Audio Engineering

530 Chapter 17

Tape track

Impulse due to

first transition

alone

Impulse due to

second transition

alone

Output of head

Peak

shift

(a)

Figure 17.5 : (a) Peak shift distortion can be reduced by (b) equalization in replay or

(c) precompensation.

Slimmed output pulse

Delay Delay

Out

In

(^12)
^14
1
 4
(b)
Desired timing
Precompensated
write current
Peak shift opposes
precompensation
to give desired timing
(c)