76 R-K711Term Meaning PageAAC An abbreviation for “Advanced Audio Coding”. This isa compression standard that applies only to the audiocomponent in image compression methods used for digitalbroadcasting, etc.23Bit rate A number indicating the amount of information processedper second. The higher the bit rate, the better the soundquality.23CD-DA Refers to music CDs. Almost all discs normally referred to as“CDs” are actually CD-DA discs.22CD-TEXT A generic name for music CDs that contain text informationsuch as the disc name, artist names and track names.29MP3 An audio compression method developed by Germany’sFraunhofer IIS that achieves high rates of data compressionby discarding data that is not readily audible by humans. MP3can compress data down to rates of approximately 1/11 (128kbps) while retaining sound quality equivalent to a music CD.23SamplingfrequencyA number that indicates the number of times per second thatanalog signals are sampled for conversion to digital signals.The sampling frequency for music CDs is 44.1 kHz. Normally,the higher the sampling frequency, the better the soundquality.23WMA An abbreviation for the “Windows Media™ Audio” audiocompression and encoding system developed by MicrosoftCorporation of the U.S.23Glossary of Terms