公开(公告)号：US09183840B2

公开(公告)日：2015-11-10

申请号：US13918458

申请日：2013-06-14

Applicant: Electronics and Telecommunications Research Institute

Inventor： Seung-Jae Lee ,  Jung-Hyun Kim ,  Won-Young Yoo ,  Yong-Seok Seo ,  Sang-Kwang Lee ,  Jee-Hyun Park ,  Young-Suk Yoon ,  Young-Ho Suh

IPC: H04R29/00 ,  G10L19/018 ,  G10L25/69 ,  G06F17/30 ,  G10L25/18

CPC classification number: G10L19/018 ,  G06F17/30743 ,  G10L25/18 ,  G10L25/69

Abstract: Disclosed herein is an apparatus and method for measuring quality of audio. The apparatus includes a distorted signal generation unit, an extraction unit, a distortion level measurement unit, a distortion function generation unit, and a search and measurement unit. The distorted signal generation unit generates a plurality of distorted signals with respect to audio in compliance. The extraction unit extracts a fingerprint and AV information corresponding to the audio and fingerprints and AV information corresponding to the plurality of distorted signals. The distortion level measurement unit measures fingerprint distance differences, and arousal and valence (AV) distance differences. The distortion function generation unit generates a fingerprint distortion function and an AV distortion function. The search and measurement unit measures the quality of the audio by extracting a fingerprint and AV information from query audio and then comparing extraction results with the fingerprint distortion function or AV distortion function.

Abstract translation: 本文公开了一种用于测量音频质量的装置和方法。 该装置包括失真信号生成单元，提取单元，失真度测量单元，失真函数生成单元和搜索测量单元。 失真信号产生单元根据音频产生多个失真信号。 提取单元提取对应于音频和指纹的指纹和AV信息以及与多个失真信号相对应的AV信息。 失真度测量单元测量指纹距离差异，唤醒和价（AV）距离差异。 失真函数生成单元生成指纹失真函数和AV失真函数。 搜索和测量单元通过从查询音频提取指纹和AV信息，然后将提取结果与指纹失真功能或AV失真功能进行比较来测量音频的质量。

公开(公告)号：US09262521B2

公开(公告)日：2016-02-16

申请号：US13685632

申请日：2012-11-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung-Min Kim ,  Seung-Jae Lee ,  Jung-Hyun Kim ,  Young-Ho Suh ,  Yong-Seok Seo ,  Jee-Hyun Park ,  Sang-Kwang Lee ,  Jung-Ho Lee ,  Young-Suk Yoon ,  Won-Young Yoo

IPC: G06F17/00 ,  G06F17/30 ,  G11B27/28 ,  G10L25/87 ,  G10L25/54 ,  G10H1/00 ,  H04N21/438 ,  H04N21/439 ,  G10L25/21

CPC classification number: G06F17/3074 ,  G06F17/30775 ,  G10H1/0008 ,  G10H2210/061 ,  G10H2240/081 ,  G10L25/21 ,  G10L25/54 ,  G10L25/87 ,  G11B27/28 ,  H04N21/4384 ,  H04N21/4394

Abstract: Disclosed are an apparatus and a method for extracting a highlight section of music. The apparatus for extracting a highlight section of music in accordance with the embodiment of the present invention includes a frame divider that divides an audio file into a plurality of frames having a predetermined sample length; an average energy signal calculator that calculates a signal representing the average magnitude of audio energy for a plurality of samples belonging to each frame for each frame of the plurality of frames; and a highlight section selector that extracts a low frequency signal from the signal representing the average audio energy magnitude for each frame and determines the highlight section from frame sections including maximum points of the low frequency signal.

Abstract translation: 公开了一种用于提取音乐的高亮部分的装置和方法。 根据本发明的实施例的用于提取音乐的高亮部分的装置包括：帧分割器，其将音频文件分成具有预定样本长度的多个帧; 平均能量信号计算器，其计算表示属于所述多个帧中的每个帧的每个帧的多个样本的音频能量的平均幅度的信号; 以及高亮部分选择器，从表示每帧的平均音频能量幅度的信号中提取低频信号，并从包括低频信号的最大点的帧部分确定高亮部分。