CamillaDSP is a free, open-source family of tools for real-time audio processing on Linux, macOS, and Windows. It can split audio into crossover bands, apply room correction, and assemble advanced DSP pipelines. The engine chains filters and mixers, and supports channel mixing, resampling, dynamic loudness, IIR biquad filters, and FIR filters processed with FFT/IFFT convolution. Room correction can combine FIR correction filters with EQ and delay adjustment. Audio backends include ALSA, PulseAudio, JACK, WASAPI, and CoreAudio. CamillaGUI is a browser interface for building and editing pipelines, monitoring levels, and applying changes live; it runs through a local backend and does not require an internet connection. For automation, pyCamillaDSP connects to a running engine over its WebSocket API, which must be enabled with the -p flag. The software is available under GPL version 3 or Mozilla Public License 2.0; an ASIO backend build is GPLv3 only.
Who it is for
CamillaDSP suits people building audio crossovers, room correction, or custom DSP pipelines. The GUI offers local browser control, while pyCamillaDSP supports automation integrations.
What is good
- Free software under GPLv3 or MPL 2.0.
- Runs on Linux, macOS, and Windows.
- Supports several audio backends.
- GUI works locally without an internet connection.
- Supports FIR room correction with EQ and delay.
What to know first
- The ASIO backend build is GPLv3 only.
- Major releases may require configuration updates.
- pyCamillaDSP requires the WebSocket server enabled with -p.
Verdict
CamillaDSP offers a broad real-time processing pipeline with a local browser GUI and Python integration. Be prepared to manage configuration changes for major releases and enable the WebSocket server for pyCamillaDSP.
Compared on audio equalizer software
- Free plan
- Yes
- System-wide control
- Yes
- Parametric EQ
- Yes
- Desktop operating systems
- both
