Audio system with mixed rendering audio enhancement

Patent metadata

Field	Value
Publication number	US-11895472-B2
Application number	US-202217835223-A
Country	US
Kind code	B2
Filing date	Jun 8, 2022
Priority date	Jun 8, 2022
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

Various implementations include audio systems and methods for mixed rendering to enhance audio output. Certain implementations include an audio system having: at least one far-field speaker configured to output a first portion of an audio signal; and a pair of non-occluding near-field speakers configured to output a second portion of the audio signal in synchrony with the output of the first portion of the audio signal, where the first portion of the audio signal is distinct from the second portion of the audio signal.

First claim

We claim:

1. An audio system comprising:
at least one far-field speaker configured to output a first portion of an audio signal; and
a pair of non-occluding near-field speakers configured to output a second portion of the audio signal in synchrony with the output of the first portion of the audio signal,
wherein the first portion of the audio signal is distinct from the second portion of the audio signal, and
wherein the first portion of the audio signal and the second portion of the audio signal include distinct frequency ranges from the audio signal.

2. The system of claim 1 , wherein the first portion of the audio signal and the second portion of the audio signal include distinct channels of common content.

3. The system of claim 1 , wherein the second portion of the audio signal is binaurally encoded, and wherein the second portion of the audio signal increases externalization of content in the audio signal when output in synchrony with the output of the first portion of the audio signal.

4. The system of claim 1 , wherein the second portion of the audio signal enhances speech content within the audio signal, and wherein the second portion of the audio signal increases intelligibility of the speech content within the audio signal.

5. The system of claim 1 , wherein the first portion of the audio signal does not include speech content and wherein the second portion of the audio signal includes speech content.

6. The system of claim 1 , wherein
the first portion of the audio signal has a larger frequency range than the frequency range of the second portion of the audio signal.

7. The system of claim 1 , wherein the pair of non-occluding near-field speakers are housed in a wearable audio device, wherein a first speaker in the pair of non-occluding near-field speakers is configured to output audio to a left ear of a user and wherein a second speaker in the pair of non-occluding near-field speakers is configured to output audio to a right ear of the user.

8. The system of claim 1 , wherein
the at least one far-field speaker includes multiple speakers configured to output at least left, right, and center channels of the audio signal.

9. The system of claim 1 , wherein the at least one far-field speaker is configured to output a third portion of the audio signal when not providing output in synchrony with the pair of non-occluding near-field speakers, the third portion of the audio signal distinct from the first portion of the audio signal.

10. The system of claim 1 , wherein the second portion of the audio signal is user-configurable to enhance at least one of: externalization, spatialization, or dialog.

11. The system of claim 1 , wherein the second portion of the audio signal is automatically customized based on detection of a type of device housing at least one of the pair of non-occluding near-field speakers, wherein the type of device is detected using a device identifier, and wherein the second portion of the audio signal is automatically customized based on the device identifier such that the second portion of the audio signal is configured to vary, in at least one parameter including volume or equalization, based on distinctions in device identifier.

12. The system of claim 1 , wherein the pair of non-occluding near-field speakers are configured to output the second portion of the audio signal in synchrony with the output of the first portion of the audio signal in response to a trigger, the trigger including at least one of: a detected connection between a first device housing the pair of non-occluding near-field speakers and a second device housing the at least one far field speaker, detected directional alignment between the first device and the second device, a grouping request by a user, proximity or location detection between the first device and the second device, or a user-initiated trigger or command to output in synchrony.

13. The system of claim 1 , further comprising:
a first device housing a first far-field speaker, wherein the first device is configured to transmit the second portion of the audio signal to a second device that includes the pair of non-occluding near-field speakers, wherein the transmission includes playback timing data to enable the second portion of the audio signal to be output in synchrony with the first portion of the audio signal; and
a third device including an additional pair of non-occluding near-field speakers, wherein the first device is configured to transmit a third portion of the audio signal to the third device to allow simultaneous output of distinct portions of the audio signal with the first portion of the audio signal.

14. The system of claim 1 , further comprising a first device including the at least one far-field speaker and a second device including the pair of non-occluding near-field speakers, wherein either,
the first device and the second device receive the audio signal from a common source device, or
the first device receives the first portion of the audio signal from a first source device and the second device receives the second portion of the audio signal from a second source device.

15. The system of claim 1 , wherein the at least one far field speaker and the pair of non-occluding near-field speakers receive the audio signal from a common source device, wherein the audio signal includes audio content accounting for surround effects and height effects, and wherein outputting the audio signal at the at least one far field speaker and the pair of non-occluding near-field speakers excites a room housing the at least one far field speaker and the pair of non-occluding near-field speakers to enhance externalization for a user.

16. The system of claim 1 , wherein the second portion of the audio signal excludes frequencies below a predetermined threshold.

17. The system of claim 1 , wherein the at least one far field speaker is housed in a soundbar.

18. A method comprising:
outputting a first portion of an audio signal using at least one far-field speaker; and
outputting a second portion of the audio signal, using a pair of non-occluding near-field speakers, in synchrony with the output of the first portion of the audio signal,
wherein the first portion of the audio signal is distinct from the second portion of the audio signal, and
wherein the first portion of the audio signal and the second portion of the audio signal include distinct frequency ranges from the audio signal.

19. The method of claim 18 , wherein the first portion of the audio signal and the second portion of the audio signal include distinct channels of common content, and wherein the second portion of the audio signal is user-configurable to enhance at least one of: externalization, spatialization or dialog.

20. The method of claim 18 , wherein the second portion of the audio signal is binaurally encoded, and wherein the second portion of the audio signal increases externalization of content in the audio signal when output in synchrony with the output of the first portion of the audio signal.

21. The method of claim 18 , wherein the second portion of the audio signal enhances speech content within the audio signal, and wherein the second portion of the audio signal increases intelligibility of the speech content within the audio signal.

22. The method of claim 18 , wherein the first portion of the audio signal does not include speech content and wherein the second portion of the audio signal includes speech content.

23. Th

Assignees

• Bose Corp

Inventors

• Tracey James Walter
• Torio Guy Anthony
• Freeman Eric John
• Blagrove Nathan
• Carvajal Santiago

Classifications

• H04R3/12 Primary

  for distributing signals to two or more loudspeakers {(specially adapted for hearing aids H04R25/407)} · CPC title

• G10L21/0216

  characterised by the method used for estimating noise · CPC title

• H04R5/02 Primary

  Spatial or constructional arrangements of loudspeakers · CPC title

• H04R5/04

  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 title

• H04S7/30

  Control circuits for electronic adaptation of the sound field · CPC title