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公开(公告)号：KR100433984B1
公开(公告)日：2004-06-04
申请号：KR1020020011604
申请日：2002-03-05
Applicant: 한국전자통신연구원
IPC: G10L19/02
Abstract: PURPOSE: An apparatus and a method for encoding and decoding digital audio are provided to remarkably improve a compression ratio while maintaining the similar quality of sound. CONSTITUTION: A down-sampler(100) receives a digital audio signal for down-sampling the digital audio signal 1/n time as large as the digital audio signal. An audio encoder(200) encodes the down-sampled audio signal by using a digital audio encoding method. A spectrum modeling unit(300) receives spectrum of the input digital audio signal and the down-sampled signal for modeling a frequency band incapable of being encoded, by using a gain value in a bark band between spectrums of compressed signals. A multiplexer(400) receives spectrum compensating bit stream obtained by encoding the gain value and encoding bit stream output from the audio encoder for multiplexing the bit streams to maintain the compatibility with a digital audio encoding standard for outputting a final bit stream.
Abstract translation: 目的：提供一种用于编码和解码数字音频的设备和方法，以在保持相似的声音质量的同时显着提高压缩比。 组成：下采样器（100）接收数字音频信号，用于对数字音频信号进行1 / n倍数字音频信号的下采样。 音频编码器（200）通过使用数字音频编码方法来编码下采样的音频信号。 频谱建模单元（300）通过使用压缩信号的频谱之间的巴克频带中的增益值来接收输入数字音频信号和下采样信号的频谱以用于对不能被编码的频带进行建模。 复用器（400）接收通过对从音频编码器输出的增益值和编码比特流进行编码而获得的频谱补偿比特流，以复用比特流以保持与用于输出最终比特流的数字音频编码标准的兼容性。
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公开(公告)号：KR1020040034443A
公开(公告)日：2004-04-28
申请号：KR1020030071345
申请日：2003-10-14
Applicant: 한국전자통신연구원
IPC: H04S7/00
Abstract: PURPOSE: A method for generating and consuming a three-dimensional audio scene having a sound source of an extended spatial characteristic is provided to form effectively the three-dimensional sound by extending the spatial characteristic of a content sound source. CONSTITUTION: A generation process for generating a sound object is performed. The three-dimensional audio scene technique information including the sound source characteristic information for the sound object is generated. The sound source characteristic information includes the spatial extension information of the sound source as the intensity information and the shape information of the sound source expressed in the three-dimensional space. The spatial extension information of the sound source is expressed by an x-element, a y-element, and a z-element of three-dimensional coordinates.
Abstract translation: 目的：提供一种用于产生和消耗具有扩展空间特征的声源的三维音频场景的方法，以通过扩展内容声源的空间特性来有效形成三维声音。 构成：执行用于生成声音对象的生成处理。 产生包括声音对象的声源特性信息的三维音频场景技术信息。 声源特性信息包括作为强度信息的声源的空间扩展信息和在三维空间中表达的声源的形状信息。 声源的空间延伸信息由x元素，y元素和三维坐标的z元素表示。
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公开(公告)号：KR102243395B1
公开(公告)日：2021-04-22
申请号：KR1020130106861
申请日：2013-09-05
Applicant: 한국전자통신연구원
Abstract: 객체음, 배경음및 메타데이터가포함된하이브리드콘텐츠를부호화하는오디오부호화장치및 방법, 그리고부호화된하이브리드콘텐츠를복호화하는오디오복호화장치및 방법이개시된다. 일실시예에따른오디오부호화장치는배경음과객체음을믹싱처리하여중간채널신호를생성하는믹싱부; 상기믹싱처리에이용되는매트릭스정보를부호화하는매트릭스정보부호화부; 상기중간채널신호를부호화하는오디오부호화부; 및상기객체음의제어정보를포함하는메타데이터를부호화하는메타데이터부호화부를포함할수 있다.
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公开(公告)号：KR102226071B1
公开(公告)日：2021-03-11
申请号：KR1020190093378
申请日：2019-07-31
Applicant: 한국전자통신연구원
Abstract: 다채널오디오신호의바이노럴렌더링방법및 장치가개시된다. 바이노럴렌더링방법은바이노럴필터로부터초기반사음성분과잔향성분을추출하는단계; 상기초기반사음성분에기초하여다채널오디오신호를바이노럴렌더링함으로써스테레오오디오신호를생성하는단계; 및상기잔향성분을상기생성된스테레오신호에적용하는단계를포함할수 있다.
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公开(公告)号：KR1020210019479A
公开(公告)日：2021-02-22
申请号：KR1020210019968
申请日：2021-02-15
Applicant: 한국전자통신연구원
Abstract: 멀티미디어데이터생성장치및 방법, 멀티미디어데이터재생장치및 방법이개시된다. 멀티미디어데이터생성장치는멀티채널오디오신호의각 채널별공간정보를식별하는공간정보식별부; 및상기공간정보를포함하는멀티미디어데이터를생성하는멀티미디어데이터생성부를포함할수 있다. 멀티미디어데이터재생장치는멀티미디어데이터에포함된멀티채널오디오신호의각 채널별공간정보를분석하는공간정보분석부; 및상기공간정보에기초하여멀티미디어데이터를재생하는멀티미디어데이터재생부를포함할수 있다.
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Patent Agency Ranking
公开(公告)号：KR102198217B1
公开(公告)日：2021-01-04
申请号：KR1020180042000
申请日：2018-04-11
Applicant: 한국전자통신연구원
Abstract: 순람표에기반한스티칭영상생성장치및 방법이제공된다. 본개시의스티칭영상생성방법은복수의입력영상들을획득하는단계, 획득된입력영상들의중첩영역간시차문제가발생하는지를판단하는단계, 판단에따라소정의순람표(Look-Up Table, LUT)를업데이트하는단계및 입력영상들에대해업데이트된순람표를적용하여스티칭영상을생성하는단계를포함한다.
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公开(公告)号：KR102115358B1
公开(公告)日：2020-05-26
申请号：KR1020190051573
申请日：2019-05-02
Applicant: 한국전자통신연구원
IPC: G10L19/008 , G10L19/018 , G10L19/035
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