Top 4 C Effect Projects

arduino-audio-tools

9 664 9.3 C

Arduino Audio Tools (a powerful Audio library for not only Arduino)

Project mention: A Low Latency Guitar Effects Processor Suitable for Running on a Raspberry Pi | news.ycombinator.com | 2023-03-07

I use an ESP32-A1S board for that. I use this project https://github.com/pschatzmann/arduino-audio-tools/ and the platformIO vscode plugins.
Have a look at this example to see how easy using that library is :
JDSP4Linux

14 436 6.7 C

An audio effect processor for PipeWire and PulseAudio clients

Project mention: Found a really good video for mic quality improvement in obs (it works for me). How would I apply these settings to my mic system wide? Using Linux Mint | reddit.com/r/linuxaudio | 2023-01-13

PulseAudio/pw-pulse does not have a DSP host, but there is easyeffects/pulseffects and jamesdsp that has some DSP plugins. Not all the DSP you want may be available for processing audio
SonarQube

www.sonarqube.org
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JamesDSPManager

3 263 10.0 C

Audio DSP effects build on Android system framework layer. This is a repository contains a pack of high quality DSP algorithms specialized for audio processing.

Project mention: JamesDSP | news.ycombinator.com | 2023-03-25
RootlessJamesDSP

8 184 10.0 C

An implementation of the system-wide JamesDSP audio processing engine for non-rooted Android devices

Project mention: Is Apple Music good? | reddit.com/r/headphones | 2023-02-27

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-03-25.