I know what the basic components are (ie, resistors, ic's, etc). I know
how to solder and am really good at following diagrams. I have a good idea
of what components do, (ie, a capasitor stores a charge and a transistor
is a switch, sort of, and an ic is a collection of transistors) but
putting all of them together to actually do something is beyond me. ...
1. I want to design some type of curcit that is capable of storing a sound
bite on a some type of memory chip. about 20 seconds more or less.
2. play back of the sound bite(s). I would like to incorporate this into
(now dont laugh) a CB radio. So for example, if I flip a switch to active
the "sound bite chip" and key up the mic, the sound bite would be played
rather than someone talking into the mic. ...
from what I have seen other Truckers have in there CB radios. If you go to
a CB shop they would be more than happy to install this type of
prerecorded sound chip in your CB for you. For 45.00. And if you want a
different sound you have to get a new prerecorded chip. And yes, that
would be another 45.00. That is where I came up with the idea of something
that I could erase and rerecord over. Just trying to have a little fun
while I have to spend time away from my family.
Well, you're not going to bring it in for 45.00! You'll spend that just
on your first tools.
Then, that's an _awfully_ big project for a very first project. It's
definitely doable, but I'd recommend doing it in little chunks.
If all you want is a cookbook, connect-the-dots of an input amp,
ADC, memory, DAC, output amp, and control logic, I'd say, Lots of Luck!
I know I could "design" something that would accomplish this - actually
more like copy example circuits from data books and string them together -,
but I wouldn't want to start on it unless I had a couple of weeks to
devote to it. And I've been into electronics for 35 years. Went pro
in 1968, in the USAF. But enough about me.
I'm really sorry if it sounds like I'm saying you shouldn't even try,
but to build something like that, and "[not] care why it works",
it will be extremely difficult to get it working, even with the most
detailed of instructions.
If you wanted to approach this as a learning experience, I'd share your
enthusiasm, but from what you've said so far, it'll be much cheaper in
the long run to just buy the unit. Now, just programming the one chip,
that's a little less - actually, not that much less - involved than
the whole shebang with interface and everything, but you'd still need
the amp and ADC (which I guess you could do with the computer), and
some way of programming the chip, which you _still_ couldn't build for
less than $45.00. And Dawg knows how much in time and frustration!
Anyway, don't make any rash decisions based on my input - I really want
to read your response to me - I may be way off base as to where you're
at with all this.