ClearOne XAP TH2 - Manual (Page 25)

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In order to optimize the audio levels, you will need to place a call on the XAP TH2.
This will enable you to evaluate the levels for caller audio, audio being sent to the
telephone, dial tone, DTMF tone, audible hook indication, and audible ring indication.
Adjusting receive audio
To increase or decrease the caller audio level that is being sent to all sources (power
amplifier, video codec, recording device, etc.), adjust the gain on the XAP 800 input
channel that is connected to the XAP TH2 Receive Output. This will affect only the
incoming caller audio. See the XAP 800 manual or G-Ware help file for detailed
instructions.
Receive Boost
If incoming caller audio is consistently low, activate the Receive Boost in the XAP
TH2 Telco Config window. Using Receive Boost, you can increase the signal from the
phone line in 3dB steps from 0 to 12dB. This setting is not used to correct variances
in call audio from one call to the next.
Receive ALC
If incoming caller audio has a mix of soft and loud talkers, activate Receive ALC in
the Telco Config window. This feature helps keep telephone participants at a
consistent level.
Receive Reduction
If local audio needs to take priority over caller audio, activate Receive Reduction.
This feature reduces audio from the caller by 6dB when local audio is present.
CHAPTER 5: Optimization
Adjusting Levels
When making
adjustments to the
receive and transmit
audio level, refer to the TH2 Telco
Meters window in
G-Ware for a meter view of levels.
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