Methods and systems for subwoofer calibration
First Claim
1. A method to calibrate a subwoofer, the method comprising:
- receiving, by the subwoofer from a controller device via a wireless network, an instruction to pair with a playback device;
after receiving the instruction to pair, pairing, by the subwoofer, with the playback device such that the subwoofer is configured to output multimedia content in synchronization with the playback device;
after receiving the instruction to pair, receiving, by the subwoofer from the playback device, an indication of an acoustic characteristic of the playback device, wherein the indication of the acoustic characteristic comprises an orientation of the playback device with respect to an axis of the playback device;
after receiving the indication of the acoustic characteristic, determining, by the subwoofer a crossover frequency of the subwoofer and the playback device based at least in part on the acoustic characteristic;
after determining the crossover frequency, outputting, by the subwoofer and in conjunction with the playback device, a series of tones near the crossover frequency;
after outputting the series of tones, receiving, by the subwoofer from the controller device via the wireless network, an indication of a selected tone set from the series of tones; and
automatically setting a phase of the subwoofer in relation to the playback device based on the selected tone set.
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Accused Products
Abstract
Methods and apparatus are disclosed for subwoofer calibration. An example method includes determining a crossover frequency of a playback system, and the playback system includes the subwoofer and a playback device. The example method includes the subwoofer and the playback device configured to output a multimedia content in synchronization. The example method also includes outputting from the subwoofer and the playback device a series of tones near the crossover frequency. The example method also includes prompting a user to select a tone set from the series of tones, and includes automatically adjusting a phase of the subwoofer in relation to the playback device based on the user selection.
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Citations
33 Claims
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1. A method to calibrate a subwoofer, the method comprising:
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receiving, by the subwoofer from a controller device via a wireless network, an instruction to pair with a playback device; after receiving the instruction to pair, pairing, by the subwoofer, with the playback device such that the subwoofer is configured to output multimedia content in synchronization with the playback device; after receiving the instruction to pair, receiving, by the subwoofer from the playback device, an indication of an acoustic characteristic of the playback device, wherein the indication of the acoustic characteristic comprises an orientation of the playback device with respect to an axis of the playback device; after receiving the indication of the acoustic characteristic, determining, by the subwoofer a crossover frequency of the subwoofer and the playback device based at least in part on the acoustic characteristic; after determining the crossover frequency, outputting, by the subwoofer and in conjunction with the playback device, a series of tones near the crossover frequency; after outputting the series of tones, receiving, by the subwoofer from the controller device via the wireless network, an indication of a selected tone set from the series of tones; and automatically setting a phase of the subwoofer in relation to the playback device based on the selected tone set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A subwoofer device comprising:
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a communication interface; a speaker driver; and a processor to; receive, by the subwoofer device from a controller device via a wireless network, an instruction to pair with a playback device; after receiving the instruction to pair, pair, by the subwoofer, with the playback device such that the subwoofer is configured to output multimedia content in synchronization with the playback device; after receiving the instruction to pair, receive, by the subwoofer from the playback device, an indication of an audio characteristic of the playback device wherein the indication of the audio characteristic comprises an orientation of the playback device with respect to an axis of the playback device; after receiving the indication of the acoustic characteristic, determine, by the subwoofer, a crossover frequency of the subwoofer and the playback device based at least in part on the audio characteristic; after determining the crossover frequency, output, by the subwoofer, in synchronization with the playback device, via the speaker driver, a first tone set and a second tone set, the first tone set and the second tone set being output by the subwoofer in a reversed polarity; after outputting the first tone set and the second tone set, receive, by the subwoofer, from the controller device via the wireless network an indication of a selection of the first tone set or the second tone set; and setting a phase of the subwoofer device based on the selection. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A computer readable storage medium including instructions for execution by a processor, the instructions, when executed, cause the processor to implement a method to calibrate a subwoofer, the method comprising:
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receiving, by the subwoofer from a controller device via a wireless network, an instruction to pair with a playback device; after receiving the instruction to pair, pairing, by the subwoofer, with the playback device such that the subwoofer is configured to output multimedia content in synchronization with the playback device; after receiving the instruction to pair, receiving, by the subwoofer from the playback device, an indication of an audio characteristic of the playback device, wherein the indication of the audio characteristic comprises an orientation of the playback device with respect to an axis of the playback device; after receiving the indication of the audio characteristic, determining, by the subwoofer, a crossover frequency of the subwoofer and the playback device based at least in part on the audio characteristic; generating, by the subwoofer, a first tone set including a frequency below the crossover frequency; generating, by the subwoofer, a second tone set based on the first tone set, wherein the second tone set includes a phase offset from the first tone set; after generating the first tone set and the second tone set, receiving by the subwoofer from the controller device via the wireless network, an indication of a selection of the first tone set or the second tone set; and setting a phase setting of the subwoofer or the playback device based on the selection. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification