Dynamic audio parameter adjustment using touch sensing
An audio communications device has a handset in which a touch sensing ear piece region is coupled to an acoustic leakage analyzer. The acoustic leakage analyzer is to analyze signals from the touch sensing ear piece region and on that basis adjust an audio processing parameter. The latter configures an audio processor which generates an audio receiver input signal for the device. Other embodiments are also described and claimed.
1. A machine-implemented method for operating an audio communications device, comprising:
during a call that is being performed using the audio communications device, automatically
detecting an imprint of a user's ear against a region around a sound
emitting surface of the device using a touch sensing surface, and
adjusting an audio processing parameter of the device based on said
detection to compensate for acoustic leakage between the user's ear and
the region around the sound emitting surface wherein said adjusting an audio processing parameter of the device comprises adjusting a plurality of parameters of an audio signal processor whose input is to receive a downlink audio signal and a sidetone signal, to change sound pressure level and spectral content of an acoustic signal that is delivered to the user's ear.
2. The method of claim 1 wherein said detecting comprises:
detecting a plurality of separate touch-activated regions around the sound emitting surface, each of the separate regions being contiguous.
3. The method of claim 1 wherein said adjusting a plurality of parameters comprises one of:
adjusting a gain setting unit;
adjusting an automatic gain control (AGC) unit;
adjusting an equalization filter;
adjusting a noise suppressor or noise canceller;
adjusting a compander;
adjusting a compressor; and
adjusting an expander.
4. The method of claim 1 wherein said adjusting a plurality of parameters comprises:
boosting a frequency response range that is below 1 kHz, relative to a frequency response range that is above 1 kHz, when compensating for a transition from a more sealed condition to a less sealed condition.
5. The method of claim 1 wherein said adjusting a plurality of parameters comprises:
cutting back a frequency range that is below 1 kHz, relative to a frequency response range that is above 1 kHz, when compensating for a transition from a less sealed condition to a more sealed condition.