System and method for device playback calibration
First Claim
1. A system comprising:
- a microphone configured to detect, from a first location relative to at least one playback device, audio content rendered by the at least one playback device;
a modulator configured to modulate the detected audio content with a modulation signal having a modulation frequency, wherein the modulation frequency is determined based on an input frequency range of a processing unit; and
the processing unit configured to;
receive the modulated audio content;
demodulate the modulated audio content; and
determine an equalization setting for the at least one playback device to render audio content based on an analysis of the demodulated audio content.
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Accused Products
Abstract
Systems and methods are provided for device playback calibration. In one example, a calibration device with a microphone and signal processor may detect audio content rendered by a playback device. The calibration device may transmit the detected audio content to a processing unit configured to determine an equalization setting for optimal playback of the playback device based on the received detected audio content and a relative distance and direction between the playback device and the calibration device. The calibration device may further be configured to modulate the detected audio content before transmitting the detected audio content to the processing unit to accommodate for a limited frequency range of the processing unit. In this case, the processing unit may demodulate the received signal prior to determining the equalization setting. The processing unit may then transmit the determined equalization setting to the playback device according to a wireless communication protocol.
217 Citations
18 Claims
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1. A system comprising:
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a microphone configured to detect, from a first location relative to at least one playback device, audio content rendered by the at least one playback device; a modulator configured to modulate the detected audio content with a modulation signal having a modulation frequency, wherein the modulation frequency is determined based on an input frequency range of a processing unit; and the processing unit configured to; receive the modulated audio content; demodulate the modulated audio content; and determine an equalization setting for the at least one playback device to render audio content based on an analysis of the demodulated audio content. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for playback calibration of at least one playback device comprising:
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a microphone configured to detect audio content rendered by the at least one playback device; and a modulator configured to modulate the detected audio content for transmission to a processing unit configured to determine an equalization setting for the at least one playback device, wherein the modulator is configured to modulate the detected audio content by multiplying the detected audio content with a modulation signal comprising a modulation frequency that is determined based on an input frequency range of the processing unit. - View Dependent Claims (11, 12, 13)
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14. A method performed by a computing device, the method comprising:
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determining a first distance and direction of a playback device; causing the playback device to render audio content; transmitting a modulation signal comprising a modulation frequency, wherein the modulation frequency is determined based on an input frequency range of the computing device; receiving a first modulated version of the rendered audio content; and determining an equalization setting of the playback device based on the first modulated version of the rendered audio content, and the first distance and direction of the playback device. - View Dependent Claims (15, 16, 17, 18)
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Specification