On Sat, 16 Jan 2010, schmidtd wrote:
Also, a longer header of steady tone makes it much easier to find the start of a program if you have a recorder that can provide playback while fastforwarding and rewinding. It's much easier to hear a long tone as something distinctive when doing that than a shorter tone that might beOn Jan 16, 11:37 am, "Jayson Smith"On an unrelated topic, does the long header tone actually serve any purpose to the Apple during a read? How much tone does it actually need when reading the tape?It serves to synchronize the bit stream. You need something like 2-3 seconds to latch on to the signal.
something else. A longer tone ensures it can't be confused with anything. Michael