I currently use a fine shareware product called GoldWave for my rather simple needs regarding editing sound files.

However, I recently have accumulated about 80 voice files of lectures that have a strong hum in them due to sound system problems. GoldWave can do the elimination, but only 1 file at a time. Too time consuming.

Does anyone know of a program that could process these files in a batch to reduce hum?

Thanks in advance for any help!