Re: [BOUNTY - 25 BTC] Audio/Modem-based communication library
Hi etotheipi,
Unfortunately the audio cable didn't work as expected, probably due to incorrect wiring
Due to limited available time, I won't be able to work on the Smartphone<->Smartphone version for the audio MODEM in the near future.
Would it be possible to claim the bounty for the current audio modem solution?
Thanks in advance,
Roman
Awesome! Those are very encouraging results. I am busily working on the Armory 0.92 release, but after that I will have some time to see if I can reproduce your results locally. If so, I think you deserve a bounty! I encourage anyone else subscribed to this thread to collaborate with roman.z and see if you can get his solution working and verify that it works. I pay out once I can use the solution to move a 2MB file between two laptops reliably, as long as the performance is somewhat close to what you just described.
Overachiever's goal: can you find the right cables to move data back and forth between a smartphone or tablet? How difficult would it be to demonstrate that you get sufficient performance? I like the idea of taking a tx on your phone to the safe-deposit box, plugging in a 2-way cable between the phone and computer, and letting them do their thing. Or two smartphones -- one online one offline. Granted, android dev is a little out of scope for this bounty, but if we can at least propose a feasible path to getting there and expect that its performance will be acceptable, I think this solution will be 110% complete!
Unfortunately the audio cable didn't work as expected, probably due to incorrect wiring
Due to limited available time, I won't be able to work on the Smartphone<->Smartphone version for the audio MODEM in the near future.
Would it be possible to claim the bounty for the current audio modem solution?
Thanks in advance,
Roman
Good news, every one 
I have used today a proper audio cable (instead of a headset) to connect between my PC's audio output and input, so the noise went down dramatically.
This way I was able to achieve 36kbps (after ECC) to successfully transmit 64kB
...
Using 36kpbs MODEM throughput, we can transmit 5MB = 40Mb in ~1111 seconds = 18.5 minutes.
I have used today a proper audio cable (instead of a headset) to connect between my PC's audio output and input, so the noise went down dramatically.
This way I was able to achieve 36kbps (after ECC) to successfully transmit 64kB
...
Using 36kpbs MODEM throughput, we can transmit 5MB = 40Mb in ~1111 seconds = 18.5 minutes.
Awesome! Those are very encouraging results. I am busily working on the Armory 0.92 release, but after that I will have some time to see if I can reproduce your results locally. If so, I think you deserve a bounty! I encourage anyone else subscribed to this thread to collaborate with roman.z and see if you can get his solution working and verify that it works. I pay out once I can use the solution to move a 2MB file between two laptops reliably, as long as the performance is somewhat close to what you just described.
Overachiever's goal: can you find the right cables to move data back and forth between a smartphone or tablet? How difficult would it be to demonstrate that you get sufficient performance? I like the idea of taking a tx on your phone to the safe-deposit box, plugging in a 2-way cable between the phone and computer, and letting them do their thing. Or two smartphones -- one online one offline. Granted, android dev is a little out of scope for this bounty, but if we can at least propose a feasible path to getting there and expect that its performance will be acceptable, I think this solution will be 110% complete!