Manual

79
5 Digital Effects | Master Control
5.5 System Menu
StudioLive™ AI-series Mixers
Owner’s Manual
When the StudioLive is connected and synced to a
computer, the status will read “Driver On.” This parameter can
be adjusted from the StudioLive while it is synced to a
computer. (See “Connecting to a Computer” in the StudioLive
AI-Series Software Library Manual for details on using your
StudioLive as an audio interface.)
Power User Tip: To ensure the safety of the audio equipment
connected to it, the StudioLive will mute all post-converter
outputs for two seconds when the sample rate is changed.
This includes the main and the control-room outputs, as
well as the aux and subgroup outputs. While this offers
a good measure of protection to your sound system, it
could put the brakes on a live show. Therefore, it very
important that the sample rate be selected and locked
prior to beginning any recording or performance.
Sub Out Delays
On page 7 of the System menu, you will find the Sub Out
Delays. The StudioLive provides the ability to delay the audio
from each subgroup output by 0.5 to 300 ms. You can adjust
the delay in 0.5 ms increments.
When you correctly set the delay time for these
outputs, you ensure that the sound from each speaker
in the P.A. system arrives at the listening position
at the same time. The delay should be set for the
speakers to which your listener will be closest.
Let’s say you are using a StudioLive in a large theater with a balcony, and you
have three pairs of speakers: a pair in front of the stage, a pair in the rear of the
auditorium, and a pair at the front of the balcony. You will need to delay the
rear speakers so that the listeners closest to them will hear the audio from both
the rear and stage speakers at the same time. This is also true for the audience
in the balcony. While the balcony speakers will provide the loudest source
of audio, the balcony audience will still be able to hear the stage speakers,
so a delay must be set for the balcony speakers. You will need to calculate
approximately 1.1 ms of delay time per foot. So if the balcony speakers in the
above example are 61 feet from the stage speakers, set their delay time to 67 ms.
Speaker delay can also be used to correct off-axis phasing issues in small clubs.
Because of space restrictions, you can’t always place your main speakers for
the best possible sound reproduction. Sometimes your left-side speaker will
need to be closer to the audience to make room for a pillar or a staircase or
the bathroom, so an audience member standing in the center of the room will
not have the best listening experience. By using a pair of subgroups as the
source for your mains, you can factor in that 2 to 4 ms delay the left speaker
needs so that unbalanced speaker placement is no longer an issue.
Power User Tip: Virtual StudioLive-AI features the Smaart® System Delay wizard, which
is designed to calculate and set this delay automatically by analyzing your main and
delay systems with a measurement microphone. For more information on this powerful
feature, as well as additional information on configuring a delay system, please review
“Smaart System Delay Wizard” in the StudioLive AI-Series Software Library Manual.