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103AdvAnced Functions
Sample Alignment
All digital networks that allow daisy‑chained connectivity need to
compensate for sub‑millisecond latency build‑up between devices when
data is retransmitted. In the majority of cases, there is no audible effect (as
the individual delays are very small), but without compensation, these small
variations in latency can become an issue in certain applications as the
network grows in size.
On power up, each device in the network will calculate a sample alignment
value based on the current sample rate and will apply it as long as the
network is running. The next time the network sample rate is changed or the
system is power cycled, a new value will be calculated and locked in. This
sample alignment value will be referred to as the default value in the text that
follows. Using the default value will offer the simplest method of operation.
However, to guarantee repeatable latency down to the microsecond, the
user has the option of measuring the sample alignment amount for a given
sample rate and then applying that measured value every time the network
is powered up. This is referred to as a stored value in the text that follows. By
using these stored values, the Pro64’s unique software guarantees consistent
delays between each component of the network.
Sample Alignment Status
The sample alignment query, Function 11, can be performed on the Control
Master or any remote unit in the network. The network can use the default
value (created at the time of power‑up) or a stored value.
6 416
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A-NET SLOT
Edit Lock
Managed
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CONTROL
MASTER
ENTER
CANCEL
Gain (dB)
Port A
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A-NET
TRANSMIT
Manual
VDC SLOT
RS-232
MIDI In
MIDI Out
GPIO In
GPIO Out
ASSIGN
PORT
CLOCK
MASTER
CONTROL
Sample Rate
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+48VPhase Low CutSAVE RECALL Pad
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FUNCTION
Group 4
Group 3
Group 2
In Advance Function 11, the red LED indicates that the system default sample
alignment values are being used.
To get sample alignment info, press the Fu n C t i o n button, followed by the