Determining the True Azimuth in Compact Cassette Drives

In the compact cassette and duplicating business for prerecorded cassettes, the importance of accurate azimuth alignment has grown over the years. Improvements in tape technology at the one hand and in recorder electronics and magnetic heads on the other extended the frequency response of the compact cassette system far beyond 10 kHz, resulting in continuously growing demands in azimuth accuracy. Three major effects will be discussed, which influence the audibility of insufficient azimuth alignment.