Editing apparatus and editing method
    51.
    发明授权
    Editing apparatus and editing method 失效
    编辑装置和编辑方法

    公开(公告)号:US07519277B2

    公开(公告)日:2009-04-14

    申请号:US11079750

    申请日:2005-03-14

    IPC分类号: H04N5/91

    CPC分类号: G11C7/16

    摘要: An editing apparatus and method for dividing or combining a data file(s) that is segmented into blocks of a predetermined data length and recorded in a non-volatile memory. An attribute file having a predetermined length is modified so as to reflect such dividing or combining. Such attribute file is recorded in the non-volatile memory.

    摘要翻译: 一种编辑装置和方法,用于分割或组合被分割成预定数据长度的块并记录在非易失性存储器中的数据文件。 对具有预定长度的属性文件进行修改以反映这种划分或组合。 这样的属性文件被记录在非易失性存储器中。

    AUDIO PROCESSOR
    52.
    发明申请
    AUDIO PROCESSOR 失效
    音频处理器

    公开(公告)号:US20070206817A1

    公开(公告)日:2007-09-06

    申请号:US11681025

    申请日:2007-03-01

    IPC分类号: H04B3/20 H04M9/08

    CPC分类号: H04M9/082

    摘要: An audio processor of a loud speech communication system including a speaker and a microphone is provided. The audio processor includes: an adaptive filter wherein an amount of update in a learning event is set to an arbitrary value, and a filter coefficient is serially determined corresponding to the set amount of update; a semi-fixed filter adapted to an echo cancellation process of an audio input signal input from the microphone; adaptive filter assessment unit that calculates a length of an update vector based on the filter coefficient determined by the adaptive filter and a length of an update vector based on a filter coefficient set in the semi-fixed filter and that performs assessment of the filter coefficients in accordance with the update vectors; and coefficient specifying unit that sets an optimal filter coefficient among the filter coefficients into the semi-fixed filter in accordance with the result of the assessment of the filter coefficients performed by the adaptive filter assessment unit.

    摘要翻译: 提供了包括扬声器和麦克风的大声语音通信系统的音频处理器。 音频处理器包括:自适应滤波器,其中将学习事件中的更新量设置为任意值,并且根据设定的更新量对滤波器系数进行串行确定; 适用于从麦克风输入的音频输入信号的回波消除处理的半固定滤波器; 自适应滤波器评估单元,其基于由所述自适应滤波器确定的滤波器系数和基于在所述半固定滤波器中设置的滤波器系数的更新向量的长度来计算更新向量的长度,并且执行所述滤波器系数的估计 按照更新向量; 以及系数指定单元,其根据由自适应滤波器评估单元执行的滤波器系数的评估结果,将滤波器系数中的最佳滤波器系数设置为半固定滤波器。