Hidden codes...

[adzy31]

I don't know whether this should be in here or the Music section, it seems more technological than musical though. Is there a program out there, or a method of using lots of different programs, that would allow me to generate some morse code, preferably at high words per minute, like 40, and convert that to some inaudible frequency, incorporate this into a song, and then have someone decode it at the other end? It seems an ambitious project, but, i was just wondering whether anyone knew how this would be done. I'm not working for any type of intelligence services, by the way :-) just doing this to pass some bored hours before College starts. Thanks for any help anyone can come up with.

[doristwonk]

There are some well known codes being used on this site, although you need to be careful of how you use them/it. A sequence of certain caracters interspersed by spelling mistakes, as markers, is the usual type.

[adzy31]

I don't know how i'd use these text based codes with the hidden morse code idea :(

[gilf]

I could help with the first bit. I'm a computer programmer so what I will do tomorrow at work is create a program which will convert a message to morse code and transfer this to bleeps. given the average number of dots or dashes in a letter we could approximate the speed needed to generate 40 words per minute. However wouldnt have a clue how to do the reverse that would be a whole different barrel of monkeys. I guess the best way would be to create a midi track based on this as you can have various channels and one could be the morse track. We then make that a high frequency. lookout for the results tomorrow on www.v60consulting.com/morseproject/

[anthomson]

Try browsing amatuer radio sites - I think encoding/decoding morse code on PC's is quite popular. Not sure about 'hiding' it though. I would guess music medium and transports are optimised for audible frequencies only - if you try to hide the signal in the high frequency band you might lose it in the noise generated by the rest of the signal.

PS Gilf can I have a job at your place - my dickensian employee actually expects me to work at work.

[gilf]

Work whats that ? What you need to do is find a job where even if your not doing work it looks like you are. My managers woudlnt have a clue what a computer program to calculate pay looked like therefore I can spend time doing one which makes funny little noises and nobody knows the difference.

[lisaj]

This is essentially how CDMA works, though obviously not with morse, but rather a whole load of bitstreams bundled together with each one AND'd with a particular code. AND the whole lot by the code of the stream you want and out pop's that stream. The beauty is that without knowing the stream's code, you can't reliably pull it out of the garbled mess.

[adzy31]

Fantastic gilf... thanks ^_^ Just trying to work out how to compile the things.... never tried to compile anything in my life, except on Linux.