Sound Forge. Sound Forge adds sound effects to sounds and records sound from the Mac and is one of the most powerful audio production programs. The program extracts sounds and cuts sounds and integrates them. It also extracts sounds from the following audio and video files: WAV, WMA, RM, AVI, and MP3. It works great and the program is great for everyone who tried it and I would recommend it. Another special release is Sound Forge Audio Studio, which specializes in editing, editing and adding effects.