公开(公告)号：US20170251320A1

公开(公告)日：2017-08-31

申请号：US15400755

申请日：2017-01-06

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Ho JEONG ,  Tae Jin LEE ,  Dae Young JANG ,  Jin Soo CHOI

IPC: H04S1/00 ,  G10L21/0332 ,  G10L21/028

CPC classification number: G10L21/0332 ,  G10L19/008 ,  G10L21/028 ,  H04S2400/15

Abstract: Provided is an apparatus and method for creating multilingual audio content based on a stereo audio signal. The method of creating multilingual audio content including adjusting an energy value of each of a plurality of sound sources provided in multiple languages, setting an initial azimuth angle of each of the sound sources based on a number of the sound sources, mixing each of the sound sources to generate a stereo signal based on the set initial azimuth angle, separating the sound sources to play the mixed sound sources using a sound source separating algorithm, and storing the mixed sound sources based on a sound quality of each of the separated sound sources.

公开(公告)号：US20170251319A1

公开(公告)日：2017-08-31

申请号：US15288033

申请日：2016-10-07

Applicant: Electronics and Telecommunications Research Institute

Inventor： Young Ho JEONG ,  Tae Jin LEE ,  Dae Young JANG ,  Jin Soo CHOI

IPC: H04S1/00 ,  G10L19/022 ,  G10L19/008

CPC classification number: G10L19/022 ,  G10L19/008 ,  G10L21/028 ,  H04S2400/15

Abstract: Provided is a method and apparatus for synthesizing a separated sound source, the method including generating spatial information associated with a sound source included in a frame of a stereo audio signal, and synthesizing a separated frequency-domain sound source from the frame of the stereo audio signal based on the spatial information, wherein the spatial information includes a frequency-azimuth plane representing an energy distribution corresponding to a frequency and an azimuth of the frame of the stereo audio signal.

公开(公告)号：US20160351201A1

公开(公告)日：2016-12-01

申请号：US15230616

申请日：2016-08-08

Applicant: Electronics and Telecommunications Research Institute

Inventor： Yong Ju LEE ,  Tae Jin LEE ,  Kyeong Ok KANG ,  Jin Woong KIM ,  Chie Teuk AHN

IPC: G10L19/16 ,  H04H20/89 ,  H04H20/95 ,  G10L19/008 ,  G10L19/20

CPC classification number: G10L19/167 ,  G10L19/008 ,  G10L19/20 ,  H04H20/89 ,  H04H20/95 ,  H04N21/2335 ,  H04N21/4394 ,  H04N21/8106

Abstract: A broadcast transmitting apparatus and method, and a broadcast playback apparatus and method for providing an object-based audio by encoding and decoding a multichannel audio signal are provided. The broadcast transmitting apparatus may generate audio identification information used to determine whether the multichannel audio signal is an object-based audio signal. When the multichannel audio signal is determined to be the object-based audio signal, based on the audio identification information, the broadcast playback apparatus may control and output the multichannel audio signal for each channel.

Abstract translation: 提供广播发送装置和方法以及通过对多声道音频信号进行编码和解码来提供基于对象的音频的广播回放装置和方法。 广播发送装置可以生成用于确定多声道音频信号是否是基于对象的音频信号的音频识别信息。 当多声道音频信号被确定为基于对象的音频信号时，基于音频识别信息，广播回放设备可以控制和输出每个频道的多声道音频信号。

公开(公告)号：US20160247502A1

公开(公告)日：2016-08-25

申请号：US14817292

申请日：2015-08-04

Applicant: Electronics and Telecommunications Research Institute

Inventor： Tae Jin PARK ,  Yong Ju LEE ,  Seung Kwon BEACK ,  Jong Mo SUNG ,  Tae Jin LEE ,  Jin Soo CHOI

IPC: G10L15/20 ,  G10L15/22 ,  G10L21/0232

CPC classification number: G10L15/20 ,  G10L15/06 ,  G10L15/22 ,  G10L25/03

Abstract: Provided is an audio signal processing apparatus and method that may convert a speech and audio signal to a spectrogram image, calculate a local gradient using a mask matrix from the spectrogram image, divide the local gradient into blocks of a preset size, generate a weighted histogram for each block, generate an audio feature vector by connecting weighted histograms of the blocks, generate a feature set by performing a discrete cosine transform (DCT) on a feature set of the audio feature vector, and generate an optimized feature set by eliminating an unnecessary region from the transformed feature set and reducing a size of the transformed feature set.

Abstract translation: 提供了一种音频信号处理装置和方法，其可以将语音和音频信号转换为频谱图，使用来自频谱图的掩码矩阵计算局部梯度，将局部梯度划分成预设大小的块，生成加权直方图 对于每个块，通过连接块的加权直方图来生成音频特征向量，通过在音频特征向量的特征集上执行离散余弦变换（DCT）生成特征集，并通过消除不必要的 区域，并减小变换后的特征集的大小。

公开(公告)号：US20150095023A1

公开(公告)日：2015-04-02

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: G10L19/008 ,  G10L19/12

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.

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编码装置，并且可以包括：输入信号分析器，用于分析输入信号的特性; 立体声编码器，当输入信号是立体声信号时，将输入信号向下混合成单声道信号，并提取立体声声像信息; 用于扩展输入信号的频带的频带扩展器; 用于转换采样率的采样率转换器; 语音信号编码器，当所述输入信号是语音特征信号时，使用语音编码模块对所述输入信号进行编码; 音频信号编码器，当所述输入信号是音频特征信号时，使用音频编码模块对所述输入信号进行编码; 以及比特流发生器，用于生成比特流。

公开(公告)号：US20140244244A1

公开(公告)日：2014-08-28

申请号：US14191929

申请日：2014-02-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jong Mo SUNG ,  Seung Kwon BEACK ,  Tae Jin LEE ,  Kyeong Ok KANG

IPC: G10L19/02 ,  G10L19/04

CPC classification number: G10L19/04 ,  G10L19/0212 ,  G10L19/12

Abstract: A frequency spectrum processing apparatus and method using a source filter are disclosed. The frequency spectrum processing apparatus may include a first excitation spectrum generation unit to generate a first excitation spectrum using a tonal excitation spectrum according to an input signal and a gain of the tonal excitation spectrum, a second excitation spectrum generation unit to generate a second excitation spectrum using a non-tonal excitation spectrum according to the input signal and a gain of the non-tonal excitation spectrum, and an output spectrum generation unit to generate an output spectrum using the first excitation spectrum and the second excitation spectrum.

Abstract translation: 公开了一种使用源滤波器的频谱处理装置和方法。 频谱处理装置可以包括第一激励频谱生成单元，用于根据输入信号和音调激励频谱的增益使用音调激励频谱生成第一激励频谱;第二激励频谱生成单元，用于生成第二激励频谱 根据输入信号和非音调激励光谱的增益使用非色调激励光谱;以及输出光谱产生单元，用于使用第一激发光谱和第二激发光谱产生输出光谱。