公开(公告)号：KR100340043B1

公开(公告)日：2002-06-12

申请号：KR1019990061165

申请日：1999-12-23

Applicant: 한국전자통신연구원

Inventor： 명현 ,  김현빈 ,  김풍민 ,  김기홍 ,  김용완

IPC: G06F3/16

Abstract: 본발명은보정된머리전달함수(HRTF)를이용한 3차원입체음향재생방법에관한것이다. 본발명은표준반경에서표준머리크기의더미헤드를이용해측정된표준머리전달함수데이터베이스로부터더미헤드의왼쪽또는오른쪽귀를기준으로한 방위각과고도각을산출하는제1단계; 상기산출된방위각과고도각을기준으로상기표준머리전달함수데이터베이스의인덱스를보정하는제2단계; 음상정위하고자하는 3차원공간상의위치를입력받아, 상기입력된위치로부터청취자의왼쪽또는오른쪽귀를기준으로한 방위각과고도각을산출하는제3단계; 상기계산되어입력된위치로부터청취자의왼쪽또는오른쪽귀를기준으로한 방위각과고도각을인덱스로하여상기보정된머리전달함수데이터베이스로부터보정된머리전달함수를획득하는제4단계; 및입력모노신호를상기획득한보정된머리전달함수와콘볼루션한후, 거리에따른반비례인수를곱해서입체음향을재생하는제5단계를포함한다. 본발명에의하면청취자의머리크기및 거리에따라보정된머리전달함수를사용함으로써청취자에게보다실감나는 3차원음향을제공할수 있다.

公开(公告)号：KR1020010057764A

公开(公告)日：2001-07-05

申请号：KR1019990061165

申请日：1999-12-23

Applicant: 한국전자통신연구원

Inventor： 명현 ,  김현빈 ,  김풍민 ,  김기홍 ,  김용완

IPC: G06F3/16

Abstract: PURPOSE: A method for reproducing a stereophonic sound is provided to offer the effect of 3-dimensional sound image fixing to a listener by correcting a standard head transfer function according to a size of the listener's head. CONSTITUTION: An azimuth angle and an altitude angle based on real left or right ear are calculated from a standard head related transfer function database(11) measured by using a standard head sized dummy head(12). An index of the standard head related transfer function database(11) is corrected on the basis of the azimuth angle and the altitude angle(13). A position in a 3-dimensional space is inputted. An azimuth angle and an altitude angle are calculated on the basis of left or right ear of a listener from the position inputted(15). The azimuth angle and the altitude angle calculated on the basis of left or right ear of the listener are indexed. A head related transfer function corrected(16,17) is obtained from the standard head related transfer function database(11) corrected. An input mono signal is convoluted with the head related transfer function obtained(18,19). After that, an inverse proportion factor is multiplied according to the distance. Therefore, a stereophonic sound is reproduced.

Abstract translation: 目的：提供一种用于再现立体声的方法，通过根据听众头部的大小校正标准的头部传递函数，向收听者提供三维声像定影的效果。 构成：根据通过使用标准头部大小的虚拟头（12）测量的标准头部相关传输函数数据库（11）计算基于实际左耳或右耳的方位角和高度角。 基于方位角和高度角校正标准头相关传递函数数据库（11）的索引（13）。 输入三维空间中的位置。 基于从输入的位置（15）的收听者的左耳或右耳来计算方位角和高度角。 按照收听者左耳或右耳计算的方位角和高度角进行索引。 从校正的标准头相关传输函数数据库（11）获得校正的头相关传递函数（16,17）。 输入单声道信号与获得的头部相关传递函数（18,19）进行卷积。 之后，根据距离乘以反比例因子。 因此，立体声被再现。

公开(公告)号：KR1020000039747A

公开(公告)日：2000-07-05

申请号：KR1019980055168

申请日：1998-12-15

Applicant: 한국전자통신연구원

Inventor： 김용완 ,  김현빈 ,  김풍민 ,  서상원 ,  김재우 ,  김기홍 ,  김현석

IPC: H04S7/00

Abstract: PURPOSE: A method for removing cross talk for a stereo sound reproduction system is provided to compose efficiently a cross talk removal device when reproducing a stereo sound through a speaker. CONSTITUTION: A method for removing cross talk for a stereo sound reproduction system comprises the following steps. A simplified single input and output delayed-inverse function is composed from a head transfer function database. A multi-input and output delayed-inverse function is composed from the single input and output delayed-inverse function. A delayed-inverse function database for location combination of various speakers is composed. The angle information and distance information between the speaker and the listener are divided. The delayed-inverse function is derived from the divided angle information and a distance information matrix is composed from the distance information. An inverse matrix of the distance information matrix is obtained. A cross talk removal device is composed by using the delayed-inverse function and the inverse matrix of the distance information matrix. The cross talk removal device transfers a stereo sound to the listener.

