Haas Effect Auto-pan ?
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- KVRist
- Topic Starter
- 114 posts since 26 Apr, 2005
"Also known as the precedence effect.
After hearing a signal, the ears will suppress any subsequent signals (such as an echo or reverberation) for about 40 milliseconds; assuming that these later signals are quieter than the original signal.
It is believed that we use time delay to locate the source of a signal (the source is closer to the first ear to hear it). The Haas effect also refers to this phenomena."
Time delay=Phase difference, Am I right?
After hearing a signal, the ears will suppress any subsequent signals (such as an echo or reverberation) for about 40 milliseconds; assuming that these later signals are quieter than the original signal.
It is believed that we use time delay to locate the source of a signal (the source is closer to the first ear to hear it). The Haas effect also refers to this phenomena."
Time delay=Phase difference, Am I right?
Last edited by ~BURNY~ on Tue Nov 08, 2005 1:46 pm, edited 1 time in total.
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- KVRAF
- 7217 posts since 21 Aug, 2004 from Trondheim, Norway
You can't use a plugin to make this effect.
It's easiest to think of it as the effect that fools you at the movies:
If a sound reaches your ear from one source first, then the same sound hitting your ear within (oh I don't remember accurate figures...) 10-20 ms be perceived as coming from the first source too, almost no matter how loud it is. So what they do is make sure that the MAIN speakers along the side walls, blasting speech and other sounds at you at high levels are delayed according to how far you're sitting from the screen, while the center speaker doesn't have to be that loud. As long as the sound from the center speakers behind the screen hits you first, you'll THINK that the sound coming from the side speakers actually comes from the screen. So you're being fooled by the Haas effect (well, it's actually your brain fooling you) into thinking that sound that comes from right beside you is coming from the front of the movie theatre.
Now go make THAT in SE...
edited: you can of course make a plugin, but you need a multi speaker setup and accurate adjustments according to distance from premier source and lots of actual room dimension math...
It's easiest to think of it as the effect that fools you at the movies:
If a sound reaches your ear from one source first, then the same sound hitting your ear within (oh I don't remember accurate figures...) 10-20 ms be perceived as coming from the first source too, almost no matter how loud it is. So what they do is make sure that the MAIN speakers along the side walls, blasting speech and other sounds at you at high levels are delayed according to how far you're sitting from the screen, while the center speaker doesn't have to be that loud. As long as the sound from the center speakers behind the screen hits you first, you'll THINK that the sound coming from the side speakers actually comes from the screen. So you're being fooled by the Haas effect (well, it's actually your brain fooling you) into thinking that sound that comes from right beside you is coming from the front of the movie theatre.
Now go make THAT in SE...
edited: you can of course make a plugin, but you need a multi speaker setup and accurate adjustments according to distance from premier source and lots of actual room dimension math...
Rakkervoksen
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- KVRist
- Topic Starter
- 114 posts since 26 Apr, 2005
I don't get it. You can use (and I do) the hass effect in a simple stereo field. Create one signal in your sequencer, duplicate, pan full right-left, slide one of the side by 1.26ms, then you locate the signal in the opposite side (assuming your speakers are placed properly).Hovmod wrote:You can't use a plugin to make this effect.
Now, that would be interesting to have this delay automated.
Last edited by ~BURNY~ on Tue Nov 08, 2005 2:02 pm, edited 1 time in total.
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- KVRian
- 1482 posts since 26 Jun, 2002 from London, UK
Is this what you want?:
Stereo Simulator - Haas delay and comb filtering
http://mda.smartelectronix.com/
Stereo Simulator - Haas delay and comb filtering
http://mda.smartelectronix.com/
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- KVRAF
- 7217 posts since 21 Aug, 2004 from Trondheim, Norway
OK, I get it. You have the full signal in both sides, but a little delay will trick you into ignoring one of them. OK, I suppose that can be thought of as Haas-related... All you need is a delay, then. 
I don't know of any plug that does that.
I can think of ways to do this in eXT without anything but a delay plug, though. With automation and everything...
I don't know of any plug that does that.I can think of ways to do this in eXT without anything but a delay plug, though. With automation and everything...
Last edited by Hovmod on Tue Nov 08, 2005 2:05 pm, edited 1 time in total.
Rakkervoksen
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- KVRist
- 190 posts since 28 Nov, 2003
Any customizeable delay should allow you to give one channel the 0.18m(?) / 300 m/s = 0.6 ms delay (= around 25 samples) between the left and right ears for a sound coming directly to the side. Hmm, actually, I guess that's perhaps a big head, dunno, the exact figure. Anyway, that won't take into account the shape of the head or the ear, but it'll give you your precedence effect.