[music-dsp] Morph-verb?

[Marc Lindahl]

I think the Lexicon Vortex did this....

On Wednesday, February 5, 2003, at 02:50  PM, David Olofson wrote:

> On Wednesday 05 February 2003 20.04, Moyer, Andy wrote:
>> Has anybody done any work with "morphing" reverbs?  Just an idea
>> that came to mind - I'm thinking maybe something with sort of
>> oscillating or random parameters, like the early reflections, or
>> the density of the reverb.  I'm guessing this could probably
>> acheive some very original "alien" sound effects if done at a slow,
>> but noticable modulation, maybe a "breething" effect if you have a
>> delay before the reverb,
>
> Might be hairy to do that with out "metallic" side effects at valious
> points along the morph - but OTOH, that might just sound right in
> that context.
>
>
>> and possibly even a more natural reverb if
>> the modulation/randomness is has a rapid frequency?
>
> Yes, some reverbs do this during normal operation. However, I'd think
> you have to modulate each delay unit individually for best results,
> though I'm basically guessing here. (I haven't tried modulating a
> whole reverb in unison, so I wouldn't know if it's useless. :-)
>
>
>> Also, [forgive me for my lack of understanding with this] are there
>> any sort of effects that can be applied to a reverb [or, really,
>> any other effect] signal say, half way through the process of
>> creating the reverb, that could possibly yield wildly
>> unconventional results while still being clearly (audibly) related
>> to the source?
>
> Well, most reverbs have an LPF in the feedback loop(s), to simulate
> the high frequency attenuation that most real rooms have. I suppose
> you might get some interesting effects if you throw other stuff in
> here. A pitch shifter, maybe? :-)
>
>
> //David Olofson - Programmer, Composer, Open Source Advocate
>
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