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Administrator’s Guide for Polycom HDX Systems
11 - 6
Audio
Reset System
Diagnostic Screen Description
Speaker Test Tests the audio cable connections. A 473 Hz audio tone
indicates that the local audio connections are correct.
If you run the test from the system during a call, the far site
will also hear the tone.
If you run the test from the web interface during a call, the
people at the site you are testing will hear the tone, but you
will not.
Audio Meter Measures the strength of audio signals from
microphone(s), far-site audio, VCR audio, and any device
connected to the audio line in.
• To check the microphone(s), speak into the
microphone.
• To check far-site audio, ask a participant at the far site
to speak or call a phone in the far-site room to hear it
ring.
• To check a VCR or DVD, connect it to the VCR inputs
and play the VCR or DVD to test the audio.
The Audio Meters indicate peak signal levels. Set signal
levels so that you see peaks between +3dB and +7dB with
normal speech and program material. Occasional peaks of
+12dB to +16dB with loud transient noises are considered
acceptable. A meter reading of +20dB corresponds to
0dBFS in the Polycom HDX system audio. A signal at this
level is likely clipping the audio system.
Meters function only when the associated input is enabled.
Diagnostic Tool Description
Reset System Cycles power to the system.
Note: If Security Mode is enabled, you must enter the
room password to reset the system.
When you reset the system using the remote control, the
system’s user interface allows you to:
• Keep your system settings (such as system name and
network configuration) or restore factory settings.
• Keep or delete the directory stored on the system.
System reset does not affect the global directory.
You may wish to download the CDR and CDR archive
before you reset the system. See Call Detail Report (CDR)
on page 11-7.