The total frequency response of a magnetic tape recorder depends on the amplifier responses, the heads, and the tape. Response standards have been established by NAB and CCIR for the reproduce chain, using an -ideal- reproduce head and a prescribed post-emphasis. Techniques are discussed and data shown for calibrating the reproduce chain; the ideal reproduce head is physically realizable. The only standard for the record chain is that it must produce tapes which reproduce properly on a standard reproduce chain. Data show that the frequency-dependent response loss of the record chain may be made negligible. A record adjusting tape was chosen, and the required preemphasis derived. Wavelength-dependent losses are appreciable; their causes are briefly discussed and found to be inherent in the tape and record heads used at the present state of the art.
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can
subscribe to this RSS feed.
Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.
