Handbook

20
Redbox User Handbook No 1
DIGITAL AUDIO CONVERTERS
3
DIGITAL AUDIO CONVERTERS - RB-SC1
3 RB-SC1 Sample Rate Converter
Introduction
Fig 3-1: RB-SC1 Front Panel
The RB-SC1 Sample Rate Converter standardises the sample rate of a digital audio signal to
one of 32kHz, 44.1kHz, 48kHz or 96kHz, or to a synchronising input, selectable from AES/
EBU, S/PDIF or TTL Word Clock.
If synchronising to an external signal there are several modes causing dierent actions in
case of loss of the synchronising signal.
There are also switches available to dene the content of the channel status bits embedded
within the digital audio stream.
System Block Diagram
Fig 3-2: RB-SC1 System Block Diagram
Digital
Input
Digital
Source
Select
Digital Sync
Select
Digital Send
Select
AES
Receiver
AES
Receiver
Conversion
Clock
Clock
Master
Clock
Generator
Frequency
Select
AES
Transmitter
Sample
Rate
Converter
Digital Sync
Input
AES/EBU
AES/EBU
Word
Clock
SPDIF
Digital
Output
AES/EBU
SPDIF
SPDIF