[music-dsp] Stereo widening a reverb
Lubomir I. Ivanov
neolit123 at gmail.com
Sun Jun 7 13:06:23 EDT 2009
The dry signal seems to have its 'side' peaking around -63dBFS.
The wet signal on the other hand, has quite healthy 'side' peaking
around -16dBFS. I believe this is the result of some interesting L / R
distribution of the taps from the algorithm.
I don't see why the M / S splitter code (post-reverb) wouldn't work here.
Here is an example of the 'wet' signal flow:
---[ reverb ] -- [ mod ] -- [ tone ] -- [m / s] --[ +] [dry / wet sum]
[mod] - a post reverb modulation (delay based fx such as chorus) can ensure
that stereo is always acheived, if the reverb
does not deal well with mono inputs.
[tone eq] - can be bass / treble control or a hp / lp chain.
[m / s] - controls the width of the stereo-image (check 'sgain' variable in
my previous message)
----- Original Message -----
From: "contact" <contact at quikquak.com>
> Thanks for all the ideas guys.
> O.K. here's my FX tail of a tambourine hit:
> As you can hear, I would like to keep the current stereo image, but it
> would be great to allow the user to widen the sound.
> The idea of swapping frequency bands between channels to make them unique
> is interesting, but I feel it would colour each channel differently - I
> will give it a try with subtle notch/peak filters though.
> Decorrelation appears to be the keyword I was looking for, I will look
> into your suggestions on this.
> Thanks again,
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