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Direction of arrival estimation for multiple audio content streams

  • US 10,455,325 B2
  • Filed: 12/27/2018
  • Issued: 10/22/2019
  • Est. Priority Date: 12/28/2017
  • Status: Active Grant
First Claim
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1. A method for estimating directions of arrival based on categories, comprising:

  • receiving an audio signal;

    providing the audio signal to a neural network that has been trained using known sound content corresponding to the plurality of sound content categories;

    generating, by the neural network, a plurality of filters based on the audio signal, each of the filters corresponding to one of the plurality of sound content categories; and

    separating the audio signal into a plurality of category specific audio signals using the filters, the category specific audio signals respectively corresponding to the plurality of sound content categories; and

    for each of the category specific audio signals, generating a direction of arrival (DOA) for a sound source of the category specific audio signal.

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