公开(公告)号：US08879762B2

公开(公告)日：2014-11-04

申请号：US12695252

申请日：2010-01-28

申请人： In-Yong Choi

发明人： In-Yong Choi

IPC分类号： H04R5/02 ,  H04R5/00 ,  H04S7/00

CPC分类号： H04S7/00

摘要： A method and apparatus to evaluate a quality of an audio signal, in which the number of effective channels is determined for each of a reference signal of a current frame and a test signal indicative of the reference signal that has passed through an audio codec, and an audio quality evaluation score of the current frame is calculated by evaluating an audio quality of the current frame based on the determined number of effective channels for each of the reference signal and the test signal by means of a predetermined evaluator.

摘要翻译： 一种用于评估音频信号的质量的方法和装置，其中针对当前帧的参考信号和表示已经通过音频编解码器的参考信号的测试信号确定有效信道的数量，以及 通过基于用于每个参考信号和测试信号的确定的有效信道数量，通过预定的评估器来评估当前帧的音频质量来计算当前帧的音频质量评估分数。

公开(公告)号：US09804772B2

公开(公告)日：2017-10-31

申请号：US13176201

申请日：2011-07-05

申请人： Sang-Hoon Oh ,  Nam-Il Lee ,  In-Yong Choi ,  Seok-Yeong Jung

发明人： Sang-Hoon Oh ,  Nam-Il Lee ,  In-Yong Choi ,  Seok-Yeong Jung

IPC分类号： G06F3/048 ,  G06F3/0488 ,  G06F3/0482

CPC分类号： G06F3/04883 ,  G06F3/0482

摘要： A method and an apparatus for managing a menu item in a portable terminal are provided. In the method, at least one item is selected from items displayed on a screen according to a user control. An attribute of selected at least one item is determined. A new item is generated by one of dividing and merging the at least one item depending on the determined attribute.

公开(公告)号：US20090171671A1

公开(公告)日：2009-07-02

申请号：US12278033

申请日：2007-02-05

申请人： Jeong-Il Seo ,  Seung-Kwon Beack ,  In-Seon Jang ,  Kyeong-Ok Kang ,  Jin-Woo Hong ,  In-Yong Choi ,  Sang-Bae Chon ,  Koeng-Mo Sung

发明人： Jeong-Il Seo ,  Seung-Kwon Beack ,  In-Seon Jang ,  Kyeong-Ok Kang ,  Jin-Woo Hong ,  In-Yong Choi ,  Sang-Bae Chon ,  Koeng-Mo Sung

IPC分类号： G10L21/00

CPC分类号： G10L25/69 ,  G10L19/008

摘要： There is an apparatus for evaluating the audio quality of a multi-channel audio codec, including: a preprocessing unit for synthesizing binaural signals based on multi-channel audio signals transmitted through a multi-channel of a multi-channel audio reproduction system; an output variable calculator for calculating an interaural cross-correlation coefficient distortion (IACCDist) and other output variables of the binaural signals; and an artificial neural network circuit for outputting a grade of the perceived quality based on the interaural cross-correlation coefficient distortion (IACCDist) and other output variables calculated in the output variable calculator.

摘要翻译： 存在用于评估多声道音频编解码器的音频质量的装置，包括：基于通过多声道音频再现系统的多声道发送的多声道音频信号来合成双耳信号的预处理单元; 用于计算双耳信号的ural互相关系数失真（IACCDist）和其他输出变量的输出变量计算器; 以及用于基于在所述输出变量计算器中计算出的所述欧氏间相互相关系数失真（IACCDist）和其他输出变量来输出感知质量等级的人造神经网络电路。