Augmenting existing acoustic profiles

Patent metadata

Field	Value
Publication number	US-2016286330-A1
Application number	US-201514665396-A
Country	US
Kind code	A1
Filing date	Mar 23, 2015
Priority date	Mar 23, 2015
Publication date	Sep 29, 2016
Grant date	—

Abstract

The technology described in this document can be embodied in a method that includes receiving, at a processing device, a feedback signal from a recording device, and generating, based on the feedback signal, a control signal for adjusting an acoustic output of a speaker device to achieve a target acoustic distribution within the environment. The feedback signal can indicate an acoustic characteristic of an environment in which a speaker device is located. The method also includes providing the control signal to the speaker device.

First claim

What is claimed is:

1 . A method comprising:
receiving, at a processing device, a feedback signal from a recording device, wherein the feedback signal indicates an acoustic characteristic of an environment in which a speaker device is located; generating, based on the feedback signal, a control signal for adjusting an acoustic output of a speaker device to achieve a target acoustic distribution within the environment; and providing the control signal to the speaker device.

2 . The method of claim 1 , wherein the acoustic characteristic indicated by the feedback signal is based on audio output from a television speaker.

3 . The method of claim 1 , wherein the acoustic characteristic indicated by the feedback signal is based on audio output from a media playing device.

4 . The method of claim 1 , wherein the control signal comprises information on filter coefficients of an adaptive filter that controls the acoustic output of the speaker device.

5 . The method of claim 1 , further comprising performing a verification that the feedback signal substantially matches an expected template signal.

6 . The method of claim 5 , wherein the verification comprises determining a similarity measure between the feedback signal and the expected template signal.

7 . A method comprising:
recording, using a recording device, an audio signal from a remote speaker device; transmitting a feedback signal based on the audio signal recorded using the recording device; receiving a control signal responsive to the feedback signal, wherein the control signal comprises information on an adjustment of an acoustic transducer; and performing the adjustment of the acoustic transducer based on the received control signal such that an acoustic output of the acoustic transducer is changed due to the adjustment.

8 . The method of claim 7 , wherein the audio signal comprises audio output of a television speaker.

9 . The method of claim 7 , wherein the audio signal comprises audio output of a media playing device.

10 . The method of claim 7 , wherein the control signal comprises information on filter coefficients of an adaptive filter that controls the acoustic output of the acoustic transducer.

11 . The method of claim 10 , wherein the adjustment comprises updating the adaptive filter based on the information on the filter coefficients.

12 . The method of claim 11 , wherein the adjustment comprises:
obtaining a new version of the adaptive filter using the information on the filter coefficients; and transitioning an audio stream from a previous version of the adaptive filter to the new version of the adaptive filter.

13 . The method of claim 12 , wherein transitioning the audio stream comprises a crossfading from the previous version of the adaptive filter to the new version of the adaptive filter.

14 . A system comprising:
an input port configured to receive an input signal representing audio from a media device; a receiver device configured to receive a feedback signal from a speaker device, wherein the feedback signal indicates an acoustic characteristic of an environment in which the speaker device is located; one or more processors configured to generate a control signal for adjusting an acoustic output of the speaker device to achieve a target acoustic distribution within the environment; and an output port for providing the control signal to the speaker device.

15 . The system of claim 14 , wherein the feedback signal is acoustic, and the receiver device comprises a microphone for recording the feedback signal.

16 . The system of claim 14 , wherein the receiver device is configured to receive a signal transmitted in accordance with a wireless transmission standard.

17 . The system of claim 16 , wherein the wireless transmission standard is Bluetooth.

18 . The system of claim 14 , further comprising one or more transducers configured to produce an acoustic output.

19 . The system of claim 18 , further comprising an adaptive filter that controls the acoustic output produced by the one or more transducers.

20 . The system of claim 19 , wherein the control signal comprises information on filter coefficients for updating the adaptive filter.

Assignees

• Bose Corp

Inventors

• Kofman Igor
• Crist David Rolland
• Mulhearn Christopher James
• Belge Matthew
• Tiene Michael
• Mayman Avrum G

Classifications

• H04R5/02

  Spatial or constructional arrangements of loudspeakers · CPC title

• H04R2203/12

  Beamforming aspects for stereophonic sound reproduction with loudspeaker arrays · CPC title

• H04R2430/01

  Aspects of volume control, not necessarily automatic, in sound systems · CPC title

• H04R2205/024

  Positioning of loudspeaker enclosures for spatial sound reproduction · CPC title

• H04R2205/021

  Aspects relating to docking-station type assemblies to obtain an acoustical effect, e.g. the type of connection to external loudspeakers or housings, frequency improvement · CPC title