A New Equalization Characteristic for Master Tape Recording
Master tape recorders, running at 15 inches per second and using NAB equalization, are capable of providing a 55 db signal to noise ratio (peak record level to unweighted noise). Existing disc recording techniques had improved to a point where the audible master tape hiss became objectionable, especially during low level program material. An investigation of this problem resulted in a new equalization that reduces the hiss by 6 db. This work was done prior to the disclosure of the Ampex Master Equalization (AME).* It is gratifying to note the agreement in broad areas between Ampex and CBS data.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.