METHOD AND APPARATUS FOR AUDIO INTERFERENCE ESTIMATION Russian patent published in 2018 - IPC H04R3/02 

FIELD: electrical communication engineering.

SUBSTANCE: invention relates to acoustics, in particular to noise level measuring devices. Audio interference estimation apparatus comprises a microphone, wherein a microphone signal comprising a test signal component corresponding to an audio test signal, a divider for dividing the microphone signal into a plurality of test interval signal components. Each test interval signal component corresponds to the microphone signal in a certain time interval, the test audio signal comprises a plurality of audio signal component repetitions, and the time distribution of the test interval signal components corresponds to the time distribution of the said repetitions. Set processor for generating sets of test interval signal components from the plurality of test interval signal components, a similarity processor for generating a similarity value for each set of test interval signal components; an interference estimator for determining an interference measure for individual test interval signal components in response to the similarity values.

EFFECT: technical result is higher accuracy of measurements and interference estimation.

13 cl, 10 dwg