Re: [LAU] [OT] Open Source Portable Recorder?

Ok, if there were such a project already I guess one of you would know. I also found nothing on the web so there probably is none. But it's nice to see that I am not the only one who wants this :) You all had some nice ideas and suggestions. The timemachine-style recording is one thing I would definately want to have. As to the hardware, I think the single-board computers would be a bit overkill. It would make things a bit expensive, and it's really more than is needed. I think one of the 32-bit ARM chips should have enough processing power for an audio recorder. A development board like the stellaris launchpad could be a good starting point for a prototype. It has an 80 MHz ARM CPU with floating point, a few KB of RAM, some flash storage for code, and the ADCs should be perfectly ok for audio. It's only 13 US$, and I have a couple of them here. http://www.ti.com/ww/en/launchpad/stellaris_head.html?DCMP=stellaris-launch… Obviously, for things like the timemachine recording, more RAM would have to be added. I don't know how hard that would be. Interfacing with SD cards for mass storage is relatively easy. The DSO nano quad is an open source oscilloscope with 2 analog inputs with more bandwidth than any audio recorder would need: http://www.seeedstudio.com/depot/dso-quad-4-channel-digital-storage-oscillo… It has a display, buttons and everything built in. Maybe this would be a good base, too. Mind you, I mainly wanted to know if such a thing already exists, and now I'm just throwing ideas around. Not sure how much time and effort I really want to put into this - I'm an OK programmer but I'm not too good at the more advanced electronics stuff (though I know some people who are). It would be a very cool project though, and there seems to be some demand for it :-) On Sun, 6 Jan 2013 14:57:52 +0100 Johannes Kroll <jkroll(a)lavabit.com> wrote: