Modified directional effect
First Claim
1. A media playback system comprising:
- a processor;
a network interface;
a first audio driver and a second audio driver, wherein the first and second audio drivers are configured to output audio content according to a first radiation pattern that produces an inherent directional effect; and
a non-transitory computer-readable medium storing instructions that, when executed by the processor, cause the media playback system to perform operations comprising;
receiving, via the network interface, first data and second data representing first and second channels, respectively, of multi-channel audio content, wherein the first and second data comprises audio data over a range of frequencies;
receiving third data indicating one or more characteristics of a listening area in which the media playback system operates;
determining, based on the third data, a first transfer function corresponding to the first audio driver and a second transfer function corresponding to the second audio driver, wherein at least one of the first and second transfer functions configure the first and second audio drivers to output audio content according to a second radiation pattern that produces a modified directional effect relative to the first radiation pattern;
generating a first audio output signal and a second audio output signal, wherein generating the first audio output signal comprises applying the first transfer function to the first and second data, and wherein generating the second audio output signal comprises applying the second transfer function to the first and second data; and
providing the first audio output signal to the first audio driver and the second audio output signal to the second audio driver, thereby causing the first and second audio drivers to play back the multi-channel audio content according to the second radiation pattern.
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Accused Products
Abstract
An example method is performed by a media playback system comprising a plurality of audio drivers configured to output audio content according to a first radiation pattern that produces an inherent directional effect. Based on data indicating characteristics of a listening area in which the media playback system operates, the system determines first and second transfer functions corresponding to the first and second audio drivers, respectively. One or both of the transfer functions configure the first and second audio drivers to output audio content according to a second radiation pattern that produces a modified directional effect relative to the first radiation pattern. The system applies the transfer function to audio content thereby causing the first and second audio drivers to play back audio content according to the second radiation pattern.
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Citations
20 Claims
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1. A media playback system comprising:
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a processor; a network interface; a first audio driver and a second audio driver, wherein the first and second audio drivers are configured to output audio content according to a first radiation pattern that produces an inherent directional effect; and a non-transitory computer-readable medium storing instructions that, when executed by the processor, cause the media playback system to perform operations comprising; receiving, via the network interface, first data and second data representing first and second channels, respectively, of multi-channel audio content, wherein the first and second data comprises audio data over a range of frequencies; receiving third data indicating one or more characteristics of a listening area in which the media playback system operates; determining, based on the third data, a first transfer function corresponding to the first audio driver and a second transfer function corresponding to the second audio driver, wherein at least one of the first and second transfer functions configure the first and second audio drivers to output audio content according to a second radiation pattern that produces a modified directional effect relative to the first radiation pattern; generating a first audio output signal and a second audio output signal, wherein generating the first audio output signal comprises applying the first transfer function to the first and second data, and wherein generating the second audio output signal comprises applying the second transfer function to the first and second data; and providing the first audio output signal to the first audio driver and the second audio output signal to the second audio driver, thereby causing the first and second audio drivers to play back the multi-channel audio content according to the second radiation pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for providing audio content having a second radiation pattern, the method performed by a media playback system comprising a network interface, a first audio driver, and a second audio driver, the first and second audio drivers configured to output audio content according to a first radiation pattern that produces an inherent directional effect, the method comprising:
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receiving, via the network interface, first data and second data representing first and second channels, respectively, of multi-channel audio content, wherein the first and second data comprises audio data over a range of frequencies; receiving third data indicating one or more characteristics of a listening area in which the media playback system operates; determining, based on the third data, a first transfer function corresponding to the first audio driver and a second transfer function corresponding to the second audio driver, wherein at least one of the first and second transfer functions configure the first and second audio drivers to output audio content according to a second radiation pattern that produces a modified directional effect relative to the first radiation pattern; generating a first audio output signal and a second audio output signal, wherein generating the first audio output signal comprises applying the first transfer function to the first and second data, and wherein generating the second audio output signal comprises applying the second transfer function to the first and second data; and providing the first audio output signal to the first audio driver and the second audio output signal to the second audio driver, thereby causing the first and second audio drivers to play back the multi-channel audio content according to the second radiation pattern. - View Dependent Claims (12, 13, 14, 15)
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16. A non-transitory computer-readable medium storing instructions that, when executed by a media playback system comprising a network interface, a first audio driver, and a second audio driver, the first and second audio drivers configured to output audio content according to a first radiation pattern that produces an inherent directional effect, cause the media playback system to perform functions comprising:
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receiving, via the network interface, first data and second data representing first and second channels, respectively, of multi-channel audio content, wherein the first and second data comprises audio data over a range of frequencies; receiving third data indicating one or more characteristics of a listening area in which the media playback system operates; determining, based on the third data, a first transfer function corresponding to the first audio driver and a second transfer function corresponding to the second audio driver, wherein at least one of the first and second transfer functions configure the first and second audio drivers to output audio content according to a second radiation pattern that produces a modified directional effect relative to the first radiation pattern; generating a first audio output signal and a second audio output signal, wherein generating the first audio output signal comprises applying the first transfer function to the first and second data, and wherein generating the second audio output signal comprises applying the second transfer function to the first and second data; and providing the first audio output signal to the first audio driver and the second audio output signal to the second audio driver, thereby causing the first and second audio drivers to play back the multi-channel audio content according to the second radiation pattern. - View Dependent Claims (17, 18, 19, 20)
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Specification