Title:
ADAPTIVE BITRATE CODING FOR SPATIAL AUDIO STREAMING
Document Type and Number:
WIPO Patent Application WO/2019/165642
Kind Code:
A1
Abstract:
Techniques are provided for spatial audio streaming using adaptive bitrate encoding and decoding in bandwidth limited virtual reality applications. A methodology implementing the techniques according to an embodiment includes calculating weight factors for audio channels associated with each of a plurality of microphones. The weight factors are based on the position and head angle, relative to the microphones, of a user wearing a head mounted display (HMD). The method also includes encoding and decoding the audio channels, for transmission to the HMD, at a selected bitrate, the bitrate based on the weight factor for the audio channel. The method further includes applying an adaptive gain compensation to each of the received and decoded audio channels, the gain compensation also based on the weight factor. The method further includes mixing the resulting gain compensated channels to generate a stereo audio signal to be played through speakers of the HMD.
Inventors:
CHEN FAN (US)
QIU BO (US)
WOODRUFF BRIAN E (US)
SANKHAGOWIT PETER (US)
LIN YUNBIAO (CN)
TANG WENYI (CN)
ZHOU YONGFA (CN)
YANG JIANWEI (CN)
ZHU JIANFANG (US)
BALASUBRAMANIAN PRIYA (US)
SINGHI ASHISH (US)
WANG YATING (CN)
YANG YU Y (CN)
TURABI AREEBA (US)
QIU BO (US)
WOODRUFF BRIAN E (US)
SANKHAGOWIT PETER (US)
LIN YUNBIAO (CN)
TANG WENYI (CN)
ZHOU YONGFA (CN)
YANG JIANWEI (CN)
ZHU JIANFANG (US)
BALASUBRAMANIAN PRIYA (US)
SINGHI ASHISH (US)
WANG YATING (CN)
YANG YU Y (CN)
TURABI AREEBA (US)
Application Number:
PCT/CN2018/077897
Publication Date:
September 06, 2019
Filing Date:
March 02, 2018
Export Citation:
Assignee:
INTEL CORP (US)
CHEN FAN (US)
QIU BO (US)
WOODRUFF BRIAN E (US)
SANKHAGOWIT PETER (US)
LIN YUNBIAO (CN)
TANG WENYI (CN)
ZHOU YONGFA (CN)
YANG JIANWEI (CN)
ZHU JIANFANG (US)
BALASUBRAMANIAN PRIYA (US)
SINGHI ASHISH (US)
WANG YATING (CN)
YANG YU Y (CN)
TURABI AREEBA (US)
CHEN FAN (US)
QIU BO (US)
WOODRUFF BRIAN E (US)
SANKHAGOWIT PETER (US)
LIN YUNBIAO (CN)
TANG WENYI (CN)
ZHOU YONGFA (CN)
YANG JIANWEI (CN)
ZHU JIANFANG (US)
BALASUBRAMANIAN PRIYA (US)
SINGHI ASHISH (US)
WANG YATING (CN)
YANG YU Y (CN)
TURABI AREEBA (US)
International Classes:
G10L19/02; H04N19/134
Foreign References:
| US20120173247A1 | 2012-07-05 | |||
| US20160255348A1 | 2016-09-01 | |||
| CN103052984A | 2013-04-17 | |||
| US20160035357A1 | 2016-02-04 |
Attorney, Agent or Firm:
NTD PATENT & TRADEMARK AGENCY LIMITED (CN)
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