[sdiy] active fluctuating treble boost

[Harry Bissell Jr]

imho its not a workable idea...

The F/V conversion process is far too slow, or
the ripple generated is far too large.

The input signal would have to be a single frequency
(monophonic)

You might get a similar effect, and faster... but
converting the input high harmonics to a CV and using
that to LPF the signal.  Highs would be attenuated
more than lows... then boost everything in level from
there.

H^) harry

--- Spencer Johnson <marxspeakstruth at gmail.com> wrote:

> okay, so i have an idea for a signal processor....
> tell me what you
> guys think, and tell me of any major flaws or
> whatnot. okay, here's
> the idea:
> run an analog tone into a 9400 converter in F/V
> mode, so as to create
> a fluctuating voltage at its output. this voltage is
> then converted to
> a fluct. current and fed into an opto-isolator. then
> you'd have a
> fluctuating resistance, which could be able to
> control any res. value
> in any component, but my main idea for its use would
> be treble
> boosting. that resistance would be used to change
> the amount of treble
> boost in a basic active treble boosting circuit so
> that when the input
> received a lower frequency, the boosting would be
> greater, whereas
> when the input was a higher frequency, the boosting
> would be less
> noticeable. the purpose of the circuit would be to
> clean up the
> muddiness of lower frequency signals lacking
> intonation, without
> increasing the treble of already crisp high
> frequencies, avoiding a
> piercing tone.
> any input is welcome.
> thanks guys,
> spencer
>