GP4 EAX environmental sound option enabled, engine reverb in Monaco Tunnel, no CTD. GPXPATCH use CPU ALL

GP4 EAX environmental sound option enabled, engine reverb in Monaco Tunnel

There are 2 dll's that need to be put in the GP4 main directory folder:- dsoal-aldrv.dll and dsound.dll
d/l it from here:-www.moddb.com
look for:- DSOAL - True 3D Sound for Headphones (HRTF mod) v1.4
The GP4 ingame sound option can then be set to EAX, uncheck the rest.
set Use CPU to:- "All" in gpxpatch after just enabling eax, the game should not crash to desktop. no ctd
unchecked compatibilty on gp4.exe and let it run on windows version your on. mine is windows 11.

EAX enabled videos:-
[www.youtube.com]
[www.youtube.com]
[www.youtube.com]

Game running on windows 11 at 4K res apologies for video quality as I did this with external camera
It's just to give you an idea

Install gpxpatch from here:-
[www.sdidit.nl]

Lookup and install 2001 hd tracks:-
2001 HD tracks: Silverstone | Monza | Suzuka | Monaco | Imola | A1 Ring | Hockenheim | Spa-Francorchamps [released]

The above stopped the CTD issue with Use CPU "All" in gpxpatch.exe
Again just enable EAX only in the game sound option after copying dll's mentioned above.

you can also get the latest builds of EAX from here, thanks from 3DJ:-
[github.com]



Edited 14 time(s). Last edit at 10/28/2023 05:39PM by gp4wonder.

Thanks, for me this works a treat.

Hi fongu that's great, it's a game changer, can't wait for more people to try it out

Thanks Wonder. Tried on a 20 laps ract @ Indy. It seems to work but need more time to be sure.

i've been using these tweaked dll's a while ago already in my mods.
however, to get the best experience you need an external sound blaster sound card which is compatible with Create Alchemist.

personally i'm using this device: [en.creative.com]

---

GP Files | GP Videos | Discord: Carl_gpgames#2350

.



Edited 4 time(s). Last edit at 10/22/2023 02:51PM by gp4wonder.

Hi Carl,

I did try these dll's few years ago, i vaguely remember.
but I think the dll's have been updated since then:- Nov 7th, 2022
It just brings life into GP4 which i never experienced before.

are those video's from you on what GP4 sounds like with hardware sound.
do you get ctd with all cpu's in gpxpatch with hardware EAX?



Edited 1 time(s). Last edit at 10/22/2023 02:51PM by gp4wonder.

Hi defu

typically during my first or second full race it would crash without those dll's
I have been continously running GP4 races for last 3 days and no crash
It's rock solid

Great I will test that!!!!
New GP4 secrets on board
Hope some time we can play multiplayer also on the internet.
Thanks guys!!!!



Edited 1 time(s). Last edit at 10/22/2023 08:31PM by jcgrj.

multiplayer is my thing, which timezone are you in?

MT -7.

But is it possible to play online on multiplayer mode?
As far as I know this was not implemented in GP4

best

Jose

I actually do lan races, haven't tried online

with lan you can hit 'p' key and watch an entire race with ai racing
what game does that? none

I know about the lan and love GP4 anyway.

if we implement a private lan on top of internet we can play together .
Maybe the latency too high for that.

Hi jcgrj

contact me at gp4wonder@gmail.com
will like to try that sometime

I can say without a doubt that GP4 does not crash when choosing Use CPU All in gpxpatch
when EAX is enabled ingame sound settings. woohoo

.



Edited 4 time(s). Last edit at 10/28/2023 01:06PM by gp4wonder.

gp4wonder Wrote:
-------------------------------------------------------
> multiplayer is my thing, which timezone are you in
> ?


really？how is it？i wanna see some videos.ive been told that it's impossible for a long time.
have you tried virtual lan,like tailscale?
i want to do someting about that.
(how do you made lan multiplayer possible?can csm mods run?)
thank you

i've just tried lan, well i found something interesting. If i do singleplayer race eax works
but when I lan two machines i cannot get eax to work, there's no effects like crowd, engine sounds of other cars
etc, even though eax is enabled ingame.

damn must be something with multiplayer not working with eax.
be good if we could get this to work.



Edited 3 time(s). Last edit at 10/28/2023 01:12PM by gp4wonder.

I just saw a video about multiplayer on top of internet using hamachi vpn. I will try someday.

[www.youtube.com]

This post is mainly about the EAX :- DSOAL - True 3D Sound for Headphones (HRTF mod) v1.4

i have been trying to get EAX sound effects working on lan multiplayer, still haven't cracked that one yet
been chatting to people on discord server from github to get ideas.

things i've tried:-

DSOAL support to restore DirectSound3D (3D spatial audio) and EAX (environmental reverb) #2687
[github.com]

example there's a really cool tool it monitors GP4.exe file when you load up the game
called api monitor:-
[www.rohitab.com]

I ran this and you will see screenshots uploaded as it showed where dsound.dll was being loaded from

In short EAX is enabled in the game and works when doing single player, just not on lan multiplayer



Edited 1 time(s). Last edit at 10/28/2023 01:13PM by gp4wonder.