Audio Companion is a sound recorder allowing you to record music via the built in sound input or any sound input device connected to your computer. It will either act as a normal audio recorder or as a recorder that automatically split each song into separate files. The files may be saved as ordinary AIFF files (ready for burning an Audio CD) or saved as AAC/m4a or Apple Lossless (ALAC) files. You may also save the files as MP3 files. Access to AudioUnit effects that ships with Mac OS X as well as any third party AudioUnit effect. Advanced filtering function for removing clicks and crackles when recording old vinyl records. RIAA correction for direct connection of a turntable. Speed correction - record your old 78 records at 45 RPM.