Philips N 7150 - Advanced Recording Techniques; Monitoring During Recording; Introduction to Recording; Recording Process

sockets. This may be useful when you want to record on two
recorders at the same time: connect the second recorder to these
monitor outputs.
Adjustable output level for the line-out and monitor sockets @
The output voltage of the line-out 6d and monitor @§ output sockets
may be adjusted with the aid of line-out level control @ so as to
allow the recorer playback level to be adapted to that of other
sound sources conneted to the amplifier, so that the playback
volume of the recorder and for example the tuner is the same.
Monitoring during recording
During recording it is possible to monitor what is going onto the
tape. This can be done either through headphones cnnected to
socket @9 or via an amplifier connectd to the line-out @9 or monitor
sockets @9.
Monitoring through headphones is of advantage when making
microphone recordings since it averts the danger of the mi-
crophone —cking up sound from the loudspeakers and thus
causing acoustic feedback, which is heard as a whistling or
howling noise. ;
By means of monitor selector @® the choice can be made between
‘before tape’ (‘source’) and ’after tape’ (‘tape’) monitoring. The
selector has a third position (’automatic’) which is explained
below.
- Tape monitoring (fig. 6A): during recording, the signal which the
record head (©)) (fig. 9) has put on the tape, is reproduced
immediately afterwards by the playback head ©). Thus what is the
heard is the signal as recorded. Note that with the tape stationary
(in the pause or stop position) the playback head gives no signal
and so nothing is heard.
- Source monitoring (fig. 6B): in this case, what is heard is the
signal as it sounds before the record head() has putit on the tape,
so the source signal will also be audible in the pause or stop
position. Note that, when playing back a tape with monitor selector
G9 in position ’source’, you will not hear the tape recording, but the
source signal.
- Automatic monitoring: When record button (2 is pressed, the
set is automatically switched to source-monitoring. When the
record buttonis not pressed (in position ‘play’ or play/pause’), the
apparatus is in the tape-monitoring position.
Note that, with monitor selector (6 at ‘tape’, the cueing function is
also operative (see chapter ’Cueing’).
To monitor, proceed as follows:
@ Connect headphones to socket @3 or connect an amplifier to
the line-out sockets @9 or to the monitor sockets @8 and switch the
amplifier for monitor playback.
@ Set monitor selector (6 to ‘source’ if the tape is stationary or to
‘tape’ if the tape is running. For automatic switchover set the
selector to ‘automatic’.
@ Adjust the volume for the headphones with control @). When
monitoring through an amplifier, the volume, balance etc. should
be adjusted using the amplifier’s own controls.
Introduction to recording
@ Copying of gramophone records and recording of radio
programmes is permissible only insofar as copyright or other
rights of third parties are not thereby infringed.
Note for users in U.K.: Recording and Playback of material may
require consent. See Copyright Act 1956 and The Performers’
Protection Acts 1958 to 1972.
@ The strength at which the sound is recorded on the tape (the
‘recording level’) determines the quality of the sound obtainable
on playback. This recording level is adjusted with the recording
level controls ©, the front control is for the right channel and the
rear control for the left channel, so differences between the right
and left channel may be corrected.
@ The recording level is correctly set in position source-moni-
toring if, during the loudest passages, the pointers of recording
level meters ()() defiect to the '0 dB’ mark and the peak indicator
lights from time to time (not continuously!). Ifthe recording level
is too high or too low, distortion or disturbing tape noise, respect-
ively, will be heard on playback.
Note: Depending on the type of tape which is used, the indicated
recording level obtained during tape-monitoring and playback
may differ from the meter indication obtained during source-
monitoring. However, in order to obtain optimum recording
quality, the recording level should be set during source- monitor-
ing.
@ During recording, ay previous recording on the same part of the
tape is automatically erased. You can, however, erase a recording
without adding a new one by keeping the recording level controls
@at ’0’ as you record. Erasure is fastest with tape speed selector
@) at 19 cm/s.
e@ During the making of microphone recordings, the apparatus
connected to the line-in sockets 6) must be disconnected or
switched off. During the making of recordings from the line-in
sockets 6), no microphones must be connected. This is to avoid
unwanted mixing of signals.
Recording
@ Connect the equipment from which you wish to record to the
appropriate socket(s), see chapter Connections’.
@ Set track selector (9 to stereo ST’ or - for mono recordings -
to 1-4’ or 3-2’, see chapter 'Four-track system’.
@ Set tape speed selector (4 to the tape speed desired. The
lowest speed gives the longest playing time, the highest speed the
best sound quality.
@ Set monitor selector (6 to ‘source’ or ‘automatic’.
@ Press pause button (9.
@ Press record button (i and play button G8) at the same time. The
indicator near the record button will now light.
@ Allow the equipment connected to play, or speak or singinto the
microphones and adjust the recording level and the balance
between both channels with the recordinglevel controls@)in such
a way that, during the loudest passages, the pointers of the
recording level meters @)() deflect just to the ’0 dB’-mark and the
recording level peak indicator (9 lights from time to time (not
continuously!). Monitor selector @ must be in position source’ or
automatic’.
@ Now start making the actual recording by pressing the pause
button @3 once more. You can also start a recording without using
‘the pause button by simply epressing the record (i and play
button (@@ at the same time and adjusting the recording level during
the recording (source-monitoring). The sound may also be faded-
in by turning the recording level controls © from '0’ to the desired
setting after the tape has been set in motion.
@ The signal before and after recording can be compared at any
time with the original signal by monitoring either through head-
phones or through the amplifier connected. The original signal is
heard with monitor selector 46 at source’ or ’automatic’ (source-
monitoring), and the signal as recorded with the monitor selector
at ‘tape’ (tape-monitoring).
@ Check the recording level from time to time in position source-
monitoring and readjust it, gradually, as necessay with the record-
ing level controls ©.
@ For brief interruptions, press pause button (9. To resume
recording, simply press the pause button again.
@ To stop recording, press stop button @. If it is wished to
fade-out the sound, turn the recording levelcontrols () slowly
back to ’0’ before pressing the stop button.
Playback
@ Set track selector @ to the position it was in during recording.
@ Set tape speed selector (4 to the position it was in during
recording.
@ Set monitor selector (@ to ‘tape’ or ‘automatic’.
@ Adjust the amplifier for tape’-playback or connect headphones
to socket @9.
@ Start playing back by pressing play button (i).
e@ Adjust the volume for the headphones with control (6) or, when
playback is through an amplifier, adjust the volume, balance, tone
etc. using the amplifier controls.