which is a free download. For relatively small matrices I recommend the use of matrix calculators likeBluebitand itsMatrix ActiveX Component. You can use this component in your SVD or LSI project to impress others. To showcase
All you have to do is multiply the spectrum with the transfer function of the filter. Low pass filters only let through components with low frequencies (for example the bass from music), while High Pass filters let only components with high frequencies through. You can also make Band Pass ...