Technical data

50 Agilent Mobile Voice MOS Test Application Getting Started Guide
A Appendix A- Calibration of USB Audio Module
8 If the test waveform is outside the 4 dB range adjust the
Input and Output Control sliders on the ASIO USB
Control Panel. See Figure 38 on page 50.
Figure 38 ASIO USB Control Panel adjustments
Both the ear and microphone need to be calibrated. The ear
calibration affects the downlink quality (mobile side of the
system). The microphone calibration affects the uplink
quality (central office side of the system).
It is recommended that the volume levels of the phone
should be set around the middle of their range, then adjust
the levels using the ASIO USB Control Panel.
Adjust sliders to improve MOS values