Spatial Delay!

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cycosuicide

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If you're game for a bit of technical talk in order to get serious ear candy, let's dig in.

The Haas effect or the Precedence Effect is a Psychoacoustic Effect described by Helmut Haas as the ability of our ears to localize sounds coming from anywhere around us.

In short, our ears determine the position of a sound based on which ear perceives it first and its successive reflections (arriving within 1-35 ms from the initial sound) which, will give us the perception of depth and spaciousness. Pretty simple!

In general, we use our pan knobs to position sounds within the stereo field. Lets discuss panning briefly… If we have a sound coming out of a stereo pair of speakers at an equal volume, our ears will interpret that the sound is coming out from the middle. So, panning is not much more than the amount of volume you send to each speaker… Let’s remember that our ears depend on not only volume, but also on time and frequency differences for the localization of sounds.

Read again that you and I determine the location of a sound based on which ear perceives it first. If I play a guitar part into my left ear and play that same part but have it delayed by 5ms, for example, into my right ear, my brain perceives the sound to be coming from my left ear.

So how can we use this knowledge to create something seriously cool? What if I used this delay trick on an echo? Here is what I did. I made a 500ms mono delay(this is the echo). I then fed that into a dual delay. Each delay is set at 5ms. The output is then panned to the left and right of my headphones. For the moment, this doesn't do anything. So now I leave one of those short delays alone. I don't do anything to it at all. But the other delay, well I modulate its time with a slow LFO. I modulate its time up and down by 4ms.

Now when I play my guitar, I hear my 500ms echo move back and forth from one ear to the other. I don't need a fancy auto-pan device (I don't think there is such thing as an auto-pan pedal). Its simply the way our brain perceives sound. When I first tried this, I was amazed at how it actually works and sounds glorious.

Enough typing, let's give it a listen. You have to wear headphones/earbuds for this. This is a stereo effect, and if you listen on a laptop or smart phone you won't get the serious ear candy here.

 
I'm going to use this effect too but I prefer a wider split around 50ms
 
This reminds me of the Scholz R&D Stereo Chorus Rockmodule (and the old Eventide H910)... a little LFO modulation combined with a little delay really makes for a lush, *w i d e* stereo chorus effect.

With the SR&D Stereo Chorus, normal mode is (20ms) and long chorus mode is (40ms).
 
lll":1t96ssp5 said:
This reminds me of the Scholz R&D Stereo Chorus Rockmodule (and the old Eventide H910)... a little LFO modulation combined with a little delay really makes for a lush, *w i d e* stereo chorus effect.

With the SR&D Stereo Chorus, normal mode is (20ms) and long chorus mode is (40ms).



But THIS is not a chorus!
;)
 
italoop":1j94snt7 said:
lll":1j94snt7 said:
This reminds me of the Scholz R&D Stereo Chorus Rockmodule (and the old Eventide H910)... a little LFO modulation combined with a little delay really makes for a lush, *w i d e* stereo chorus effect.

With the SR&D Stereo Chorus, normal mode is (20ms) and long chorus mode is (40ms).



But THIS is not a chorus!
;)

Right - not so much the chorus part, but the *wide* panning part.
 
I've been deaf in one ear since birth. I can still tell where sounds are coming from around me. I mean, it's all I've known. I don't know what it's like to hear in stereo. But maybe it's simply how I've adapted. Meaning instead of having two ears that can tell where a sound is located, spatially, I have one. So if a sound is more distant "sounding" I guess I know it came from a direction opposite my good ear lol. I never really thought about it though.
 
Yes yes yes! This post is due to Italo's post about Spatial Delays. As soon as I tried it, I was in eargasm heaven and had to record it and make a quick vid.

Btw, glad to see we all stalk the same forums. ;)
 

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