Teac A-3300S - Recording with Dolby Noise Reduction

Sound On Sound Recording
(for the experienced recordist)
The technique of recording sound on sound is basically a
method for mixing the monophonic recording from one
track with a subsequent recording (generally live) on the
second track (also monophonic). This procedure can be re¬
peated from one track into the other until the noise level
(tape hiss) from successive recordings has added together to
an undesirable level, probably after five or six recordings.
1. Make a monophonic recording on the Left channel (track
1 ).
2. Rewind the tape to the beginning of the recording.
3. Connect an audio cable from the Left channel OUTPUT
jack to the Right channel LINE IN jack.
4. Insert a headphone plug into the PHONES jack and a
microphone into the MIC R (right) jack.
5. Place the RECORD - MODE L (left) switch OFF and
the R (right)switch ON.
6. Engage the Record/Pause mode by depressing the REC
and PAUSE control buttons.
7. Reduce the Left LINE Level Controls and the Left MIC
Level Control. Make a preliminary level setting with the
Right MIC Level control, using SOURCE Monitor.
8. Switch to TAPE-MONITOR, release the RECORD/
PAUSE Mode by pushing the ► button.
9. Listen only to the Left earpiece on the headphones.
10. While monitoring the Left channel with headphones,
make a mixed recording by adjusting the MIC-R and
LINE-R Level controls. Observe the VU Meter (Right)
but note that the reading will be slightly delayed because
of the distance the tape must travel from the Record
head to the Playback head.
Sound-on-sound recording step chart
NOTE 1.
For succeeding recordings, simply reverse the channels each
time, and use the alternate controls and switches.
NOTE 2.
If the LINE control does not provide sufficient adjustment
you might re-adjust the OUTPUT control to prevent satu¬
ration or to raise it to a satisfactory level for recording.
NOTE 3.
If the mixed recording on track 3 is unsatisfactory, you
may record it again, for the original material still remains
on track 1.
NOTE 4.
TEAC's optional accessory AX-10 Sound-on-Sound and
Stereo Echo Unit may be helpful to you.
ECHO Recording
The echo repetition cycle is strictly limited by the spacing
between the Record head and the Playback (monitor) head,
and by the tape speed. The higher tape speed gives the
quicker echo. Echo persistence (the number of repetitions)
depends upon the strength of recording. Persistence can be
increased by increasing the OUTPUT Level setting. Avoid
oversetting the Level for saturation will begin when the
echo becomes too strong. Set the MONITOR switch to
TAPE. Follow the directions supplied with the TEAC
AX-10 Sound-on-Sound and Stereo Echo Unit (optional
accessory).
Recording with the Dolby Noise
Reduction System.
Dolby Laboratories Inc. have developed an effective Noise
Reduction System which reduces tape noise and hiss by as
much as 10 dB. This System is available from TEAC Corp.
in its models AN-60, AN-80, AN-180, AN-300 and others.
When using a Dolby Noise Reduction unit with the TEAC
3300S, note these following points:
1. Connect the Dolby NR unit directly to the 3300S. All
audio cables from the amplifier or other sources are then
connected to the Dolby NR unit.
2. Unless specifically stated otherwise in the Dolby NR
unit's Instruction Manual, all the instructions in this
Manual are still applicable. The type of tape used in the
recording will determine the BIAS and EQ Switch posi¬
tion.
1st
2nd 3rd
MIC IN or LINE IN jack L R
L
MIC or LINE Level Control L R
L
MONITOR SELECT
Switch
SOURCE
and
TAPE
TAPE TAPE
VU Meter
L R
L
REC. MODE SELECT
Switch
Left Right
■
Left
OUTPUT
L
L
R
Headphone Left
Left
Right