- cl-collider - cl-collider is an interface to the SuperCollider audio synthesis server
- cl-fftw3 - cl-fftw3 provides a CFFI interface for Common Lisp programs to use the FFTW3 Fourier transform library
- cl-jointgen - CL-JOINTGEN is a Common Lisp implementation of the Joint Generation Algorithm for computing the dual of a monotone boolean function
- d4-wavelet-transform - An implementation of the D4 wavelet transform for Common Lisp
- Incudine - Incudine is a music/DSP programming environment for Common Lisp
- SOUNDLAB - Lazy signal synthesis based on combinators
signal processing