User Manual

UAD Powered Plug-Ins Manual - 40 - Chapter 3: UAD System Overview
I/O Drivers
The audio interface is a hardware device that requires a software device
driver for the host computer OS. In addition to instructing the OS on how to
control the interface hardware, the driver acts as a software “middleman” be-
tween the host application and the I/O ports. The host application uses the
driver to access the I/O for signal routings.
I/O Buffers and Latency
Like the UAD card, audio interface driver also uses “buffers” to shuttle audio
signals to and from the I/O (see “UAD Buffers and Latency” on page 37).
Smaller I/O buffer settings produce lower latencies which is useful when mon-
itoring tracks while recording performances, but usually results in a higher
host computer CPU load since the system has to work harder transferring
data. Latency and buffers are discussed in greater detail in Chapter 9, “UAD
Delay Compensation.”
My.uaudio.com
My.uaudio.com is the UA online store, where UAD cards are registered to
your account and authorization files can be obtained. Bundled plug-in vouch-
ers are redeemed at the store and optional plug-in licenses can be purchased
there as well. For complete details about my.uaudio.com, including accounts,
registration, purchasing plug-ins at the online store, and more, see Chapter 4,
“My.uaudio.com.”
Authorization
Finally, all UAD plug-ins must be authorized before they can be used. Autho-
rization is accomplished by simply clicking the “Authorize Plug-Ins...” button
(page 61) in the UAD Meter & Control Panel. For complete details about the
authorization system, see “Authorization Overview” on page 42.