QRQ CW over Google DUO - LIVE demo - 60 wpm QRQcw Keyboard + paddles & Straight Key

[Chuck aa0hw]

testing GOOGLE DUO's ability to send CW over the internet, and finding the best settings to keep GOOGLE DUO from degrading the CW AUDIO TONES from its internal noise filtering, AGC and echo cancellation engines... (to stop Google Duo from doing that, a very tiny volume of low freq sine wave was applied(7.83 hz) and then the CW was also sent at a very low volume(-50 db) ...on the receive side, it was re-amplified to a final volume of about -6 db) https://duo.google.com/about/ a special mono pulseaudio sink and source were built via terminal to connect the CW keyboard and keyer audio output to the GOOGLE DUO input... and the GOOGLE DUO audio output to the sound card's speakers

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qrq@qrq:~$ pactl load-module module-jack-source channels=1 client_name=GoogleDuoInput 9

qrq@qrq:~$ pactl load-module module-jack-sink channels=1 client_name=GoogleDuoOutput 10 *****************************************************************

CW KEYING APPs and filters from RECRI KEYER's SDR APPs https://github.com/recri/keyer