Abstract: Microphone signals of a primary headphone are processed and either a first transparency mode of operation is activated or a second transparency mode of operation. In another aspect, a processor enters different configurations in response to estimated ambient acoustic noise being lower or higher than a threshold, wherein in a first configuration a transparency audio signal is adapted via target voice and wearer voice processing (TVWVP) of a microphone signal to boost detected speech frequencies in the transparency audio signal, and in a second configuration the TVWVP is controlled to, as the estimated ambient acoustic noise increases, reduce boosting of, or not boost at all, the detected speech frequencies in the transparency audio signal. Other aspects are also described and claimed.

Abstract: An audio system includes an array of microphones and an audio processing system. The array of microphones includes a plurality of microphones configured to record a plurality of sound signals based on sound waves emanating from a sound source. The audio processing system includes a direction of arrival (DOA) estimator configured to generate an estimation of a DOA of the sound waves emanating from the sound source based on the plurality of sound signals, a statistical subset selector configured to select a subset of the plurality of microphones based on the estimation of the DOA, and a spatial filter configured to modify and combine a set of sound signals associated with the selected subset of the plurality of microphones to produce an audio output associated with the sound source.