公开(公告)号：US20070237335A1

公开(公告)日：2007-10-11

申请号：US11401547

申请日：2006-04-11

申请人： Elizabeth O'Sullivan

发明人： Elizabeth O'Sullivan

IPC分类号： H03G3/00 ,  G10H1/02

CPC分类号： H04S7/00 ,  G10H2210/281 ,  G10H2250/111 ,  G10H2250/145 ,  G10H2250/531

摘要： A method and apparatus models with a digital computer the impulse response characteristics of an acoustic system (“room” for convenience), based upon a measured impulse response signal from the acoustic system. The steps of the method include: processing the measured impulse response signal by band-limited decimation in at least one band to obtain a band-limited, decimated signal (BLD signal); calculating with a digital computer, based on said BLD signal, a model impulse response of a rational polynomial form; and finding poles and zeros of said rational polynomial. In a preferred embodiment, the rational polynomial form is further simplified by removing a set of pole/zero pairs that meet a specified set of pair criteria.

摘要翻译： 基于来自声学系统的测量的脉冲响应信号，使用数字计算机的方法和装置模拟声学系统的脉冲响应特性（“方便的房间”）。 该方法的步骤包括：通过在至少一个频带中的频带限制抽取来处理所测量的脉冲响应信号，以获得带限制抽取信号（BLD信号）; 基于所述BLD信号，用数字计算机计算有理多项式的模型脉冲响应; 并找到所述有理多项式的极点和零点。 在一个优选实施例中，有理多项式通过去除满足特定组对标准的一组极点/零对来进一步简化。