Owner`s manual
Introduction to the Studio Foundation Sound Recording Kits v.5 (Sp13)
Setting & monitoring levels
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3
4
3. Always monitor your recording
with good headphones that
provide sound isolation.
4. Most earbuds are not as good as
professional headphones for
monitoring, however, if you have
to use them, use the type that
provides good sound isolation.
Professional earbuds do exist.
R-09
R-09HR
2
Sony MDR-7506
professional
headphones are
available for check-
out from the cage for
critical monitoring
and editing..
2/3
R-05
2
1. Adjusting levels manually provides the best results,
however, in a pinch, especially when recording with
lots of variation between soft and loud you can’t
predict or control, turn on Automatic Gain Control
(AGC) to let the recorder adjust levels automatically.
2. If you are using an R-09HR or R-05 recorder, we
suggest enabling the LIMITER which will gracefully
curtail peak audio to avoid distortion. The LIMITER is
turned on via the switch on the back of the recorder.
However, the actual processor (AGC or LIMITER) used
is determined by the choice selected in the Input
Settings Menu on the R-09HR and R-05 recorders. The
R-09 does not have a LIMITER.
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Introduction to the Studio Foundation Sound Recording Kits v.5 (Sp13)
Setting & monitoring levels
Automatic Gain Control (AGC)
AGC circuit is automatically
raising the input gain during
soft passages and reducing the
input gain during loud
passages, normalizing the
audio levels in the recording.
You don’t have to worry about
setting levels, except to choose
High or Low microphone
sensitivity depending on the
overall intensity of the sounds.
The dynamic range of the sound
will be attened, with softer
sounds louder than normal and
there will be pumping up and
down of the background noise
as loud passages come and go
during the recording
Manual input settings with Limiter
(Limiter not available on R-09)
A limiter circuit compresses the
loudest passages of the input
signal while not aecting the
levels of softer passages.
No pumping of the noise oor
between loud and soft
passages. Moderate peaks will
be compressed without
distortion.
The dynamics are somewhat
attened, impairing the natural
dynamic range of the sounds
being recording. You still need
to manually set the appropriate
microphone sensitivity and
input levels.
Manual input settings
without Limiter
The recorder is not doing
any processing of the input
signal.
The natural dynamics of the
sounds you are recording are
captured as faithfully as
possible.
If peaks above 0dBFS are
encountered, the sound will
have unpleasant raspy
artifacts caused by clipped
waveforms. It is extremely
critical to set the right input
levels to avoid the peaks.
3/3
What’s going on?
Pros
Cons
Input Signal
peaks of
recorded
signal are
clipped
peaks of
recorded
signal are
compressed
level of
recorded
signal is
normalized
0 •
-6 •
-12 •
-20 •
-40 •
-45 •
Recorded Signal
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