公开(公告)号：US10140999B2

公开(公告)日：2018-11-27

申请号：US15383200

申请日：2016-12-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Yong Ju Lee ,  Tae Jin Lee ,  Jae-Hyoun Yoo ,  Kyeongok Kang ,  Jin Woong Kim ,  Chieteuk Ahn

IPC: H04N21/235 ,  G10L19/16 ,  H04N7/52 ,  H04N21/2343 ,  H04N21/236 ,  H04N21/434 ,  H04N21/435 ,  H04N21/439 ,  H04N21/6547 ,  H04N21/81 ,  H04L12/701 ,  G10L19/008 ,  G10L19/26 ,  H04H20/95

Abstract: The present invention relates to a system for transmitting and receiving audio, particularly, to a method and apparatus for transmitting and receiving of object-based audio contents, which packetizes audio objects having the same characteristic. To achieve the above, the present invention includes filtering a plurality of ESs according to common information, adding a packet header to the respective filtered ESs and generate ES packets, aggregating all the generated ES packets and then adding a multi-object packet header to the aggregated ES packets to generate an object packet, and multiplexing the generated object packet, packetizing the multiplexed object packet according to a transmitting media and transmitting the packetized object packet.

公开(公告)号：US10002619B2

公开(公告)日：2018-06-19

申请号：US15200404

申请日：2016-07-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

Inventor： Seungkwon Beack ,  Tae Jin Lee ,  Min Je Kim ,  Kyeongok Kang ,  Dae Young Jang ,  Jeongil Seo ,  Jin Woo Hong ,  Chieteuk Ahn ,  Ho Chong Park ,  Young-cheol Park

IPC: G10L19/022 ,  G10L19/22 ,  G10L19/06 ,  G10L19/18

CPC classification number: G10L19/22 ,  G10L19/022 ,  G10L19/06 ,  G10L19/18

Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.

公开(公告)号：US20180068667A1

公开(公告)日：2018-03-08

申请号：US15810732

申请日：2017-11-13

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Industry-Academic Collaboration Foundation

Inventor： Tae Jin Lee ,  Seung Kwon Baek ,  Min Je Kim ,  Dae Young Jang ,  Jeongil Seo ,  Kyeongok Kang ,  Jin Woo Hong ,  Hochong Park ,  Young Cheol Park

IPC: G10L19/008 ,  G10L19/12 ,  G10L19/20 ,  G10L19/02 ,  G10L19/00 ,  G10L19/04

CPC classification number: G10L19/008 ,  G10L19/00 ,  G10L19/02 ,  G10L19/04 ,  G10L19/12 ,  G10L19/20

Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate ; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.

公开(公告)号：US09818411B2

公开(公告)日：2017-11-14

申请号：US14534781

申请日：2014-11-06

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Kwangwoon University Industry—Academic Collaboration Foundation

Inventor： Tae Jin Lee ,  Seung Kwon Baek ,  Min Je Kim ,  Dae Young Jang ,  Jeongil Seo ,  Kyeongok Kang ,  Jin Woo Hong ,  Hochong Park ,  Young Cheol Park

IPC: G10L21/00 ,  G10L19/008 ,  G10L19/20 ,  G10L19/12 ,  G10L19/00 ,  G10L19/02 ,  G10L19/04

CPC classification number: G10L19/008 ,  G10L19/00 ,  G10L19/02 ,  G10L19/04 ,  G10L19/12 ,  G10L19/20

Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.

公开(公告)号：US09774974B2

公开(公告)日：2017-09-26

申请号：US14851913

申请日：2015-09-11

Applicant: Electronics and Telecommunications Research Institute ,  Kyonggi University Industry & Academia Cooperation Foundation

Inventor： Jae Hyoun Yoo ,  Tae Jin Lee ,  Seok Jin Lee

IPC: H04S3/02 ,  H04S3/00 ,  G10L19/16 ,  G10L19/008

CPC classification number: H04S3/02 ,  G10L19/008 ,  G10L19/173 ,  H04S3/008 ,  H04S2400/01 ,  H04S2400/03

Abstract: An audio metadata providing apparatus and method and a multichannel audio data playback apparatus and method to support a dynamic format conversion are provided. Dynamic format conversion information may include information about a plurality of format conversion schemes that are used to convert a first format set by an author of multichannel audio data into a second format that is based on a playback environment of the multichannel audio data and that are each set for corresponding playback periods of the multichannel audio data. The audio metadata providing apparatus may provide audio metadata including the dynamic format conversion information. The multichannel audio data playback apparatus may identify the dynamic format conversion information from the audio metadata, may convert the first format of the multichannel audio data into the second format based on the identified dynamic format conversion information, and may play back the multichannel audio data in the second format.

公开(公告)号：US09728198B2

公开(公告)日：2017-08-08

申请号：US15194174

申请日：2016-06-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung Kwon Beack ,  Tae Jin Lee ,  Min Je Kim ,  Kyeongok Kang ,  Dae Young Jang ,  Jin Woo Hong ,  Jeongil Seo ,  Chieteuk Ahn ,  Hochong Park ,  Young-cheol Park

IPC: G10L19/125 ,  G10L19/22

CPC classification number: G10L19/087 ,  G10L19/125 ,  G10L19/22 ,  G10L19/26

Abstract: Disclosed is an LPC residual signal encoding/decoding apparatus of an MDCT based unified voice and audio encoding device. The LPC residual signal encoding apparatus analyzes a property of an input signal, selects an encoding method of an LPC filtered signal, and encode the LPC residual signal based on one of a real filterbank, a complex filterbank, and an algebraic code excited linear prediction (ACELP).

