Calibration State Variable

• US 20160014535A1
• Filed: 07/07/2015
• Published: 01/14/2016
• Est. Priority Date: 06/28/2012
• Status: Active Grant

• Current Assignee: Sonos, Inc.
• Original Assignee: Sonos, Inc.
• Inventors: Wilberding, Dayn, Griffiths, Neil
• Granted Patent: US 9,788,113 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/165 Management of the audio stream, e.g. setting of volume, audio stream path
• CPC Class Codes: H03G 3/20 Automatic control H03G3/005 takes precedence; combined with volume compression or expansion H03G7/00
• CPC Class Codes: H03G 5/005 of digital signals
• CPC Class Codes: H03G 5/16 Automatic control
• CPC Class Codes: H03G 5/165 Equalizers; Volume or gain control in limited frequency bands
• CPC Class Codes: H04R 1/22 for obtaining desired frequency characteristic only circuit for combining transducers having different responses H04R3/00; for hearing aids H04R25/407
• CPC Class Codes: H04R 2227/005 Audio distribution systems for home, i.e. multi-room use
• CPC Class Codes: H04R 27/00 Public address systems circuits for preventing acoustic reaction H04R3/02; circuits for distributing signals to loudspeakers H04R3/12; monitoring or testing arrangements for public address systems H04R29/007; amplifiers H03F
• CPC Class Codes: H04R 29/001 for loudspeakers H04R29/007 takes precedence
• CPC Class Codes: H04R 29/008 Visual indication of individual signal levels visual indication of stereophonic sound image H04S7/40
• CPC Class Codes: H04R 3/04 for correcting frequency response
• CPC Class Codes: H04R 3/12 for distributing signals to two or more loudspeakers specially adapted for hearing aids H04R25/407
• CPC Class Codes: H04R 5/04 Circuit arrangements, e.g. for selective connection of amplifier inputs/outputs to loudspeakers, for loudspeaker detection, or for adaptation of settings to personal preferences or hearing impairments combinations of amplifiers H03F3/68; stereophonic systems H04S
• CPC Class Codes: H04S 1/007 in which the audio signals are in digital form data reduction aspects thereof based on psychoacoustics G10L19/02
• CPC Class Codes: H04S 7/301 Automatic calibration of stereophonic sound system, e.g. with test microphone

Abstract

An example implementation may involve receiving, via a network interface, an indication that the first playback device is calibrated. The implementation may also involve updating a calibration state variable to indicate that the first playback device is calibrated based on receiving the indication that the first playback device is calibrated. The implementation may further involve sending, via the network interface, an indication of the updated calibration state variable to a second device.

Claims

1. A first playback device of a media playback system, the first 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, via the network interface, an indication that the first playback device is calibrated;

based on receiving the indication that the first playback device is calibrated, configuring a calibration state variable to indicate that the first playback device is calibrated;

detecting a trigger condition indicating that the first playback device has become uncalibrated; and

based on detecting the trigger condition indicating that the first playback device has become uncalibrated, updating the calibration state variable to indicate that the first playback device is uncalibrated and sending, via the network interface, an indication of the updated calibration state variable to a second device.

2. The first playback device of claim 1, wherein detecting the trigger condition indicating that the first playback device has become uncalibrated comprises receiving, from a control device, a command that causes the first playback device to join a first zone of the media playback system as a first channel of a stereo pair that includes a second playback device as a second channel of the stereo pair.

3. The first playback device of claim 1, wherein detecting the trigger condition indicating that the first playback device has become uncalibrated comprises receiving, from a control device, a command that causes the first playback device to form a bonded zone configuration with a second playback device, wherein the second playback device comprises a subwoofer.

4. The first playback device of claim 1, wherein the first playback device is a member of a zone that has a particular zone name, and wherein detecting the trigger condition indicating that the first playback device has become uncalibrated comprises receiving, from a control device, a command that changes the particular zone name of the zone.

5. The first playback device of claim 1, wherein the first playback device has a physical orientation, and wherein detecting the trigger condition indicating that the first playback device has become uncalibrated comprises detecting, via a sensor of the first playback device, that a modification to the physical orientation of the first playback device exceeds a threshold rotation.

