Method and system for audio system volume control

摘要

A communication device may determine total gain for a downlink processing path via the communication device. The total gain may be determined based on determination of audio requirements for each of a plurality of audio processing devices supported via the communication device, during the downlink processing path. The communication device is operable to determine a default mix signal gain, a downlink gain adjustment and a calibration gain based on the determined audio requirements, and to calculate the total gain for the downlink processing path based on the determined default mix signal gain, the downlink gain adjustment and the calibration gain. The determination of the total gain may be based on determination of a telephony state in the communication device. The calibration gain may be determined during calibration of the communication device, whereas the downlink gain adjustment may be calculated based on an adjustment step-size and/or a mode based gain index.

主权项

1. A method for audio processing, using a processor or circuit within a communication device, comprising:
determining, for a combined output audio signal that includes a plurality of component audio signals, again component audio signals; determining a total gain of the combined output audio signal as a sum of the determined gains of the plurality of component audio signals in response to detecting an off-hook state of the communication device; comparing the total gain to a predefined saturation threshold; implementing a volume control algorithm to limit the total gain when the total gain exceeds the predefined saturation threshold, the volume control algorithm comprising:
determining audio requirements for each of a plurality of audio processing devices in a downlink processing path of the communication device;determining a default mix signal gain, a downlink gain adjustment, and a calibration gain based on the determined audio requirements; andcalculating a mixed gain for the downlink processing path based on the determined default mix signal gain, the downlink gain adjustment and the calibration gain; and adjusting the total gain based on the mixed gain.