A 30€ DSP Audio Filter by GI1MIC
Visit https://gi1mic.github.io/ for information on how to use his code.
This project is for installing into a Yaesu FT-817 but easily be adapted for many other radios or applications.
What does it do?
– Act as multiple DSP filters based on hi pass, lo pass, band pass or band stop (filter points can be defined in Hz within the code)
– It uses voice messages to describe which filter has been selected
– It is a USB to CAT interface
– It emulates a USB sound card for receiving rig audio on a computer
– Performs Morse to voice decode and Morse to USB serial decode
– It can speak the radio config to assist the visually
impaired (FT817 only)
Attached you can see the DSP inside my FT817 including the optional audio board.
Teensy boards and stuff by PJRC Store Audio Filter Design Tool by PJRC Store Some other nice DSP project,a digital mic preamp DSP-Filter by Sotabeams
