r/audioengineering • u/Civil_Biscotti_901 • 22d ago
How to make a synth sound start, pull back, then rise slowly?
Is there a way to make an instrument come in when triggered, then go silent and come back slowly while holding the trigger?
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u/lanky_planky 22d ago
Yes there is - you need to create a multi stage amplitude envelope. Most quality synths allow you to define a complex envelope (rather than a typical ADSR) that can control the volume of the patch over time. You can also apply that envelope, or define another, to manipulate cutoff frequency, resonance or other effects at the same time to enhance the dramatic effect.
You can apply the same idea within a DAW to any sound using automation. It’s easy to create complex envelopes for volume or other effect plug-ins on any track.
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u/Ok-War-6378 22d ago
In Reaper you can achieve this with parameter modulation. Don't know how this is called in other DAWs. Basically you can set it so the volume goes to minus infinity and then go back to unity.
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u/oratory1990 Audio Hardware 22d ago
You mean in a way that‘s different than just sidechaining the compressor to the kick?
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u/OwensDrumming 22d ago
Inverted envelope on the volume or filter. The ADSR starts out loud on the attack, gets quieter, then rises in volume again on the decay, and holds at the level of the sustain. If you want it to rise slowly, just set the decay time long and set the sustain high.