resample
所属分类：数学计算
开发工具：matlab
文件大小：3KB
下载次数：2
上传日期：2017-12-04 05:44:51
上 传 者：
sh-1993
说明： 使用sinc插值以任何新速率重新采样音频
(Resample audio at any new rate using sinc interpolation)
文件列表:
resampSinc_4_12_2017.m (7856, 2017-12-04)
# resample
%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
% Resampler using bandlimited interpolation (sinc interpolation)
% Joey Hook - 4/12/2017
%
% Generates a sinusoid of specified frequency, duration, and
% sampling rate, then generates another at Q times freq and SR,
% then resamples the 2nd sinusoid back to the 1st SR.
% The 3 sinsoids are plotted, along with the Kaiser window and
% sinc table used in the interpolation.
%
% Issues:
% 1. Need ideal value for Kaiser parameter alpha to match
% output amplitude to input amplitude
% 2. Calculate Kaiser window from scratch for use outside
% MATLAB and more efficiency
% 3. Problems at end of block when input sample times exceed
% existing samples. Will be addressed in real-time
% implementation.
% 4. indexL and indexR do not go outside block as they should
% This will also be left to fix in implementation.
%~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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