Linux Audio Plug-Ins (LADSPA) is a set of plug-ins that can be used by applications to add effects such as delays and filters. It was designed with simplicity in mind so is capable of only a limited number of effects. Nevertheless, these can be quite wide-ranging and are sufficient for a large variety of applications.
Resources
Here are some resources:
“Linux Audio Plug-Ins: A Look Into LADSPA” ( www.linuxdevcenter.com/pub/a/linux/2001/02/02/ladspa.html ) by Dave Phillips
Linux Audio Developer’s Simple Plug-in API ( www.ladspa.org/ )
User-Level Tools
LADSPA plug-ins live in a directory defaulting to /usr/lib/ladspa ...
