Oberheim Matrix-12 User Manual

4. Record Level Control - It is equally important to be able to control the
volume of the data signal while it is being recorded onto tape. Too high of a
level will distort the signal and too low of a level will not provide enough
playback volume to drive the CASSETTE circuit. A VU Meter or Record
Level indicator LED is necessary for you to visually set the record level.
Many cassette recorders have an "ARL" (Automatic Record Level) feature
which automatically sets the record volume to its optimum level. ARL
replaces the need for a separate record control and meter and will simply
use a record LED indicator. Both of these methods work just as well.
Options
5. Record/Play Tone Control - If your cassette machine has a tone
control, set it to its half setting. A tone control is helpful but not absolutely
essential.
6. Tape Counter - Since you will be able to fit many banks of data on one
cassette, a 3-digit tape counter to index where the data starts and ends will
be helpful.
7. AC Adaptor - Most cassette recorders made today have a jack for an
optional AC adaptor. You may want to consider getting one to insure
proper tape speed. Making a tape with low batteries means that the tape
will not play back properly when fresh batteries are used. An AC adaptor is
also convenient in that you wont have to replace the batteries every few
days.
You Will Also Need...
8. Tape - A good quality grade of tape can make the difference between
consistent successful data transfers and total frustration. You don't have to
buy the expensive premium tape but stay away from the 3-for-99c-drug-
store "specials" too. You want a tape that is made from good materials -
dropouts on the tape or an inconsistent tape surface will cause nothing but
problems.
You should also use a tape that is "biased" for the machine that you are
using. Chrome or metal tape will not usually work on most portable cassette
recorders. Some experimentation may be required here. Special
"computer" data tapes, as another example, should be used only on
computer data recorders. This type of tape, however, has the advantage of
being short, leaderless and certified to be free of dropouts.
9. Connecting Cables - Your cassette interface system requires two
standard audio cables in order to connect the tape recorder to the
MATRIX-12. The cable must be "2-conductor sheilded" with a 1/8"
mini-plug on the MATRIX-12 end.
Do not use "attenuating" type cables as these are designed to reduce the
signal from one end of the cable to the other.
HOOK-UP
Connect one of your cables from the cassette's output jack (earphone,
headphone or speaker) to the jack on the MATRIX-12 labeled from.
Matrix-12 Owner's Manual 73

Oberheim Matrix-12 Specifications

General

Brand	Oberheim
Model	Matrix-12
Category	Synthesizer
Language	English