrison Mixbus 11 , Presonus Audiobox USB96
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RealBand
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Stretching an audio clip that much would most likely be a very bad outcome. I would copy and paste. Or save it to the loops folder and open it over 8 bars from there. I think what he's referring to by "stretching" is the Sonar way of click-dragging an audio snippet to fill a region... which is basically what you suggested doing in the rest of your reply. The only real difference is that in RB the extra step of saving the snippet as a loop is required before you can use it to fill a region. In Sonar you can declare any audio or MIDI snippet to be a "groove clip", and then as you drag it, it automatically replicates itself seamlessly as a loop. I like the fact that the RB way is consistent with the way all types of sound are generated (real tracks, user tracks, loops, midi tracks etc)... it is a consistent way of doing business across the board.
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I saw what you did there.  /*because that one thing was not my fault does not mean I am blameless */
I do not work here, but the benefits are still awesome
Make your sound your own!
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I don't like to stretch audio.
Most of the times I have attempted it, the results were not good.
I have tried copy and paste but if the sound is a held chord fading.... good luck with that... trying to match the pasted part to the end of the previous one's fade is nearly impossible. characteristics of the sound change in the fade. You end up with a held note that "jumps" at the edit point.
Using Melodyne or some other stretcher is equally disastrous. I have used it to stretch a sax note one time and that did turn out OK. It really depends on the circumstances and each time is different. Stretching a short distance..... say taking a nice quarter note and making it a half..... usually not a problem...... stretch the same quarter to 5 measures.... generally a total disaster. Reason being is a note held that long by a real player has subtle articulations in it that the stretch does NOT impart.
Using the Cakewalk groove clips is pretty seamless.... I have played around with them and yeah, they do drag out nicely. In my style of music, I don't have much use for groove clips.
On the latest song I have up currently in the User forum, I faced a similar issue on the last held chord. The real tracks had weird artifacts and I needed to pull the levels down rather quickly to avoid the majority of them being heard. That left me in the position of having a faded chord that ended unnaturally early and sounded strange. After trying several things to remedy the situation, none of which sounded any better, including regenerating the tracks, I opted to try something else.
I faded the tracks quickly to avoid the artifacts in the fade. I added a new synth track with a grand piano sample. I was thinking it would take several attempts at trying samples to get a decent match to the existing piano sound..... but as it turned out, I hit the chord on the last note and the new grand piano faded nicely.
So... the end of the story is, I try to find a way to avoid stretching audio.
You can find my music at: www.herbhartley.comAdd nothing that adds nothing to the music. You can make excuses or you can make progress but not both. The magic you are looking for is in the work you are avoiding.
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returning to the original question:
if truly STRETCHING a clip is what you want to do (all previous caveats still apply, I'm not saying its a good idea, just saying how to do it in RB)
1) hilite the clip
2) right click on the track to open the right click menu
3) select PITCH SHIFT AND STRETCH AUDIO <-- may say something a little different, my memory sucks
4) uncheck PITCH SHIFT
5) enter a percentage of stretch for the clip. For example, if you want a 2 bar clip to fill 8 bars, enter 400%
It will probably sound pretty bad though... works best on sounds that are already highly sustained pad-type sounds... because no matter what it was originally, after stretching, its gonna sound like a pad
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on a related topic, I've found the command described above to be useful in all kinds of situations. (at least, in the kind of projects I'm typically involved with)
I frequently merge multiple audio files of the same cover song and try to get them lined up. The one I consider to be the main file gets run through the ACW to tempo map it.
Subsequent audio files get dragged so they start at the same place as the 1st track. But usually, the two tracks don't remain in synch. Here's one way to force them into synch:
1) place the two clips side by side so you can compare peaks
2) hilite the 2nd track and use the PITCH SHIFT OR TIME STRETCH AUDIO command to make it about the same length as the 1st track. Let the peaks be your guide more than the actual length of the clip.
3) if both tracks don't play in unison without going out of synch, UNDO and change the stretch parameter, then restretch. Err on the side of making the 2nd track SHORTER than the first track, if all the peaks can't be lined up.
4) then work your way from start to finish, hiliting and dragging the mismatched peaks of the 2nd track to line up with the first track. This will create gaps, but we'll fix that later.
5) when the peaks are lined up in both tracks and they sound somewhat unified except for the gaps in the 2nd track, then...
6) go back thru the 2nd track and for every gap, hilite a section of audio immediately before the gap that is about the same size as the gap. Then right click > PITCH SHIFT OR TIME STRETCH AUDIO > 200%
7) that will fill the gap. But there will probably be a small artifact where the cut took place. After all of the gaps are filled...
8) hilight the whole track and EDIT > CONSOLIDATE AUDIO REGION. This will heal all of the cuts and create a unified track.
This procedure isn't going to yield high quality results, but its useful when creating Frankenstein compilations from a bunch of different source files. I've had good results by bringing the better track forward. Considering the fact that backing tracks for live performance are never going to be listened to in an audiophile environment (lots of background noise and talking, and quite often these days one or more TVs may be playing in sport bars) the imperfections and artifacts easily get lost in the environmental noise.
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