Best way to suppress transients in reverb/delay
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- KVRAF
- 4345 posts since 20 Feb, 2004
Okay, here's the deal: I have a delay and reverb on a source with a percussive attack. I want to prevent said initial percussive attack from making obvious "doot doot doot doot" repeats in the delay and reverb audio output.
What's the best way to do this? Use a delay with a ducker?
What's the best way to do this? Use a delay with a ducker?
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- KVRAF
- 2784 posts since 18 Apr, 2001
The obvious solution, to me, is to put a transient shaper in front of the delay. This will, of course, only work if you have the delay/reverb on a send or parallel channel.
I don't think ducking will give you the result you're after.
I don't think ducking will give you the result you're after.
CrimsonWarlock aka TechnoGremlin, Moved to Reason and Rack Extensions exclusively (from Reaper and VSTs) several years ago.
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- KVRAF
- Topic Starter
- 4345 posts since 20 Feb, 2004
Ah yes, of course!crimsonwarlock wrote: Fri Jun 20, 2025 9:14 am The obvious solution, to me, is to put a transient shaper in front of the delay. This will, of course, only work if you have the delay/reverb on a send or parallel channel.
I don't think ducking will give you the result you're after.
Thanks, that should be what I'm looking for
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- KVRAF
- 16890 posts since 8 Mar, 2005 from Utrecht, Holland
Use a reverb instead of, or chained after the delay? 
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- KVRAF
- 6486 posts since 8 Jun, 2009
Don't send the delay to the reverb, or at least send less (ie put the delay on a different bus).
And/or high-pass the input into the reverb - a lot of the most obvious transient information that will make it through the the reverb will be from the low-end frequencies
And/or high-pass the input into the reverb - a lot of the most obvious transient information that will make it through the the reverb will be from the low-end frequencies
- KVRian
- 631 posts since 10 Jan, 2017
If the delay and reverb are on sends, the first thing I'd try would be a simple low pass filter before the FX.
- KVRAF
- 2784 posts since 18 Apr, 2001
Just FYI, in the Reason world there is a delay Rack Extension, especially aimed at this. It's a delay with a built-in transient-splitter. Maybe you can get some inspiration from that one:
CrimsonWarlock aka TechnoGremlin, Moved to Reason and Rack Extensions exclusively (from Reaper and VSTs) several years ago.
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- KVRer
- 20 posts since 18 Sep, 2021 from Raleigh, NC
I’ve don’t the transient shaped thing but another good way is to get a really smeary short reverb. We’re talking only early reflections but pretty controllable so you can adjust to taste. Process it. On a second track likely depending on DAW you’re using. Then shift them to be atop the transient or even before. We’re talking samples here. It will smear/soften the transient.
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- KVRAF
- Topic Starter
- 4345 posts since 20 Feb, 2004
So, you're talking about bouncing the reverb send to audio, then adjusting its offset to smear things with the dry signal?ohsomiggz wrote: Fri Jun 20, 2025 7:31 pm I’ve don’t the transient shaped thing but another good way is to get a really smeary short reverb. We’re talking only early reflections but pretty controllable so you can adjust to taste. Process it. On a second track likely depending on DAW you’re using. Then shift them to be atop the transient or even before. We’re talking samples here. It will smear/soften the transient.
Could you give me an example of a reverb plugin and settings that you'd use here? Thanks!
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- KVRer
- 20 posts since 18 Sep, 2021 from Raleigh, NC
I’ve used Fabfilter pro R2 to do this. I don’t have waves r-verb but it has good early reflections control. You could also use my plugin Marco with the profile all the way to the right and color toggled on and blend the mix knob.
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- KVRist
- 217 posts since 13 Nov, 2010 from Kyiv, Ukraine
you can use more DIFFUSION. BUT for percussion it can ruin the sound.JerGoertz wrote: Fri Jun 20, 2025 8:59 am Okay, here's the deal: I have a delay and reverb on a source with a percussive attack. I want to prevent said initial percussive attack from making obvious "doot doot doot doot" repeats in the delay and reverb audio output.
What's the best way to do this? Use a delay with a ducker?
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- KVRAF
- Topic Starter
- 4345 posts since 20 Feb, 2004
Looks sweet, thanks for showing me thisohsomiggz wrote: Sun Jun 22, 2025 12:04 pm I’ve used Fabfilter pro R2 to do this. I don’t have waves r-verb but it has good early reflections control. You could also use my plugin Marco with the profile all the way to the right and color toggled on and blend the mix knob.
I'll give that a try (it's not a percussion sound per se, more of a bell)andivax wrote: Sun Jun 22, 2025 1:18 pm you can use more DIFFUSION. BUT for percussion it can ruin the sound.
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- KVRer
- 12 posts since 6 Apr, 2025
Almost full wet & very minimal feedback
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- KVRian
- 502 posts since 3 Feb, 2018
The best effect would be to not have any transient going into the reflection.
Put the reverb on separate or send channel, add something like Volumeshaper in front of it and let it be triggered by the transient of the source (or better yet, midi notes).
That way you have a lot of control over how you cut out the transient and don’t have to mess with the reverb signal.. at least not to mask that transient. And you don’t have to bounce the reverb to work with it either.
Put the reverb on separate or send channel, add something like Volumeshaper in front of it and let it be triggered by the transient of the source (or better yet, midi notes).
That way you have a lot of control over how you cut out the transient and don’t have to mess with the reverb signal.. at least not to mask that transient. And you don’t have to bounce the reverb to work with it either.
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- KVRist
- 217 posts since 13 Nov, 2010 from Kyiv, Ukraine
also you can use transient shaper before reverb and kill that transients by reducing "attack" parameter. I would recommend Kilohearts and Assault Audio plugins.lwj wrote: Wed Jul 02, 2025 7:40 pm The best effect would be to not have any transient going into the reflection.
Put the reverb on separate or send channel, add something like Volumeshaper in front of it and let it be triggered by the transient of the source (or better yet, midi notes).
That way you have a lot of control over how you cut out the transient and don’t have to mess with the reverb signal.. at least not to mask that transient. And you don’t have to bounce the reverb to work with it either.
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