Sonic Stage is required for sound to work for some audio types,
though if you have windows and you have played most of the gamethen most of the audio is decoded under the jpcsp/tmp/<gameID> folder just copy that over to linux and it should be able to play it back without sonic stage.
though if you have windows and you have played most of the gamethen most of the audio is decoded under the jpcsp/tmp/<gameID> folder just copy that over to linux and it should be able to play it back without sonic stage.
Try Out JPCSP Launcher v1.8.0.4 | How to post a log