ClearOne comm SR 1212 Conference Phone User Manual


 
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Optimizing Gain for Line Input Channels
Line inputs are optimized using the same procedure as mic inputs, with the following exceptions. Select the Line
Input you want to optimize on the Tree View Tab. With the line source connected, monitor the Post Gain Meter
and adjust the gain level.
NOTE: Line sources, including video codecs, consumer grade CD players, DVD players and
VCRs, commonly require 10-12 dB of gain to bring their levels up to 0 dBu.
Optimizing Gain for Telco Rx Channels
Optimize telco rx inputs using the same procedure as mic inputs, with the following exceptions. Select Telco Rx on
the Tree View Tab. With someone talking on the phone, monitor the Post-Gain Meter and adjust the gain level.
Optimizing Gain for Telco Tx Channels
Optimize telco tx outputs using the same procedure as output channels, with the following exceptions. Select Telco
Tx on the Tree View Tab. With someone speaking into the microphones routed to the telco tx, monitor the Post
Gain Meter and adjust the gain level.
NOTE: Use a standard handset on the far end because levels can be unpredictable from speaker
phones and amplified headsets.
Optimizing Gain for Output Channels
Open the 1. Channel Tab and select the Output Channel on the Tree View Tab that you want to optimize, as
shown below.
2. Optimize the gain level for all mic, line, and telco rx inputs routed to the selected output channel.
3. Adjust the Gain Slider until the average level on the Gain Meter matches the nominal level of the next
device in the chain.