April th, 2016

Low-pass and High-pass Filters on ZX Beeper

Achieved a new breakthrough in 1-bit technology by implementing the first ever low-pass and high-pass filters on the ZX Spectrum Beeper. Not sure what to do with that yet, so for the time being there’s just this .tap with a little test loop for you to check out. First loop is unfiltered output, followed by low-pass and finally high-pass filtered output.