Audio programs can usually edit at the sample level, which is typically 44,100 times per second or 48,000 times per second. If you zoom in in ProTools, you should be able to edit at the sample level.
Video programs deal in frames. Typically 24, 25, 30, 50 or 60 fps. There's no such thing as a 13th of a frame (960/30). If you want to edit your audio with that kind of precision, use an audio editor, like ProTools.