Hi Jan_Martin I've got a similar problem with my level meters, they all seem to output tones between 1000Hz and 1500Hz. I'm considering using a cheap "Voice Modulator" IC the HT8950 from Holtek on th
Hi Does somebody know if it is possible to change the pitch? It has 80Hz as well as 3100Hz bandwidth, but the pitch is ca 1000Hz and not too pleasant to listen to, would rather prefer 500Hz 73, Jan_M