中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

29 records (took 0.02 seconds)

    METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNAL
    3.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING AUDIO SIGNAL 审中-公开
    处理音频信号的方法和装置

    公开(公告)号：US20160277865A1

    公开(公告)日：2016-09-22

    申请号：US15031275

    申请日：2014-10-22

    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY ,  WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Taegyu LEE ,  Hyunoh OH ,  Youngcheol PARK ,  Daehee YOUN ,  Jeongil SEO ,  Yongju LEE ,  Seungkwon BEACK ,  Kyeongok KANG ,  Daeyoung JANG

    IPC: H04S3/00 ,  G10L19/008

    CPC classification number: G10L19/008 ,  G10H2250/111 ,  G10H2250/145 ,  H04R3/00 ,  H04R5/033 ,  H04S3/00 ,  H04S3/002 ,  H04S3/004 ,  H04S3/008 ,  H04S2400/01 ,  H04S2420/01 ,  H04S2420/03

    Abstract: The present invention relates to a method and an apparatus for processing a signal, which are used to effectively reproduce an audio signal, and more particularly, to a method and an apparatus for processing an audio signal, which are used for implementing a filtering for input audio signals with a low computational complexity.To this end, provided are a method for processing an audio signal including: receiving an input audio signal; receiving truncated subband filter coefficients for filtering each subband signal of the input audio signal, the truncated subband filter coefficients being at least a portion of subband filter coefficients obtained from binaural room impulse response (BRIR) filter coefficients for binaural filtering of the input audio signal, the lengths of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, and the truncated subband filter coefficients being constituted by at least one FFT filter coefficient in which fast Fourier transform (FFT) by a predetermined block size in the corresponding subband has been performed; performing the fast Fourier transform of the subband signal based on a predetermined subframe size in the corresponding subband; generating a filtered subframe by multiplying the fast Fourier transformed subframe and the FFT filter coefficients; inverse fast Fourier transforming the filtered subframe; and generating a filtered subband signal by overlap-adding at least one subframe which is inverse fast Fourier transformed and an apparatus for processing an audio signal using the same.

    Abstract translation: 为此，提供了一种处理音频信号的方法，包括：接收输入音频信号; 接收用于对输入音频信号的每个子带信号进行滤波的截断的子带滤波器系数，截断的子带滤波器系数是从用于输入音频信号的双耳滤波的双耳室脉冲响应（BRIR）滤波器系数获得的子带滤波器系数的至少一部分， 基于通过至少部分地使用从相应的子带滤波器系数提取的特征信息获得的滤波器顺序信息来确定截断的子带滤波器系数的长度，并且截断的子带滤波器系数由至少一个FFT滤波器系数构成，其中快速傅里叶 已经执行了在相应子带中的预定块大小的变换（FFT）; 基于相应子带中的预定子帧大小执行子带信号的快速傅里叶变换; 通过乘以快速傅里叶变换子帧和FFT滤波器系数来产生滤波后的子帧; 对经滤波的子帧进行快速傅立叶逆变换; 以及通过重叠添加至少一个逆快速傅里叶变换的子帧和使用该子帧处理音频信号的装置来生成滤波后的子带信号。

    APPARATUS FOR GENERATING AND PLAYING OBJECT BASED AUDIO CONTENTS
    4.
    发明申请
    APPARATUS FOR GENERATING AND PLAYING OBJECT BASED AUDIO CONTENTS 审中-公开
    用于生成和播放基于目标的音频内容的设备

    公开(公告)号：US20130101122A1

    公开(公告)日：2013-04-25

    申请号：US13709475

    申请日：2012-12-10

    Applicant: Electronics and Telecommunications Research Institute

    Inventor： Jae-Hyoun YOO ,  Hwan SHIM ,  Hyun-Joo CHUNG ,  Koen-Mo SUNG ,  Jeongil SEO ,  Kyeongok KANG ,  Jin-Woo HONG ,  Chieteuk AHN

    IPC: H04R5/00

    CPC classification number: H04R5/00 ,  G10L19/008 ,  H04S7/301 ,  H04S7/305 ,  H04S7/308 ,  H04S2400/11 ,  H04S2400/15 ,  H04S2420/03 ,  H04S2420/13

    Abstract: Disclosed is an object based audio contents generating/playing apparatus. The object based audio contents generating/playing apparatus may include an object audio signal obtaining unit to obtain a plurality of object audio signals by recording a plurality of sound source signals, a recording space information obtaining unit to obtain recording space information with respect to a recording space of the plurality of sound source signals, a sound source location information obtaining unit to obtain sound location information of the plurality of sound source signals, and an encoding unit to generate object based audio contents by encoding at least one of the plurality of object audio signals, the recording space information, and the sound source location information, thereby enabling the object based audio contents to be played using at least one of a WFS scheme and a multi-channel surround scheme regardless of a reproducing environment of the audience.

    Abstract translation: 公开了一种基于对象的音频内容生成/播放装置。 基于对象的音频内容生成/播放装置可以包括通过记录多个声源信号来获得多个对象音频信号的对象音频信号获取单元，记录空间信息获取单元，用于获得关于记录的记录空间信息 多个声源信号的空间，用于获得多个声源信号的声音位置信息的声源位置信息获取单元，以及通过对多个对象音频中的至少一个进行编码来生成基于对象的音频内容的编码单元 信号，记录空间信息和声源位置信息，从而使得能够使用WFS方案和多声道环绕声方案中的至少一种来播放基于对象的音频内容，而不管观众的再现环境如何。

    AUDIO SIGNAL PROCESSING METHOD AND DEVICE
    7.
    发明申请
    AUDIO SIGNAL PROCESSING METHOD AND DEVICE 有权

    公开(公告)号：US20170188175A1

    公开(公告)日：2017-06-29

    申请号：US15300277

    申请日：2015-04-02

    Applicant: WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

    Inventor： Hyun Oh OH ,  Taegyu LEE ,  Jeongil SEO

    IPC: H04S7/00 ,  H04S3/00

    CPC classification number: H04S7/307 ,  G10L19/008 ,  H04R3/04 ,  H04R2430/03 ,  H04R2499/11 ,  H04R2499/15 ,  H04S3/008 ,  H04S7/303 ,  H04S7/306 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2420/01 ,  H04S2420/07

    Abstract: The present invention relates to a method and an apparatus for processing an audio signal, and more particularly, to a method and an apparatus for processing an audio signal, which synthesizes an object signal and a channel signal and effectively binaural-render the synthesized signal.To this end, the present invention provides a method for processing an audio signal, including: receiving an input audio signal including a multi-channel signal; receiving filter order information variably determined for each subband of a frequency domain; receiving block length information for each subband based on a fast Fourier transform length for each subband of filter coefficients for binaural filtering of the input audio signal; receiving Variable Order Filtering in Frequency-domain (VOFF) coefficients corresponding to each subband and each channel of the input audio signal per block of the corresponding subband, a total sum of lengths of the VOFF coefficients corresponding to the same subband and the same channel being determined based on the filter order information of the corresponding subband; and filtering each subband signal of the input audio signal by using the received VOFF coefficients to generate a binaural output signal and an apparatus for processing an audio signal by using the same.

Patent Agency Ranking