page 36 of 56 ANDIAMO 2.XT (SRC) Hardware Guide - Version 2.1
CHAPTER 4: Operation
Fallback mode
The fallback mode is available with Standard Bank routing and applies to the MADI
outputs.
It offers:
• mixed use of AES and analog inputs to convert
to a MADI bank of 32 channels
• redundancy to avoid unwanted silence in the MADI signal
The trigger condition for switch-over is the lock status of the specifi c AES3 input
port:
• AES input locked > AES signal is used as source
• AES input not locked > analog signal is used as source
The switch-over affects the single channel pair only. All other inputs remain
unchanged as long as they receive a valid AES input signal.
Delay Compensation
For conversion of all 64 channels (@ 1 FS) of a MADI signal two ANDIAMOs may
be daisy-chained. Between MADI input and output there is a delay of four samples.
To ensure phase locked operation of all audio channels the delay between the two
ANDIAMOs will be compensated then.
Delay compensation becomes active, once an ANDIAMO ‘sees’ another
ANDIAMO at its input. The ‘second’ ANDIAMO will switch to ID 02.
Delay compensation:
Δt A/D Δt D/A
ID 01 0 + 4 samples
ID 02 + 4 samples 0
NOTE
To ensure proper detection of delay compensation no other device must be
connected in between two ANDIAMOs.
ANDIAMO - ID 01 ANDIAMO - ID 02
OUT IN
Δt = 4 samples
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