6. The first playback device of claim 1, wherein the first playback device and a second playback device form a bonded zone configuration in which the first playback device and second playback device are arranged to jointly play back media, and wherein detecting the trigger condition indicating that the first playback device has become uncalibrated comprises receiving a command that causes the first playback device to unbond from the bonded zone configuration with the second playback device.

7. The first playback device of claim 1, wherein receiving the indication that the first playback device is calibrated comprises receiving a calibration profile indicating one or more calibration values that adjust equalization of the one or more speakers.

8. The first playback device of claim 1, wherein receiving the indication that the first playback device is calibrated comprises receiving, from a control device, the indication that the first playback device is calibrated.

9. The first playback device of claim 1, wherein receiving the indication that the first playback device is calibrated comprises receiving, from a second playback device, an indication that the first playback device is calibrated.

10. The first playback device of claim 1, wherein the second device is a second playback device of the media playback system, and wherein sending, via the network interface, the indication of the updated calibration state variable to the second device comprises sending an instruction that causes the second playback device to update a state variable that is stored on the second playback device to indicate that the first playback device is uncalibrated.

11. The first playback device of claim 1, wherein the second device is a control device of the media playback system, and wherein sending, via the network interface, the indication of the updated calibration state variable to the second device comprises sending an instruction that causes the control device to update a graphical display to indicate that the first playback device is uncalibrated.

12. The first playback device of claim 1, wherein sending, via the network interface, the indication of the updated calibration state variable to the second device comprises:

receiving, from the second device, a query for an indication of the calibration state of the first playback device; and

responsively, sending, to the second device, an indication that the first playback device is uncalibrated.

13. A first playback device of a media playback system, the first 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, via the network interface, an indication that the first playback device is calibrated;

based on receiving the indication that the first playback device is calibrated, updating a calibration state variable to indicate that the first playback device is calibrated, wherein the calibration state variable is stored in the data storage; and

sending, via the network interface, an indication of the updated calibration state variable to a second device.

14. The first playback device of claim 13, wherein the second device is a second playback device of the media playback system, and wherein sending, via the network interface, the indication of the updated calibration state variable to the second device comprises sending an instruction that causes the second playback device to update a state variable that is stored on the second playback device to indicate that the first playback device is calibrated.

15. The first playback device of claim 13, wherein the second device is a control device of the media playback system, and wherein sending, via the network interface, the indication of the updated calibration state variable to the second device comprises sending an instruction that causes the control device to update a graphical display to indicate that the first playback device is calibrated.

16. The first playback device of claim 13, wherein sending, via the network interface, the indication of the updated calibration state variable to the second device comprising sending a calibration profile indicating one or more calibration values that adjust equalization of the one or more speakers.

17. The first playback device of claim 13, wherein sending, via the network interface, the indication of the updated calibration state variable to the second device comprises:

receiving, from the second device, a query for an indication of the calibration state of the first playback device; and

responsively, sending, to the second device, an indication that the first playback device is calibrated.

18. The first playback device of claim 13, wherein the operations further comprise:

determining a time at which the first playback device was last calibrated;

identifying a bonded zone configuration in which the first playback device was configured when the first playback device was last calibrated; and

sending, to the second device, an indication of (i) the time at which the first playback device was last calibrated and (ii) the bonded zone configuration in which the first playback device was configured when the first playback device was last calibrated.

19. The first playback device of claim 13, wherein the operations further comprise:

receiving, via the network interface, an indication that a second playback device is calibrated;

based on receiving the indication that the second playback device is calibrated, updating a second calibration state variable to indicate that the second playback device is calibrated, wherein the second calibration state variable is stored in the data storage; and

sending, via the network interface, an indication of the updated second calibration state variable to another device.

20. A method comprising:

receiving, by a playback device of a media playback system, an indication that the first playback device is calibrated;

based on receiving the indication that the playback device is calibrated, configuring a calibration state variable to indicate that the playback device is calibrated;

detecting a trigger condition indicating that the playback device has become uncalibrated; and

based on detecting the trigger condition indicating that the playback device has become uncalibrated, updating the calibration state variable to indicate that the playback device is uncalibrated and sending, via the network interface, an indication of the updated calibration state variable to a second device of the media playback system.