首页>
外国专利>
Apparatus for extracting envelope data from an input waveform signal and for approximating the extracted envelope data
Apparatus for extracting envelope data from an input waveform signal and for approximating the extracted envelope data
展开▼
机译:用于从输入波形信号中提取包络数据并近似提取的包络数据的设备
展开▼
页面导航
摘要
著录项
相似文献
摘要
An envelope extracting circuit extracts an envelope from the waveform sampled by a musical tone sampling circuit, and stores the envelope data into a memory. An envelope approximating circuit approximates the envelope data as stored in the memory by the function data such as linear or exponential function data. The original envelope is approximated by a limited number of function waveforms whose characteristics change at switching points.
展开▼