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How to position sounds?

bal464

bal464

Messages
25
Country
england
Can anyone tell me how to position sounds in the 5.1 surround soundscape?

I'm using FSX and the wav files tell me they're mostly mono but although they all play through just my front speakers in Windows Media Player they go through the correct speakers in FSX (eg engines come from the back speakers).

I can't see anything in the INI files to control positioning of the engines sounds - the xxxcone stuff seems to control where around the engines they're audible but not where the sounds actually come from.

It can't be in the MDL file because if I take out an original engine file (that's playing through the rear speakers) and replace it with some other file from avsim with the same name the file is played exclusively from the front speakers.

Really got me scratching my head so anyone who can help will earn my gratitude!!

Cheers

Ian
 
Turns out the add-on files I had were stereo which upsets the 5.1 logic somehow. I converted them to mono and they suddenly started coming from from all the correct speakers.

In case anyone else stumbles into this the aircraft.ini file contains a section called [GENERALENGINEDATA] that holds the physical position of each engine. The sound logic uses this to position the audio files in the surround soundscape. It's all in the SDK, I'm just a dufus sometimes.

Ian
 
Not sure about actually positioning sound events but in the FSX sound.cfg you can assign a direction to sounds - check it out. Example below

[COMBUSTION.1.07]
filename=xban24
flags=0
viewpoint=2
rparams=0.007000,0.667000,1.000000,1.335000
vparams=0.000000,0.000000,0.655000,0.000000,0.729000,16.000000,0.813000,80.000000,0.998000,98.400002,1.000000,98.800003,1.000000,98.800003,1.000000,98.800003
insideConeAngle=90
outsideConeAngle=360
conePitch=0.000000
coneHeading=-179.999985
outsideConeVolume=9700
full_Scale_Distance=125
link=COMBUSTION.1.08
 
Hi Brian

Thanks for the reply - it's a timely reminder for me to post what I've found since my post.

It seems the most important part of all this is to ensure the engine sounds are mono not stereo. The Aircraft.ini file contains a bunch of engine parameters which includes their individual positions and it's those parameters that FSX uses to determine where the engine sound should come from in your surround sound system.

The cone parameters in the sound.cfg file control the sound quality depending on your position relative to the engines. The cones are just that - a cone of sound coming from the engines in a certain direction and with a certain spread.

If you've ever stood near a jet that's manoevering you'll know only too well that as the engines change direction relative to you the sound changes - often from muted roar to a painful scream. That's what these cone parameters control.

All the best

Ian
 
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