Calibration of audio playback devices
First Claim
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.
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Accused Products
Abstract
An audio playback device comprises a microphone, a speaker, and a processor. The processor is arranged to output by the speaker first audio content and receive by the microphone an indication of the first audio content. A first acoustic response of a room in which the audio playback device is located is determined based on the received indication of first audio content. A mapping is applied to the first acoustic response to determine a second acoustic response. The second acoustic response is indicative of an approximated acoustic response of the room at a spatial location different from a spatial location of the microphone. The second audio content output by the speaker is adjusted based on the second response.
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Citations
20 Claims
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1. An audio playback device comprising:
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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 Dependent Claims (2, 3, 4, 5)
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6. A method comprising:
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outputting by the speaker first audio content; receiving by the microphone an indication of the first audio content; determining 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; applying 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;receiving an indication to play back second audio content; adjusting based on the second acoustic response and the indication second audio content; and outputting by the speaker the adjusted second audio content. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A non-transitory computer readable storage medium including instructions for execution by a processor, the instructions, when executed, cause the processor to implement a method comprising:
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outputting by the speaker first audio content; receiving by the microphone an indication of the first audio content; determining 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; applying 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;receiving an indication to play back second audio content; adjusting based on the second acoustic response and the indication second audio content; and outputting by the speaker the adjusted second audio content. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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20. An audio playback device comprising:
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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 second acoustic response is indicative of an approximated acoustic response of the room at a second spatial location different from the first spatial location of the microphone;
wherein the mapping is defined by a set of first acoustic responses and a set of second acoustic responses;
wherein a response of the set of first acoustic responses is an acoustic response of a given room at a fixed location and a response of the set of second acoustic responses is based on acoustic responses at a plurality of spatial locations different from the fixed location in the given room;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.
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Specification