Katee / quietnet

Simple chat program that communicates using inaudible sounds

Home Page:https://kate.io/

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Incorrect Output

ssi-anik opened this issue · comments

Yep, I've been wondering when someone would report this...

There is no error correction whatsoever and the encoding scheme is likely to improperly think another letter was meant. What happened in the first two cases here is it mistook an "h" (101011) for "a" (1011) by missing the first 1 in "h". You can try lowering the threshold for what is considered a "1" also the length of a bit although this will make transmission slower.

We were playing with this and realized that if the volume was too high, it wouldn't work. We had to lower the 1-threshold to 5000, increase the frame_length to 25, and keep the volume pretty quiet.