[Openal] Specifics on Spatialization?

[Matthew Tata]

Hi,  thanks Jason.

This is a really unfortunate situation.  There are a number of  
neuroscience labs that study human auditory mechanisms such as  
auditory attention and scene analysis that would be thrilled to use  
OpenAL to present free-field sounds.  For example, we are hoping to  
study Attention Deficit Disorder in a virtual classroom.  We need  
first to establish some legitimacy for using the OpenAL environment as  
this hasn't been done in my field before.  This is impossible if I  
cannot describe at least the first principles of sound localization  
that are implemented by the audio hardware and OpenAL.  I would have  
to seek out another option.

Regards,

Matt



--
Matthew Tata, Ph.D.
Assistant Professor
The University of Lethbridge
4401 University Drive
Lethbridge, AB T1J 3M4
ph. (403) 394-3994
fax (403) 329-2775

matthew.tata at uleth.ca



On Apr 24, 2008, at 12:33 PM, Jason Daly wrote:

> Matthew Tata wrote:
>> Hi,
>>
>> I'm using OpenAL to create auditory environments for research in an  
>> auditory perception lab.  I would like to learn more about  
>> precisely how the basic (i.e. without using EFX) spatialization of  
>> sound is accomplished (i.e. which localization cues are rendered?   
>> Phase lag? Arrival time? Intensity?).  In particular, is there a  
>> published source that I could cite in upcoming research papers?
>
> Hi, Matt,
>
>
> I'm guessing you're going to be disappointed.  I've not heard about  
> any publications about the open-source OpenAL implementations  
> (OpenAL-Soft, the current leading software implementation is pretty  
> new).  At the same time, I don't think Creative has published much  
> about the details of their native hardware implementation either.   
> There are several documents at http://developer.creative.com that  
> you can look at, though.  Maybe you'll find what you need there.
>
> The OpenAL specification is at http://www.openal.org , but it  
> doesn't sound like you're looking for that kind of information.
>
> --"J"
>