Using 40 meter SSB, Max/MSP, and Websdr to build a feedback delay from Maine to the Netherlands.
A Max patch plays an audio file into the transmitter in Maine. Then, using a websdr receiver in the Netherlands, the received signal is amplified and mixed back into the audio to be retransmitted. Effectively creating a feedback delay line.
Here is an example of what it sounds like on 40 meters.
http://www.pr0jex.com/longdelayline.mp3
This is the Max patch
The audio from Websdr is routed to the input of Max by creating a multi-output device (In Audio Midi Setup) combining “Blackhole 2ch” and external headphone output (for monitoring). The audio output of Max is assigned to the transmitter SSB input.
Patch not yet available. Local version is in max teaching examples.