How do you gradually slow down a track?

Forum|Forum|12 years ago
July 12, 2013
3 replies
87909 views

As far as I can tell, it should work the same way as gradually changing pitch. On Adobe Audition CS6 on a Mac, gradually changing pitch is as simple as using the Time and Pitch > "Time and Stretch (process)" under the Effects menu, then switching from the iZotope plugin to the Audition plugin, and adjusting the beginning pitch and final pitch over the selected audio. Why doesn't this work with the time? I'm trying to slow down a piece of audio gradually, but it doesn't seem to work.

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Correct answer _durin_

There are a few ways to slow a portion of a track down. Use Effects > Time & Pitch > Stretch and PItch (process). If you choose the Audition algorithm, you can perform a gliding stretch which will let you stretch from 100% (normal playback) up to 800% (8x slower) over time.

If you're using Audition CC, the Pitch Bender effect will allow you to keyframe the slowdown on screen so you can draw the curve and duration you want directly on the waveform.

V

VegaVox

Participant

I would like to have the same BPM in a WAV file.
It is a live recording that slows down from a certain point on; of course pitch ought to remain the same.
Is there any way to do that?
Thanks!

S

steve.krAuthor

Known Participant

The Doppler Effect is actually coming out quite nicely now. I can just layer it on pieces of audio ever closer to the end, for example, to get a full drop-off of sound, particularly in the bass, or pump beats in and out. The plugins are doing excellent as well, so I'll have a full array of different options to present. Hopefully a consenus can be reached as to what effects to go with. Thanks for everything guys! If you ever find that "Cutting Power" preset, let me know, I'd love to try it and add it to the list.

SuiteSpot

Inspiring

You could possibly try Waves Doppler or even

http://www.expert-sleepers.co.uk/augustusloop.html

And another FX plugin that does tapestop:

http://www.sugar-bytes.de/content/products/Effectrix/index.php

S

steve.krAuthor

Known Participant

I was able to stretch it, then draw attention away from the fact that it had not stretched gradually by simply gradually lowering the pitch. It worked somewhat well, but it was not perfect. Waves Doppler is very tricky, I am still trying to figure out how to get it to work right. Meanwhile, I worry as to whether or not plugins will maintain the 192kHz 64-bit quality WAV files I am working with, but I will give the second plugin you suggested a shot since it mentioned 64-bit online, then I'll try the first one.

ryclark

Participating Frequently

My files edit in CS6 on my Mac at 32 bit, then I output them as 64 bit, or I convert files to 64 bit, then begin work on them, so yes I am speaking as to my files, not my CPU, but thanks for checking. Meanwhile, the time stretch process I detailed in my original statement above isn't working properly; it doesn't apply gradually, and yes I am adjusting it in the Audition preset, not the iZotope. I obviously need to upgrade to CC, I didn't know it came with Pitch Bender native. Thanks!

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