hello again.
So is it Florescent or Ever (Green)?
According to 'Bob Lazar' its a light green, and emits/amplifies gravity waves
....fruitloop
but if I can find some basic easy schematics and IC that can do the trick I think it would be fun to make my own.
Well, with any driver issue out the way.....and you're just after hardware, I'm not aware of any schematics that will do the job. But, thankfully a few IC's would do the job, probably quite well.
ADC: I can't recomment 'crystal/cirrus logic' ADC's enough. (
www.cirrus.com). They're sigma delta (so they don't require any complicated filtering, just a few caps/resistors) and they're specifically designed for audio. Simple, small, and easy to use. Only thing, cirrus ignored two of my emails, and don't seem to give out samples.
Controller: PIC have some USB2 compliant IC's out. That would take care of most of the USB stuff, packeting, transmission, etc.. You may need to configure it to send certain information for config. Also, nearly all USB2 microcontrollers have an SPI port - considering the ADC's use I2S to transfer the audio samples, its remarkably similar. In fact, I've got a PIC that can take the samples from an ADC and send it over RF, sampling at 48Khz, 24-bits. Stereo.
I am only aware of one 'one-chip' solution. There are some 'audio codecs' about, and the newer ones are USB 2.0
Essentially, these chips are used in soundcards, doing pretty much all the work. They contain, ADC's, DAC's, SPDIF interfaces...and some USB. Unfortunately, a vast majority still use USB 1.1, which franky, should be fine for recording 2 channels (USB2.0 is backward compatable). Simultanous 8+ channel recording will need USB2.
USB1.1:
http://focus.ti.com/docs/prod/folders/print/pcm2902.html
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Texas Instruments are great, they've sent me many samples in the past.
I believe philips also do codecs, possibly USB2, since they're pretty far ahead with their chips. Also, Analog.com who made nearly all of the AC'97 compliant codecs (remember those on-board sound cards). And google unveiled many 'unknown' complanies, poping up with IC's for portable audio.
Some links for your interest:
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http://www.extremetech.com/article2/0,1697,1473855,00.asp
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And finally, what ready-made products are like:
http://messe.harmony-central.com/Musikmesse03/Content/Edirol/PR/UA-1000.html
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Well, thats what 10 minutes of research can do. I know you want nice easy schematics, but, soldering surface mount isn't that hard. And with a one-chip solution, these chips don't really require many external components, its a great selling point for companies. If I have any success (when I have spare time) I'll look into it more, and hopefully knock-up a prototype.
Regards,
BuriedCode.