ups - upsampling signal analysis. Demonstrate 11025/22050/44100 to 88200 upsampling by displaying the interpolated waveform and spectrum. Upsampling techniques include slab3d's legacy half-sample method (44.1k to 88.2k) and two zero-stuff lowpass methods (interp(), Kaiser window). upslp.m focuses on lowpass filter design. This function focuses on the signal. The following parameters can be changed in the code: R - upsample factor, selects the sound source sample rate bSnd - play sound flag, 1 or 0 yy,fs - source signal and sample rate (optional, see wavread() in code) See also: upslp.m, upstest.m