I've got a long standing preservation project that uses a variety of SW sound effects, sourced from the Internet, soundtrack CDs and audio captures from the movies.
I have tried to standardize the volume of these effects by subjectively altering each file so that they sound about the same (to my ear, anyway!) but this is imprecise at best.
Is there some way of batch processing these audio files so that they all end up at the same volume level? My knowledge of video manipulation is reasonable, but audio files are somewhat more challenging...
Any ideas gratefully accepted!
G