公开(公告)号：US09384748B2

公开(公告)日：2016-07-05

申请号：US14588638

申请日：2015-01-02

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION

Inventor： Seungkwon Beack ,  Tae Jin Lee ,  Min Je Kim ,  Kyeongok Kang ,  Dae Young Jang ,  Jeongil Seo ,  Jin Woo Hong ,  Chieteuk Ahn ,  Ho Chong Park ,  Young-cheol Park

IPC: G10L19/07 ,  G10L19/18 ,  G10L19/022 ,  G10L19/06

CPC classification number: G10L19/22 ,  G10L19/022 ,  G10L19/06 ,  G10L19/18

Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.

Abstract translation: 提供了可以基于模式切换处理窗口序列的统一语音和音频编解码器（USAC）。 USAC可以通过在发生模式切换时基于折叠点在帧之间重叠来执行编码或解码。 USAC可以针对每种情况处理不同的窗口序列以执行编码或解码，从而可以提高编码效率。

公开(公告)号：US20150154974A1

公开(公告)日：2015-06-04

申请号：US14605006

申请日：2015-01-26

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  Kwangwoon University Industry-Academic Collaboration Foundation

Inventor： Tae Jin Lee ,  Seung Kwon Baek ,  Min Je Kim ,  Dae Young Jang ,  Jeongil Seo ,  Kyeongok Kang ,  Jin Woo Hong ,  Hochong Park ,  Young Cheol Park

IPC: G10L19/12

CPC classification number: G10L19/12 ,  G10L19/008 ,  G10L19/02 ,  G10L19/20 ,  G10L19/22 ,  G11C2207/16

Abstract: Provided are an apparatus and a method for integrally encoding and decoding a speech signal and a audio signal. The encoding apparatus may include: an input signal analyzer to analyze a characteristic of an input signal; a first conversion encoder to convert the input signal to a frequency domain signal, and to encode the input signal when the input signal is a audio characteristic signal; a Linear Predictive Coding (LPC) encoder to perform LPC encoding of the input signal when the input signal is a speech characteristic signal; and a bitstream generator to generate a bitstream using an output signal of the first conversion encoder and an output signal of the LPC encoder.

Abstract translation: 提供了一种用于对语音信号和音频信号进行整体编码和解码的装置和方法。 编码装置可以包括：输入信号分析器，用于分析输入信号的特性; 第一转换编码器，用于将输入信号转换为频域信号，并且在输入信号是音频特征信号时对输入信号进行编码; 线性预测编码（LPC）编码器，用于当输入信号是语音特征信号时执行输入信号的LPC编码; 以及比特流发生器，用于使用第一转换编码器的输出信号和LPC编码器的输出信号来产生比特流。

公开(公告)号：US11881227B2

公开(公告)日：2024-01-23

申请号：US18097054

申请日：2023-01-13

Applicant: Electronics and Telecommunications Research Institute ,  Industry-Academic Cooperation Foundation, Yonsei University

Inventor： In Seon Jang ,  Seung Kwon Beack ,  Jong Mo Sung ,  Tae Jin Lee ,  Woo Taek Lim ,  Byeong Ho Cho ,  Hong Goo Kang ,  Ji Hyun Lee ,  Chan Woo Lee ,  Hyung Seob Lim

IPC: G10L19/04 ,  G10L19/038 ,  G10L19/002 ,  G10L19/12 ,  G10L19/08 ,  G10L19/09 ,  G10L19/06 ,  G10L19/13 ,  G10L19/02

CPC classification number: G10L19/038 ,  G10L19/002 ,  G10L19/0204 ,  G10L19/04 ,  G10L19/06 ,  G10L19/08 ,  G10L19/09 ,  G10L19/12 ,  G10L19/13

Abstract: A method, executed by a processor for compressing an audio signal in multiple layers, may comprise: (a) restoring, in a highest layer, an input audio signal as a first signal; (b) restoring, in at least one intermediate layer, a signal obtained by subtracting an upsampled signal, which is obtained by upsampling the audio signal restored in the highest layer or an immediately previous intermediate layer, from the input audio signal as a second signal; and (c) restoring, in a lowest layer, a signal obtained by subtracting an upsampled signal, which is obtained by upsampling the audio signal restored in an intermediate layer immediately before the lowest layer, from the input audio signal as a third signal, wherein the first signal, the second signal, and the third signal are combined to output a final restoration audio signal.

公开(公告)号：US11823688B2

公开(公告)日：2023-11-21

申请号：US17390753

申请日：2021-07-30

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  The Trustees of Indiana University

Inventor： Woo-taek Lim ,  Seung Kwon Beack ,  Jongmo Sung ,  Tae Jin Lee ,  Inseon Jang ,  Minje Kim

IPC: G10L19/008 ,  G06N3/04 ,  G10L19/032 ,  G10L19/24

CPC classification number: G10L19/008 ,  G06N3/04 ,  G10L19/032

Abstract: Disclosed are a method of encoding and decoding an audio signal and an encoder and a decoder performing the method. The method of encoding an audio signal includes identifying an input signal, and generating a bitstring of each encoding layer by applying, to the input signal, an encoding model including a plurality of successive encoding layers that encodes the input signal, in which a current encoding layer among the encoding layers is trained to generate a bitstring of the current encoding layer by encoding an encoded signal which is a signal encoded in a previous encoding layer and quantizing an encoded signal which is a signal encoded in the current encoding layer.