×

Calibration of audio playback devices

  • US 9,763,018 B1
  • Filed: 04/12/2016
  • Issued: 09/12/2017
  • Est. Priority Date: 04/12/2016
  • Status: Active Grant
First Claim
Patent Images

1. An audio playback device comprising:

  • a microphone;

    a speaker;

    a processor comprising instructions, which when executed, cause the processor to;

    output by the speaker first audio content;

    receive by the microphone an indication of the first audio content;

    determine for a first spatial location of the microphone a first acoustic response of a room in which the audio playback device is located based on the received indication of the first audio content by the microphone;

    apply a mapping to the first acoustic response to determine a second acoustic response, wherein the mapping is based on a weighting of respective relationships between each acoustic response of a plurality of third acoustic responses and a corresponding fourth acoustic response, wherein each acoustic response of the plurality of third acoustic responses is determined for a respective second spatial location and each corresponding fourth acoustic response is determined for one or more third spatial locations different from the respective second spatial location; and

    wherein the second acoustic response is indicative of an approximated acoustic response for one or more fourth spatial locations in the room different from the first spatial location of the microphone;

    receive an indication to play back second audio content;

    adjust based on the second acoustic response and the indication second audio content; and

    output by the speaker the adjusted second audio content.

View all claims
  • 4 Assignments
Timeline View
Assignment View
    ×
    ×