Hybrid Test Tone for Space-Averaged Room Audio Calibration Using A Moving Microphone
First Claim
Patent Images
1. A playback device comprising:
- one or more speakers;
a network interface;
one or more processors;
a data storage having stored therein instructions executable by the one or more processors to cause the playback device to perform operations comprising;
receiving, from a control device via the network interface, a command that instructs the playback device to emit a calibration sound; and
responsively causing the one or more speakers to emit a periodic calibration sound that covers a calibration frequency range, wherein the periodic calibration sound comprises (i) a first component that includes noise at frequencies between a minimum of the calibration frequency range and a first threshold frequency, and (ii) a second component that sweeps through frequencies between a second threshold frequency and a maximum of the calibration frequency range.
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Abstract
An example implementation may involve a playback device receiving a command that instructs the playback device to emit a calibration sound and responsively causing one or more speakers to emit a periodic calibration sound that covers a calibration frequency range. The periodic calibration sound may include (i) a first component that includes noise at frequencies between a minimum of the calibration frequency range and a first threshold frequency, and (ii) a second component that sweeps through frequencies between a second threshold frequency and a maximum of the calibration frequency range.
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Citations
20 Claims
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1. A playback device comprising:
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one or more speakers; a network interface; one or more processors; a data storage having stored therein instructions executable by the one or more processors to cause the playback device to perform operations comprising; receiving, from a control device via the network interface, a command that instructs the playback device to emit a calibration sound; and responsively causing the one or more speakers to emit a periodic calibration sound that covers a calibration frequency range, wherein the periodic calibration sound comprises (i) a first component that includes noise at frequencies between a minimum of the calibration frequency range and a first threshold frequency, and (ii) a second component that sweeps through frequencies between a second threshold frequency and a maximum of the calibration frequency range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A playback device comprising
one or more speakers; a control system that causes the one or more speakers to emit a periodic calibration sound that covers a calibration frequency range, wherein the periodic calibration sound comprises (i) a first component that includes noise at frequencies between a minimum of the calibration frequency range and a first threshold frequency, and (ii) a second component that sweeps through frequencies between a second threshold frequency and a maximum of the calibration frequency range. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A non-transitory computer-readable medium having stored therein instructions executable by one or more processors to cause a control device to perform operations comprising:
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detecting input data indicating a selection of a selectable control that, when selected, initiates calibration of at least one playback device; upon detecting the input data indicating the selection of the selectable control, sending, to the at least one playback device, a command that instructs the at least one playback device to emit a periodic calibration sound that covers a calibration frequency range, wherein the periodic calibration sound comprises (i) a first component that includes noise at frequencies between a minimum of the calibration frequency range and a first threshold frequency, and (ii) a second component that sweeps through frequencies between a second threshold frequency and a maximum of the calibration frequency range; and detecting, via a microphone, at least a portion of the emitted calibration sound from the at least one playback device. - View Dependent Claims (17, 18, 19, 20)
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Specification