OpenAL HRTF sometimes sounds off due the occlusion effect

[BielBdeLuna]

sometimes it sounds as if the virtual microphones lag behind the player, as the player moves around the environment. it can be heard with the EFX reverbs and without, so it's not dependant on them.

[BielBdeLuna]

it sounds sometimes like a low-pass filter, imaybe it's the occlusion hurting the HRTF?

--edit--

iI think it's the occlusion or the dobbler or the combination of bothi

--edit 2 --

it's definitively the occlusion, the doppler effecrt doesn't cause any of this, the occlusion breaks the HRTF sound image, with it off the HRTF sounds perfect.

[BielBdeLuna]

this can be heard in Quake 2 first demo, when the player throws the first grenade at the start:

if you toggle s_occlusion_strength 1 and 0 at that same moment the player is running backwards as he throws the grenade you should hear the difference.

the doppler effect doesn't make any substantial change to the HRTF sound image.

[Yamagi]

this can be heard in Quake 2 first demo, when the player throws the first grenade at the start

In what demo? In demo1.dm2 the player doesn't throw a grenade...

[BielBdeLuna]

sorry I was using yquake with the quake 2 RTX where they changed the first demo, and a grenade is tossed there

[Yamagi]

I can hear it. I wonder if this really a code problem and not a unwanted side effect of Q2s rather basic sound system providing not enough data to OpenAL for 100% correct occulusion calculations. @0lvin, what do you think?

[0lvin]

I will recheck one more time, I suppose that issue related to incorrect combination of parameters for openal processing.

Have you reproduced issue under Windows and Linux?

[Yamagi]

Only under Linux

[BielBdeLuna]

I think this is the combination of reverb and the occlusion, like if the occlusion where too great effect given the reverb and HRTF channel heavy nature, maybe is a question of switching the order the effects get to be applied?

[BielBdeLuna]

I mostly hear this "defect" when using occlusion, and walking forward,
sometimes all sounds around sound like if they where mono.
could it be that player self occludes it's own steps?

[pepelevamp]

i'm on windows and i found the doppler causes comb filtering in the environmental sounds.

the occlusion causes a hard pop when walking past bulk heads. i made a separate ticket for the occlusion one which i kinda regret after seeing this issue open here.