Lightspeed AC-CAVWC, Руководство пользователя

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30
1. Overview
2. Installation
3. Setup & Use
4. T
roubleshooting
5. W
arranty &
Specifications
31
1. Overview
2. Installation
3. Setup & Use
4. T
roubleshooting
5. W
arranty &
Specifications
CAT AV can have up to 4 microphones. The volume for each of these
microphones can be set using the following procedure:
Picture of LED 7 lit & location of AV Mute & Mute buttons
Picture of selector showing the new meaning of the select LEDS (group 1 channel
A, group 1 channel B, group 2 channel A, group 2 channel B)
Procedure:
1. Enter Set Up Mode
2. Make sure LED 7 is glowing green
or:
a. Push the Microphone Mute
button
b. Use the up & down arrow
buttons until LED 7 lights
3. Push the Mute AV Source button.
The first green LED next to the
Select button will light.
4. Look at the channel setting on
the rear of the microphone to
determine if it is set to channel A
or channel B.
5. Use the Select button until the
LED representing the channel
setting of the microphone lights.
6. Use the up & down arrow buttons
to increase or decrease the volume
for this microphone.
7. Repeat steps 4 to 6 for each
additional microphone.
8. Push the Microphone Mute button
to leave this set up mode and
select another function.
5. MICROPHONE VOLUME SETTING
The CAT AV uses a 4-band audio equalizer designed to optimize and fine-tune
the microphone sound quality for the classroom. Below are some tips on proper
system equalization:
The voice should be natural, very clear and without any audio feedback (ringing)
• Walk the room listening for the overall quality and any feedback that is present
• If there is a lot of audio feedback, it is likely the volume is too high. Ensure the
volume is at the appropriate level, a second person is helpful to determine
this.
• If feedback is still present with the audio set at the right level, make the
following EQ adjustments:
– High pitched ring: lower the 2K and/or 4K adjustment by _ down arrow button
– Lower pitched ring: lower the 500 and/or 1K adjustment by _ down arrow
button
• If you notice the sound is “muddy” or has too much bass:
– Lower the 500 adjustment by _ down arrow button and/or
– Raise the 2K or 4K adjustment by using the up arrow button
• Note: the EQ adjustments should be preset at “center (zero).” This is the
nominal level and any adjustments (up or down) should be made from this
level.
6. EQUALIzER LEVEL SETTING