Archive of the former Yahoo!Groups mailing list: MOTM

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [motm] Quantizer

From: The Old Crow <oldcrow@...>
Date: 2000-03-16

On Thu, 16 Mar 2000 davevosh@... wrote:

> << Maybe an adjustable quantizer module is a job for a PIC processor...?
> >>

> beyond knowing it is a moderately powerful microcontroller type of cpu
> chip family, i wouldn`t have any idea about hacking the microcode to
> do the job. in theory, its just simple math, programmable scale for
> whatever note per octave or just scale you wanted and feed a linear
> c.v. in one end and out comes an appropriately scaled, stepped c.v..
> then, depending on cost / complexity, can it be an affordable module ?
> can it be done in a timely manner ? aren`t a couple of folks on the
> list experienced pic programmers ? best, dave v.

PICs aren't particularly powerful--they have very limited memory
resources--but, they are ∗fast∗. For dedicated apps, this speed is
everything. For something like a quantizer, a PIC should have no problem.
In fact, the tricky part of quantizing is in choosing really good A/D and
D/A subsytem parts so as to keep the error values as small as possible.