C
HAPTER
9. R
ECORDING
S
ETTINGS
72
you record via a digital input as even the noise of the device itself would exceed
this threshold immediately.
for at least
The start duration defines the minimal duration that a signal must exceed
the start threshold to start the recording. Depending on your situation you may
want to set this setting to 0 (e.g. when copying a song from a commercial medium)
or to quite big values. Because sound is not continuous by nature (think of per-
cussion) neglectable dropouts are tolerated during this start duration.
Stop Below
When the sound level drops below the stop threshold the recording is
stopped. It is displayed numerically in the line ”Stop Below”. Just like the start
threshold the unit of the stop threshold depends on the settings of the peak meter.
There’s also a small triangular marker in the peak meter at the bottom of the
screen. In contrast to the start threshold marker it points to the left. The value
O
FF
turns the stop condition off. With this setting you have to stop the recording
manually.
for at least
This time specifies the duration the signal must drop below the stop thresh-
old to stop the recording. By selecting high values you can ensure that, for exam-
ple, trailing fade-outs are recorded entirely.
Presplit Gap
When the signal drops below the stop threshold for the time specified by
the presplit gap a new recording may be started when the signal raises above the
start threshold. Thus the value of the presplit gap should be smaller than the stop
hold time. Otherwise the recording would stop anyway and the presplit gap has
no effect. For most uses I recommend to set this parameter equal to the stop hold
time. Sometimes you may encounter a sound source (e.g. a CD) where the songs
have fade outs and hardly any gaps between the tracks. Here you can set the stop
hold time to long values to ensure that all fade outs are recorded completely. By
specifying a short presplit gap you still can split the recording into seperate tracks
whenever the trigger start condition is met.
More information can be found at
Z
VolumeTriggeredRecording
.
9.11 Automatic Gain Control
The A
UTOMATIC
G
AIN
C
ONTROL
has five different presets for automatically control-
ling the gain while recording.
Safety (clip):
This preset will lower the gain when the levels get too high (-1dB) and
will never increase gain.
Live (slow):
This preset is designed to be used for recording of live shows and has
quite large headroom for loud parts. It heads for a nominal target peak level of
-9dB and will slowly increase or decrease gain to reach it.
T
HE
R
OCKBOX MANUAL
I
RIVER
H3
XX
