Calibration state variable

• US 9,788,113 B2
• Filed: 07/07/2015
• Issued: 10/10/2017
• Est. Priority Date: 06/28/2012
• Status: Active Grant

• Current Assignee: Sonos, Inc.
• Original Assignee: Sonos, Inc.
• Inventors: Wilberding, Dayn, Griffiths, Neil
• Primary Examiner(s): Huber, Paul
• Application Number:
  US14/793,190
• Publication Number:
  US 20160014535A1
• Time in Patent Office: 826 Days
• Field of Search: None
• 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 playback device of a media playback system, the 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 playback device is calibrated, wherein the playback device has a physical orientation;

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, wherein detecting the trigger condition indicating that the playback device has become uncalibrated comprises detecting, via a sensor of the playback device, that a modification to the physical orientation of the playback device exceeds a threshold rotation; 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.

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

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

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

5. The playback device of claim 1, wherein the playback device is a first playback device of the media playback system, and 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.

6. The 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 playback device is uncalibrated.

7. The 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 playback device; and

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

8. A method comprising:

receiving, by a playback device of a media playback system, an indication that the playback device is calibrated, wherein the playback device has a physical orientation;

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, wherein detecting the trigger condition indicating that the playback device has become uncalibrated comprises detecting, via a sensor of the playback device, that a modification to the physical orientation of the playback device exceeds a threshold rotation; 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 a network interface, an indication of the updated calibration state variable to a second device of the media playback system.

9. The method of claim 8, wherein receiving the indication that the playback device is calibrated comprises receiving a calibration profile indicating one or more calibration values that adjust equalization of one or more speakers.

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

11. The method of claim 8, wherein the playback device is a first playback device of the media playback system, and wherein receiving the indication that the playback device is calibrated comprises receiving, from a second playback device, an indication that the first playback device is calibrated.

12. The method of claim 8, wherein the playback device is a first playback device of the media playback system, and 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.

13. The method of claim 8, 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 playback device is uncalibrated.

14. Tangible, non-transitory, computer-readable media having instructions encoded therein, wherein the instructions, when executed by one or more processors of a playback device of a media playback system, cause the playback device to perform functions comprising:

receiving an indication that the playback device is calibrated, wherein the playback device has a physical orientation;

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, wherein detecting the trigger condition indicating that the playback device has become uncalibrated comprises detecting, via a sensor of the playback device, that a modification to the physical orientation of the playback device exceeds a threshold rotation; 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 a network interface, an indication of the updated calibration state variable to a second device of the media playback system.

15. The tangible, non-transitory, computer-readable media of claim 14, wherein receiving the indication that the playback device is calibrated comprises receiving a calibration profile indicating one or more calibration values that adjust equalization of one or more speakers.

16. The tangible, non-transitory, computer-readable media of claim 14, wherein receiving the indication that the playback device is calibrated comprises receiving, from a control device, the indication that the playback device is calibrated.

17. The tangible, non-transitory, computer-readable media of claim 14, wherein the playback device is a first playback device of the media playback system, and wherein receiving the indication that the playback device is calibrated comprises receiving, from a second playback device, an indication that the first playback device is calibrated.

18. The tangible, non-transitory, computer-readable media of claim 14, wherein the playback device is a first playback device of the media playback system, and 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.

19. The tangible, non-transitory, computer-readable media of claim 14, 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 playback device is uncalibrated.

20. The tangible, non-transitory, computer-readable media of claim 14, 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 playback device; and

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