一种新的音频系统参数管理方式及参数渐变算法

A NEW AUDIO SYSTEM PARAMETER STRUCTURE METHOD AND PARAMETER GRADUAL CHANGE ALGORITHM

为了避免实时音频处理系统中参数突然变化造成的噪声,提出一种新的参数管理方式及参数渐变算法。将音频系统的处理参数分为立即参数和渐变参数两部分,并详细介绍两种参数在DSP(digital signal processor)中的存储及处理方式。渐变参数的改变采用逐渐变化的方式,并可以选择多种不同的渐变方式。这种新的参数管理方式可以实现DSP参数的逐渐变化,抑制参数突变引起的噪声。

To avoid noises created by parameter abrupt changes in a real-time audio processing system,a new parameter structure method and parameter gradual change algorithm is introduced in the paper.It categorizes the audio system processing parameters to two proportions： the immediate and the gradual changing.Both are described in detail about their storage and process methods.There are a number of gradual changing modes for gradual changing parameters to choose from.The new parameter structure method can help realize the gradual changes of DSP parameters in order to suppress noises created by abrupt parameter changes.