https://github.com/nickgeek/wavelength

Audio networking! Wavelength provides 1000bps, packets have cool sine waveforms, and it's written in python! What are you waiting for?!
https://github.com/nickgeek/wavelength

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Audio networking! Wavelength provides 1000bps, packets have cool sine waveforms, and it's written in python! What are you waiting for?!

• Host: GitHub
• URL: https://github.com/nickgeek/wavelength
• Owner: NickGeek
• License: mpl-2.0
• Created: 2014-11-27T06:54:24.000Z (about 10 years ago)
• Default Branch: master
• Last Pushed: 2014-11-27T11:07:02.000Z (about 10 years ago)
• Last Synced: 2024-11-17T12:48:42.116Z (2 months ago)
• Language: Python
• Size: 160 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
Wavelength

==========

Audio networking! Wavelength provides transfer speeds of 1000bps, packets have cool sine waveforms, and it's written in python! What are you waiting for?!

###Usage

python3 decoder.py file.wav

###Notes

* Reads 16bit WAV files

* Data in 2 bit chunks

* Frequency decided by: 23+n. Nmin = 0, Nmax = 3

* Chunks last 1ms

* 00 = >5400

* 01 = >5000<5400

* 10 = >4000<5000

* 11 = <4000

* Create a sine wave going from 23+n to 23+n*100, (e.g. 8Hz to 800Hz), they will average out to give the above chunks.

* This is easiest created using the chirp function in audacity

* Use a amplitude of 0.1 and 1.8

###Units

* Bit = 1 binary digit

* Chunk = 2 consecutive bits (2 binary digits)

* Block = 4 consecutive chunks (8 bits, 8 binary digits)