From Populous Wiki
This program, created by Nexus, edits the ambient sound effects of the game (e.g. spell incantations).
It features the following:
- Extract sound as WAV file
- Extract all sounds at once (as WAV)
- Replace sounds (supports WAV only for the moment)
- Graphical User Interface
- Details of each sound in the file
- Play the sound before extraction (preview)
The official page for the Sound Editor is as follows: 
Download of BETA version is now available!
As of 31/05/2007 there was a bug fixed.
New version released (21/08/2007)
|Level Editing:||2D Map Editor · AI Scripter (PopScript) · AI Scripter (Wildman) · Header Editor · Level Changer · Level Tester · PopEdit (2D) · Random Map Generator · Script Editor · Spell Editor · Symmetry Tool · World Editor|
|Modification:||3D Object Extractor · Background Extractor · Displacements Editor · Palette Editor · Raw Editor · Sound Editor · Sprite Editor · Sprite Extractor|
|Misc.:||Matchmaker (Reincarnated) · Matchmaker (Wildman) · Multiplayer Monitor · Trainer|