Redbox User Handbook No 1
55
SYNCHRONISERS, DELAYS &
SILENCE DETECTORS
SY
NCHR
ONISERS, DEL
A
Y
S & SILENCE DE
TEC
TORS - RB
-DS2
7
installed, a message box will be display and the audio output will not be interrupted.
The default mode is Normal.
Source
This option selects which input is used for the audio delay process. From the main system
menu select SOURCE. The available options are ANALOGUE, ANALOGUE SYNC and DIGITAL.
The delayed audio appears at both the analogue and digital outputs regardless of the input
source selected.
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Analogue – This selects the audio at the analogue inputs as the source for the delay.
The input is sampled and delayed using the selected sample rate generated from an
internal master clock. The digital input is not used.
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Analogue Sync – This selects the audio at the analogue inputs as the source for the
delay. The input is synchronised to the digital audio sync signal at the digital input
and the analogue and digital audio outputs will be muted until a valid sync signal is
detected. Once a valid sync signal has been received and the delay process starts, any
subsequent loss of sync signal will force the unit to revert to an internally generated
master clock rate as near as possible to the last sync signal received.
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Digital – This selects the audio at the digital input as the source for the delay. With no
digital signal applied, the analogue and digital audio outputs will be muted. Once a
valid digital input is received, the unit locks to this signal and the delay process starts.
Any change of sample rate on the digital input signal will force the unit to stop the
delay and mute the analogue and digital outputs. The delay will then restart once the
new sample rate has been validated. The analogue inputs are not used.
The default source is analogue.
Channels
This option selects how the left and right channels are used. From the main system menu
select CHANNELS. The available options are MONO, DUAL MONO and STEREO. Changing
the channels selection will mute the analogue and digital outputs while the delay is
acquired with the new setting.
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Mono – The left channels only are used for the mono signal and the right channels are
muted. This mode doubles the delay durations available, compared to stereo and dual
mono settings.
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Dual Mono – This allows the delay on the left and right channels to be independently
set. All other configuration options are common to both the left and right channels.
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Stereo – The selected delay applies to both the left and right channels.
The default channel configuration is stereo.
Sample Rate
This option selects the sample rate used when the input source is set to Analogue. From the
main system menu select SAMPLE RATE. The available options are 32KHZ, 44.1KHZ, 48KHZ,