Universal Audio UAD POWERED PLUG-INS ver.6.1 - Manual (Page 81)

UAD Powered Plug-Ins Manual - 81 - Chapter 6: UAD Meter & Control Panel
It is important to note that all devices on the FireWire bus share the available
data bandwidth of the bus, including hard drives and audio interfaces as well
as UAD-2 Satellite. Therefore all of the bandwidth cannot be allocated for
UAD use if FireWire hard drives and/or audio interfaces are on the same
bus. See
“FireWire Bandwidth” on page 141 for additional information.
To determine the proper value for the UAD Bandwidth Allocation:
1.
Connect and power up all the FireWire devices (host computer, audio in-
terfaces, hard drives, UAD-2 Satellite) on the FireWire bus.
2.
If running an audio interface on the FireWire bus, ensure the audio inter-
face drivers are installed and configured correctly (specifically, all the au-
dio inputs and outputs that will be used should be enabled).
3.
Run the UAD host (DAW) software but DO NOT run any UAD plug-ins, at
the HIGHEST SAMPLE RATE that will be used in the session (the sample rate
may be reduced after UAD Bandwidth Allocation is set).
4.
View FireWire Gauge in the “Bandwidth Metering” section of the FireWire
Panel UAD-2 Satellite ( page 82 ) when UAD plug-ins are NOT running. The
value indicated in orange is the percentage of FireWire bandwidth that is
used by all the devices except UAD-2 Satellite.
5.
Subtract the “Used by other devices” percentage from 100% and enter the
difference as the UAD Bandwidth Allocation. Done!
UAD Bandwidth
Allocation
Example
If all the FireWire devices on the bus except UAD-2 Satellite use 20% of the
available FireWire bandwidth (from steps 1 through 4 above), enter 80% as
the UAD Bandwidth Allocation (100% – 20% = 80%).
Tip: If FireWire performance issues occur, try leaving a bit of unused
FireWire bandwidth (headroom), so the total usage for all devices is less than
100%. To leave 5% of the bandwidth available for headroom in the example
above, you’d enter 75% for UAD Bandwidth Allocation (20% bandwidth
without UAD-2 Satellite + 75% for UAD-2 Satellite = 95% total FireWire band-
width).
Plug-In
Calculator
The Plug-In Calculator displays the maximum number of stereo UAD plug-ins
that can be run on UAD-2 Satellite with the current
FireWire System settings
at a given sample rate.
Note: The Plug-In Calculator is for informational purposes only; it does not
actually affect UAD FireWire or DSP performance in any way.