Multi-channel playback of audio content
First Claim
1. A media playback system comprising:
- a processor;
a network interface;
a first audio driver and at least a second audio driver, wherein the first and second audio drivers are configured to output audio content according to a first radiation pattern; and
a non-transitory computer-readable medium storing instructions that, when executed by the processor, cause the media playback system to perform operations for providing audio content having an enhanced radiation pattern, the 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, via the network interface, 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 the first and second transfer functions are different;
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 enhanced radiation pattern, wherein the enhanced radiation pattern has a wider balanced directional effect than the first 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 having a first radiation pattern. The method includes receiving data representing audio content, where each datum of the data indicates (i) a frequency and (ii) an amplitude corresponding to the frequency. The method further includes, for each audio driver of the plurality of audio drivers, determining a transfer function; processing each datum of the data based on (i) the frequency indicated by the given datum and (ii) the determined transfer function; and providing, to the given audio driver, a respective signal representing the data processed for the given audio driver, thereby causing the plurality of audio drivers to play back the audio content according to a second radiation pattern that is different from the first radiation pattern. An example media playback system and an example non-transitory computer-readable medium related to the example method is also disclosed herein.
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Citations
15 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 at least a second audio driver, wherein the first and second audio drivers are configured to output audio content according to a first radiation pattern; and a non-transitory computer-readable medium storing instructions that, when executed by the processor, cause the media playback system to perform operations for providing audio content having an enhanced radiation pattern, the 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, via the network interface, 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 the first and second transfer functions are different; 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 enhanced radiation pattern, wherein the enhanced radiation pattern has a wider balanced directional effect than the first radiation pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for providing audio content having an enhanced radiation pattern, the method performed by a media playback system comprising a network interface, a first audio driver, and at least a second audio driver, the first and second audio drivers configured to output audio content according to a first radiation pattern, 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; and receiving, via the network interface, 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 the first and second transfer functions are different; 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 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 enhanced radiation pattern, wherein the enhanced radiation pattern has a wider balanced directional effect than the first radiation pattern. - View Dependent Claims (13)
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14. 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 at least a second audio driver, the first and second audio drivers configured to output audio content according to a first radiation pattern, cause the media playback system to perform functions for providing audio content having an enhanced radiation pattern, the 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, via the network interface, 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 the first and second transfer functions are different; 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 enhanced radiation pattern, wherein the enhanced radiation pattern has a wider balanced directional effect than the first radiation pattern. - View Dependent Claims (15)
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Specification