Junger Audio b42 - Dynamics Processor - Manual (Page 37)

7. APPLICATION NOTES
operation manual b42, chapter 7-Application notes- page 7-1
APPLICATION NOTES
In digital video recording technology four digital audio channels
are the standard configuration. This channel capacity is used
increasingly in production and post-production for surround sound,
providing mix options and for multi-lingual productions.
Quite often it is necessary to make corrections or changes to the
audio which until now required the use of an expensive digital
audio mixer. These tasks can now be easily solved with the
Jünger Audio range of digital audio toolboxes. Simple processing
for up to four digital audio signals may be carried out quickly and
efficiently.
Using the SDI versions (SDI=Serial Digital Interface, digital
component video format with 270Mb/s transmission) b40 series
can process embedded audio.
The standard allows up to four groups each of four mono audio
channels. Usually used by most of D-VTR's and other equipment
is Group 1 with 48 kHz synchronous sampling. Synchronous
means that the audio clock is genlocked to the associated video.
Each channel can have up to 20 bits of resolution per audio
sample.
The 4-channel processors of b40 series fitted with SDI-interface
are compatibel with the standard SMPTE 272M-AB. They support
48 kHz synchronous audio sampling with 20 bit word length.
The Jünger Audio SDI interface provides for one group of four
audio channels to be extracted from or inserted into the SDI data
stream. To address a specific channel group the group selection is
possible (see 4).
The b40 provides an optional SD- or HD-SDI board. When you
switch on the device the plugged in interface will be indicated in
the display
FEATURES
• Bypass relay for SDI IN >SDI OUT
• Bit transparent for coded data streams (e.g. DOLBYE/20bit)
• De-embedder: user selectable de-embedding of one group
• Embedder: user selectable embedding to one of 4 groups
• SDI-SYNC: SDI input can be the clock source of the device
• For HD-SDI: Multi-Format HD/SD operation with auto detection
7.1
B4x SERIES WITH
SDI-INTERFACE
optional SD/HD
7