Abstract translation: 目的：提供一种用于消除立体声声音再现系统的串扰的方法，用于在通过扬声器再现立体声时有效地组成串扰消除装置。 构成：用于消除立体声再现系统串扰的方法包括以下步骤。 简单的单输入和输出延迟反函数由头传输函数数据库组成。 多输入和输出延迟反函数由单输入和输出延迟反函数组成。 组合了用于各种扬声器的位置组合的延迟反函数数据库。 扬声器和收听者之间的角度信息和距离信息被划分。 延迟反函数从分割角度信息导出，距离信息矩阵由距离信息组成。 获得距离信息矩阵的逆矩阵。 通过使用延迟反函数和距离信息矩阵的逆矩阵来构成串扰删除装置。 串音删除装置将立体声传送给收听者。

公开(公告)号：KR1020000037778A

公开(公告)日：2000-07-05

申请号：KR1019980052527

申请日：1998-12-02

Applicant: 한국전자통신연구원

Inventor： 김현빈 ,  김풍민 ,  서상원 ,  김재우 ,  김기홍 ,  김용완 ,  김현석

IPC: H04S3/00

Abstract: PURPOSE: A system and a method for creating and storing a stereo sound are provided to create and store a sound file in a binaural type stereo sound file by processing the sound file using only pure software. CONSTITUTION: An input module(2) is provided for converting a sound file to a wave file format. A sound editing module(4) is provided to edit the sound data inputted from the input module(2). A sound effect module(5) is provided to process the sound data inputted from the input module(2) or the sound editing module(4) to a special sound. A stereo sound module(6) is provided to create a stereo sound by receiving the sound data from the input module(2), the sound editing module(4) or the sound effect module(5). A stereo sound storing system is also provided to store the sound data to a binaural sound file(8).

Abstract translation: 目的：提供用于创建和存储立体声的系统和方法，以通过仅使用纯软件处理声音文件来创建并存储双耳立体声音频文件中的声音文件。 构成：提供一个输入模块（2），用于将声音文件转换为波形文件格式。 提供声音编辑模块（4）来编辑从输入模块（2）输入的声音数据。 提供音效模块（5），以将从输入模块（2）或声音编辑模块（4）输入的声音数据处理成特殊声音。 提供立体声模块（6），通过从输入模块（2），声音编辑模块（4）或声音效果模块（5）接收声音数据来产生立体声。 还提供立体声声音存储系统以将声音数据存储到双耳声音文件（8）。

公开(公告)号：KR1020000037594A

公开(公告)日：2000-07-05

申请号：KR1019980052221

申请日：1998-12-01

Applicant: 한국전자통신연구원

Inventor： 서상원 ,  김현빈 ,  김풍민 ,  김재우 ,  김기홍 ,  김용완 ,  김현석

IPC: H04S7/00

Abstract: PURPOSE: A method for correcting a sound phase in a personal computer is provided to process a predetermined mono audio signal to a stereographic audio signal by inputting the predetermined mono audio signal according to the predetermined position and moving information of a pseudo sound source. CONSTITUTION: A predetermined mono audio file is loaded from a disk. Then, the position of a pseudo sound source and the moving route thereof in a three dimensional space are inputted. A stereographic audio signal is processed based on the space information of the pseudo sound source. Then, the stereographic audio signal is on-line reproduced as a two-channel audio signal or the stereographic audio signal is stored in the disk as a new audio file.

Abstract translation: 目的：提供一种用于校正个人计算机中的声相的方法，通过根据预定位置和伪声源的移动信息输入预定的单声道音频信号，将预定的单音频信号处理成立体声音频信号。 构成：从磁盘加载预定的单声道音频文件。 然后，输入伪声源的位置及其在三维空间中的移动路线。 基于伪声源的空间信息来处理立体声音频信号。 然后，立体声音频信号作为双声道音频信号在线再现，或者将立体声音频信号作为新的音频文件存储在磁盘中。

公开(公告)号：KR100241348B1

公开(公告)日：2000-02-01

申请号：KR1019970026150

申请日：1997-06-20

Applicant: 한국전자통신연구원

Inventor： 강병호 ,  조맹섭 ,  김진서 ,  김풍민

IPC: H04N9/64

Abstract: 본 발명은 모니터의 실(True) 컬러 특성 추출 및 최적 재생방법에 관한 것으로서, 모니터의 계측 환경 구축 및 초기화 단계와, 상기 모니터가 측정 및 모델 적용에 적합한지를 평가하고, 모니터 평면상에서 안정된 색을 제공하는지를 테스트하는 공간적 안정성 테스트 단계와, 계측 데이터의 신뢰성을 높이기 위해 계측 오류를 측정하는 채널 독립성 테스트 단계와, 상기 모니터의 시간적 안정성을 테스트하는 시간적 안정성 테스트 단계와, 상기 각 단계별 성능이 검증된 모니터의 모델을 생성하는 모델 데이타 계측 및 모델링 단계와, 상기 단계에서 생성된 모델을 모니터에 제공된 다른 샘플에 적용시켜 최적화된 모델을 찾아내는 최적 모델 추출 단계와, 특정 모니터에 가장 최적화되고 적합한 컬러 계수를 도출하는 컬러 매개변수 제안 단계로 구성된다.