A Ladspa Work-Bench For The Emacspeak Audio Desktop

Module ladspa.el in the Emacspeak GitHub repository implements a high-level interface for experimenting with Ladspa Plugins using MPlayer and SoX.

This module implements the following functionality:

1. Builds up a table of installed Ladspa plugins along with their associated metadata.
2. Command M-x ladspa displays installed Ladspa Plugins in a special *Ladspa* buffer.
3. Plugins can be instantiated by pressing RET.
4. Instantiating a plugin prompts for its arguments and displays the instantiated plugin in a new buffer.
5. This plugin can then be applied to a running MPlayer media stream by pressing a.
6. The effect can be deleted by pressing d.
7. Plugin parameters can be edited by pressing e with point on the parameter to edit.

Module sox.el implements an Audio Workbench using SoX. Module ladspa.el integrates with that module by allowing the addition of ladspa as a supported SoX effect. Adding a ladspa effect results in a completion interface for picking one of the available Ladspa plugin; once selected, that plugin then prompts for its parameters as needed.