THANKS A LOT :D i am now checking all the links..
i said to put away the analog part for now because i wanted to focus on my =
principal problem, the USB part of the story. to answer the other qustion, =
my objective is to have a multichannel device and since i paid 99=A4 for a =
steinberg CI-1, 2 stereo inputs hi/lo impedance, phantom, yamaha mixers' co=
nverter (really good for me) and it was quite the best in quality/price rat=
io AND multichannel (i mean more than 2 mono channels) devices starts from =
200=A4 i said myself "let's try that". even if i will spend more in the end=
, i will have learnt something ;)

to explain my idea, for example:
i have 4 channels=20
ADn-> 16bit register, number n -> 16 bit multiplexer, 4 ways -> pic
a program cycle:
ADDRESS=3D00
send ADDRESS to mux address
read from mux
store into memory
send through USB (audio channel ADDRESS)
ADDRESS ++
if ADDRESS > 4, ADDRESS=3D0
repeat.

that is the basic, i think it makes sense.. or i could read from all the AD=
s first then send everything

> From: alan.b.pearce@stfc.ac.uk
> To: piclist@mit.edu
> Subject: RE: [PIC] (i guess..) Pic & USB AUDIO
> Date: Fri, 4 Feb 2011 15:01:20 +0000
>=20
> > Hi there!
> > I wonder if the tag is the most appropriate,
> > as a student (and musician) I often wonder about making my own equipmen=
t, and i have
> > been thinking for some time to build, or just to design, my own audio i=
nterface.
> > Let's forget about all the analog part for a second. After all that stu=
ff the signal
> > would be converted into digital, then written into a pic and then sent =
through the
> > UART to the pc, using usb protocol. A teacher of mine suggested to buy =
a 5$ 5.1
> > audio interface from the internet, then change the ADs, but i wanted to=
 do the most
> > i could on my own.. i mean, it can't be THIS HARD to program a pic to e=
ncode the
> > data from the AD to match the USB AUDIO 2.0 driver requirements..
> >=20
> > My problem is here: i tried to search over the net for the driver speci=
fication but
> > i'm not sure to have found it out, could anyone push me in the right di=
rection?
> >=20
> > Jacopo Monegato
>=20
> There is a discussion on the microchip forum on the Audio handling over U=
SB.
>=20
> Look at http://www.microchip.com/forums/m547546.aspx for the specific dis=
cussion I was thinking of, there may be other relevant ones in the USB sect=
ion at http://www.microchip.com/forums/f102-p2.aspx (note the link is to pa=
ge 2 where the link above came from).
> --=20
> Scanned by iCritical.
>=20
> --=20
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> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
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--=20
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