Is there an easy way to upgrade this to use an anti-aliasing filter? Maybe a polyphase filter bank based on a kaizer windowed sinc function?
The difficulty there is that you are convolving at every sample with a sub-filter of size M where M is likely bigger than 10 or something. For linear interpolation, M is only 2.
Is there an easy way to upgrade this to use an anti-aliasing filter? Maybe a polyphase filter bank based on a kaizer windowed sinc function?
The difficulty there is that you are convolving at every sample with a sub-filter of size M where M is likely bigger than 10 or something. For linear interpolation, M is only 2.