The one I hated the most is the spirit bomb in dalte's vid, goku just talks too muchCharacter voices are part of the sound files.
Meaning the voice is also part of other sounds. To mute them simply replayce the files with silent sound files. Ofcourse some other effects will be removed with that to.
Then again the only voice you really have is the taunts and attack names along with a moan or groan ^^;