IP Library › Granted Patent US 12,231,864
Granted Patent B2
US 12,231,864 · App. 18/526,897 · Granted Feb 18, 2025

Apparatus and method for processing multi-channel audio signal

Inventors: Yong Ju Lee (Daejeon, KR); Jeong Il Seo (Daejeon, KR); Seung Kwon Beack (Daejeon, KR); Kyeong Ok Kang (Daejeon, KR); Jin Woong Kim (Daejeon, KR); Jae Hyoun Yoo (Daejeon, KR)
Assignee: Electronics and Telecommunications Research Institute
H04S3/008G10L19/008H04S2400/01
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Quick Facts
Patent No.
US 12,231,864
App. No.
18/526,897
Granted
Feb 18, 2025
Kind
B2
Abstract

Disclosed is an apparatus and method for processing a multichannel audio signal. A multichannel audio signal processing method may include: generating an N-channel audio signal of N channels by down-mixing an M-channel audio signal of M channels; and generating a stereo audio signal by performing binaural rendering of the N-channel audio signal.

Claims (15)

1. A multichannel audio signal processing method processed by a decoder, comprising:

generating an N-channel audio signal by down-mixing an M-channel audio signal in a format converter according to reproduction layout; and

outputting the N-channel audio signal,

wherein a plurality of channels corresponding to the M-channel audio signal are inputted to the format converter through a first dynamic range control (DRC1).

2. The method of claim 1 , wherein the M-channel audio signal includes a height channel,

wherein the generating the N-channel audio signal comprises downmixing the M-channel audio signal to minimize loss of the height channel included in the M-channel audio signal to generate the N-channel audio signal including the height channel.

3. The method of claim 1 , wherein the number of M channels is greater than the number of N channels.

4. A format converter comprising:

one or more processor configured to:

generate an N-channel audio signal by down-mixing an M-channel audio signal in a format converter according to reproduction layout; and

output the N-channel audio signal,

wherein a plurality of channels corresponding to the M-channel audio signal are inputted to the format converter through a first dynamic range control (DRC1).

5. The format converter of claim 4 , wherein the M-channel audio signal includes a height channel,

wherein one or more processor downmix the M-channel audio signal to minimize loss of the height channel included in the M-channel audio signal to generate the N-channel audio signal including the height channel.

6. The method of claim 4 , wherein the number of M channels is greater than the number of N channels.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 1, 2023
From: LEE, YONG JU; SEO, JEONG IL; BEACK, SEUNG KWON; KANG, KYEONG OK; KIM, JIN WOONG; YOO, JAE HYOUN
To: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Reel/Frame 065738/0367 →
Priority Claims (2)
KR 10-2013-0043383 · Apr 19, 2013 · national
KR 10-2014-0046741 · Apr 18, 2014 · national
Continuity (5)
Continuation 17877696 · Jul 29, 2022
Continuation 16703226 · Dec 4, 2019
Continuation 16126466 · Sep 10, 2018
Continuation 14767538
Related Publication 20240098437A1 · Mar 21, 2024
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