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Optimizing the Audio
Troubleshooting
General checks
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CAMBOARD Electronics
Each individual input audio level can be adjusted within a range of -18 dB to
+24 dB, so there are no noticeable volume differences between sources and for the
best headroom and signal-to-noise ratio. Adjust the audio gain and attenuation as
follows:
1.
Connect audio sources to all desired inputs and connect the audio outputs to
output devices such as audio players. See Audio input and output, in chapter 2,
Installation. For best results, wire all of the inputs and the outputs balanced.
2.
Power on the audio sources, the switcher, and the audio players.
3.
Switch among the inputs (see Creating ties, in this chapter), listening to
the audio with a critical ear or measuring the output audio level with test
equipment, such as a VU meter.
4.
As necessary, adjust the input audio level of each input (see Viewing and
adjusting the input audio level, in this chapter) so that the approximate output
level is the same for all selected inputs.
5.
As necessary, adjust the output audio level of each input (see Viewing and
adjusting the output volume, in this chapter).
This section gives recommendations on what to do if you have problems operating
the switcher.
1.
Ensure that all devices are plugged in and powered on. The switcher is
receiving power if any of the front panel button indicators are lit.
2.
Check to see if one or more outputs are muted.
3.
Ensure an active input is selected for output on the switcher.
4.
Ensure that the proper signal format is supplied.
5.
Check the cabling and make corrections as necessary.
3
6.
Call the Extron S
Sales & Technical Support Hotline if necessary.
Tel. 07131 911201
MPX 866 A Media Presentation Matrix Switcher • Operation
Fax 07131 911203
ce-info@camboard.de
3-41
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