> 5.6.1 | Audio Parameters Adjustable by AT Commands

> Table 32: | Audio Parameters Adjustable by AT Commands

> Parameter | Influence to | Range | Gain range | Calculation
> inBbcGain | MICP/MICN analog amplifier gain of baseband controller before ADC | 0...7 | 0...42dB | 6dB steps
> inCalibrate | digital attenuation of input signal after ADC | 0...32767 | -...0dB | 20 * log (inCalibrate/ 32768)
> outBbcGain | EPP/EPN analog output gain of baseband controller after DAC | 0...3 | 0...-18dB | 6dB steps
> outCalibrate[n] n = 0...4 | Digital attenuation of output signal after speech decoder, before summation of sidetone and DAC present for each volume step[n] | 0...32767 | -...+6dB | 20 * log (2 * outCalibrate[n]/ 32768)
> sideTone | Digital attenuation of sidetone is corrected internally by outBbcGain to obtain a constant sidetone independently to output volume | 0...32767 | -...0dB | 20 * log (sideTone/ 32768)

> Note: The parameters inCalibrate, outCalibrate and sideTone accept also values from 32768 to 65535, but these values are internally truncated to 32767.