CamillaDSP vs Equaliser

CamillaDSP is a free, open-source family of tools for real-time audio processing, including active crossovers, room correction, and configurable DSP pipelines. Its engine runs on Linux, macOS, and Windows, with audio backends including ALSA, PulseAudio, JACK, WASAPI, and CoreAudio. Pipelines combine filters and mixers, with channel mixing, resampling, dynamic loudness, and chains of filter stages. Filtering includes IIR biquads and FIR filters processed through FFT/IFFT convolution; room correction can use FIR filters alongside EQ and delay adjustments. CamillaGUI is a browser interface for building and editing pipelines, monitoring levels, and applying changes live. It runs from a local backend and does not need 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. Major releases may require configuration updates, while minor releases preserve compatibility.

Equaliser is a system-wide audio equalizer for macOS that processes audio from every app automatically. It offers up to 64 parametric EQ bands, each with separate controls for frequency, gain, bandwidth or Q, and filter type. Compare Mode lets users hear adjusted settings against the original sound in real time, and 11 factory presets cover music, movies, and other uses. Listed specifications include a 1 Hz–22 kHz frequency range, sample rates up to 768 kHz, and 32-bit float processing. Equaliser can import filter settings from Room EQ Wizard; the project also supports EasyEffects import and exporting presets for sharing with Linux users. Processing happens locally, and the app says it does not record, store, or transmit audio or include analytics or telemetry. It is free and open source under GPL-3.0. The app requires macOS 15 (Sequoia) or later and an Apple Silicon Mac. It is not notarized by Apple, so macOS may require selecting Open Anyway in Privacy & Security settings.