首页>
外国专利>
Multi-rate digital filter for audio sample-rate conversion
Multi-rate digital filter for audio sample-rate conversion
展开▼
机译:多速率数字滤波器,用于音频采样率转换
展开▼
页面导航
摘要
著录项
相似文献
摘要
A method for providing a sample-rate conversion (“SRC”) filter on an input stream of sampled data provided at a first rate, to produce an output stream of data at a second rate different from the first rate. The input stream of sampled data is operated on with a first low-order interpolation filter routine to produce a first stream of intermediate data. The first stream of intermediate data is operated on with a first simplified interpolation filter routine, having a substantially small number of operations to calculate the coefficients thereof, to produce a second stream of intermediate data. The second stream of intermediate data is operated on with a first decimating filter routine to produce the output stream of data.
展开▼