# Help making formant preservation dsp
**URL:** https://qa.fmod.com/t/help-making-formant-preservation-dsp/16903
**Category:** FMOD Studio
**Created:** [March 18, 2021, 8:11pm UTC](https://qa.fmod.com/t/help-making-formant-preservation-dsp/16903 "2021-03-18T20:11:26Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@FFIVGUY](https://qa.fmod.com/u/FFIVGUY)
#### Post date: [March 18, 2021, 8:11pm UTC](https://qa.fmod.com/t/help-making-formant-preservation-dsp/16903/1 "2021-03-18T20:11:26Z")
I have recently discovered that you can make custom dsp for FMOD Studio. I’ve read through the tutorial [here](https://fmod.com/resources/documentation-api?version=2.0&page=white-papers-dsp-architecture.html) but I’m trying to make a custom dsp for formant preservation for the auto-pitch effect rather than fade, echo, reverb, and delay which is what is explained in the tutorial. I hope somebody can help me with this.
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### Author:  [@DocRace](https://qa.fmod.com/u/DocRace)
#### Post date: [March 23, 2021, 12:34pm UTC](https://qa.fmod.com/t/help-making-formant-preservation-dsp/16903/2 "2021-03-23T12:34:36Z")
The same question.
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### Author:  [@richard\_simms](https://qa.fmod.com/u/richard_simms)
#### Post date: [March 31, 2021, 3:31am UTC](https://qa.fmod.com/t/help-making-formant-preservation-dsp/16903/3 "2021-03-31T03:31:14Z")
The creation of a DSP, especially one as large and complicated as a formant preservation DSP, is a bit outside the scope of this forum. It requires an understanding of psychoacoustics, deciding which formants to preserve, and the actual C++ know-how to create such a DSP.
You might have more luck searching for assistance in a C++ programming forum somewhere.
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### Author:  [@FFIVGUY](https://qa.fmod.com/u/FFIVGUY)
#### Post date: [April 2, 2021, 4:29pm UTC](https://qa.fmod.com/t/help-making-formant-preservation-dsp/16903/4 "2021-04-02T16:29:10Z")
Thanks for the insight. I’ll look into it.