Alliedassault - View Single Post

quiet · 01-27-2002, 02:29 AM

This is pure speculation until I find the truth.

The thing is with moh:aa there are no '3d sound drivers'. I am wondering if they simply did it with the sound itself so the designer recorded sounds to give off those sound cues (ricochets from such and such location) gun shots from behind are a different sound file than in front.

If that's the case it does have 3D but not in the typical implementation.

In otherwords the Head-Related Transfer Functions (HRTFs) are recorded in the actual sound files and certain files are played depending on where you are - and their sound levels adjusted accordingly - as opposed to playing a generic sound file and depending on the sound card driver to translate the HRTFs (through Sensaura, EAX, DSD3D) in order to provide 3D positioning.

It would explain why 4 speaker mode wouldn't work because it wouldn't properly translate via all 4 speakers, but 2 speaker would sort of work, and headphones would definetly work.

I'll see if there are different wav files for different sounds (front and back) .. if so it means that's how it was done (which explains why the majority of the game is tons of wav files), but if not, I'm just hearing things. =)

Or the game's sound engine is adjusting HRTFs independently of the sound card drivers - which is more likely.

[This message has been edited by quiet (edited January 27, 2002).]

[This message has been edited by quiet (edited January 27, 2002).]

	(#4)
quiet is Offline Senior Member Posts: 454 Join Date: Jan 2002	01-27-2002, 02:29 AM This is pure speculation until I find the truth. The thing is with moh:aa there are no '3d sound drivers'. I am wondering if they simply did it with the sound itself so the designer recorded sounds to give off those sound cues (ricochets from such and such location) gun shots from behind are a different sound file than in front. If that's the case it does have 3D but not in the typical implementation. In otherwords the Head-Related Transfer Functions (HRTFs) are recorded in the actual sound files and certain files are played depending on where you are - and their sound levels adjusted accordingly - as opposed to playing a generic sound file and depending on the sound card driver to translate the HRTFs (through Sensaura, EAX, DSD3D) in order to provide 3D positioning. It would explain why 4 speaker mode wouldn't work because it wouldn't properly translate via all 4 speakers, but 2 speaker would sort of work, and headphones would definetly work. I'll see if there are different wav files for different sounds (front and back) .. if so it means that's how it was done (which explains why the majority of the game is tons of wav files), but if not, I'm just hearing things. =) Or the game's sound engine is adjusting HRTFs independently of the sound card drivers - which is more likely. [This message has been edited by quiet (edited January 27, 2002).] [This message has been edited by quiet (edited January 27, 2002).]