I am working on an implementation for managing thousands of IVR within an organization. Right now, I am storing all audio files in wav format, but it quickly become unmanagable because the size of these wav files ( 8 bits mono ) quickly consuming a lot of the disk space.

Is there anyway I can store those audio files and still have high quality audio for IVR? I know mp3 is smaller but freeswitch does not support it.