System and method for changing a channel configuration of a set of audio output devices

• US 9,723,406 B2
• Filed: 01/21/2015
• Issued: 08/01/2017
• Est. Priority Date: 01/21/2015
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Smith, Matthew Daniel, Le Nerriec, Johan, Menter, Judah John, Tai, Daniel
• Primary Examiner(s): HUBER, PAUL W
• Application Number:
  US14/601,510
• Publication Number:
  US 20160212534A1
• Time in Patent Office: 923 Days
• Field of Search: None
• CPC Class Codes: H04R 2227/003 Digital PA systems using, e.g. LAN or internet
• CPC Class Codes: H04R 2227/005 Audio distribution systems for home, i.e. multi-room use
• CPC Class Codes: H04R 2420/01 Input selection or mixing for amplifiers or loudspeakers
• CPC Class Codes: H04R 3/12 for distributing signals to two or more loudspeakers specially adapted for hearing aids H04R25/407

Abstract

A set of audio output devices may be established and configured to output channel specific audio. Once established, the channel configuration may be changed and updated in response to events such as changes to user preference, or the addition or subtraction of audio output devices to the network. In some embodiments, the reconfiguration may be performed on the fly while audio content is being outputted by the audio output devices.

Claims

1. A method for outputting audio content over a network, the method comprising:

assigning each of a plurality of audio output devices in the network to a corresponding channel;

configuring each of the plurality of audio output devices to output at least a portion of the audio content based at least in part on the assigned channel; and

during playback of the audio content, dynamically changing the channel assignments based at least in part on changes to the plurality of audio output devices.

2. The method of claim 1, wherein the channel assignment for each of the plurality of audio output devices is based on at least one of a number of audio output devices available in the network, a relative position of each of the plurality of audio output devices in the network, or a predetermined configuration scheme.

3. The method of claim 1, wherein the dynamically changing comprises:

detecting an addition of a new audio output device in the network; and

assigning the new audio output device to a new channel or an existing channel assigned to one of the plurality of audio output devices.

4. The method of claim 3, further comprising:

reassigning one of the plurality of audio output devices to the new channel.

5. The method of claim 1, wherein the dynamically changing comprises:

detecting a removal or failure of one of the plurality of audio output devices; and

reassigning at least one of the plurality of audio output devices to a different channel upon detecting the removal or failure of the one of the plurality of audio output devices.

6. The method of claim 1, wherein the dynamically changing comprises:

reassigning one or more of the plurality of audio output devices to a new or different channel.

7. The method of claim 1, further comprising:

detecting a bandwidth of each of the plurality of audio output devices.

8. The method of claim 7, further comprising:

transmitting the audio content to a first audio output device having the highest bandwidth among the plurality of audio output devices; and

enabling the first audio output device to distribute at least a portion of the audio content to others of the plurality of audio output devices.

9. The method of claim 1, wherein the configuring comprises:

transmitting the audio content to each of the plurality of audio output devices; and

instructing each of the plurality of audio output devices to filter the audio content for the portion to be output by the corresponding audio output device based on the assigned channel.

10. The method of claim 1, further comprising:

detecting changes in a location of a user; and

dynamically adjusting one or more audio output characteristics of at least one of the plurality of audio output devices based on the changes in the location of the user.

11. The method of claim 10, wherein the one or more audio output characteristics includes at least one of a delay or volume of audio signals output by the at least one of the plurality of audio output devices.

12. A system for outputting audio content over a network, the system comprising:

one or more processors; and

a memory storing instructions that, when executed by the one or more processors, cause the system to;

assign each of a plurality of audio output devices in the network to a corresponding channel;

configure each of the plurality of audio output devices to output at least a portion of the audio content based at least in part on the assigned channel; and

during playback of the audio content, dynamically change the channel assignments based at least in part on changes to the plurality of audio output devices.

13. The system of claim 12, wherein the channel assignment for each of the plurality of audio output devices is based on at least one of a number of audio output devices available in the network, a relative position of each of the plurality of audio output devices in the network, or a predetermined configuration scheme.

14. The system of claim 12, wherein execution of the instructions to dynamically change the channel assignments causes the system to:

detect an addition of a new audio output device in the network; and

assign the new audio output device to a new channel or an existing channel assigned to one of the plurality of audio output devices.

15. The system of claim 12, wherein execution of the instructions to dynamically change the channel assignments causes the system to:

detect a removal or failure of one of the plurality of audio output devices; and

reassign at least one of the plurality of audio output devices to a different channel upon detecting the removal or failure of the one of the plurality of audio output devices.

16. The system of claim 12, wherein execution of the instructions to dynamically change the channel assignments causes the system to:

reassign one or more of the plurality of audio output devices to a new or different channel.

17. The system of claim 12, wherein execution of the instructions further causes the system to:

detect a bandwidth of each of the plurality of audio output devices;

transmit the audio content to a first audio output device having the highest bandwidth among the plurality of audio output devices; and

enable the first audio output device to distribute at least a portion of the audio content to others of the plurality of audio output devices.

18. The system of claim 12, wherein execution of the instructions to configure each of the plurality of audio output devices causes the system to:

transmit the audio content to each of the plurality of audio output devices; and

instruct each of the plurality of audio output devices to filter the audio content for the portion to be output by the corresponding audio output device based on the assigned channel.

19. The system of claim 12, wherein execution of the instructions further causes the system to:

detect changes in a location of a user; and

dynamically adjust one or more audio output characteristics of at least one of the plurality of audio output devices based on the changes in the location of the user.

20. A non-transitory computer-readable medium storing instructions that, when executed by one or more processors of an audio output system, cause the system to:

assign each of a plurality of audio output devices in a network to a corresponding channel;

configure each of the plurality of audio output devices to output at least a portion of audio content based at least in part on the assigned channel; and

during playback of the audio content, dynamically change the channel assignments based at least in part on changes to the plurality of audio output devices.