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Audio Lag in Rhythm Tengoku #361

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internetakias opened this issue Mar 4, 2016 · 7 comments
Open

Audio Lag in Rhythm Tengoku #361

internetakias opened this issue Mar 4, 2016 · 7 comments

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@internetakias
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Hey, I'm using the latest demul alpha on Windows 7 64 bit and I'm experiencing audio lag with Rhythm Tengoku, and with it being a rhythm game that relies on sound and precise inputs it's kinda hard to play.
I've tried lowering the sound buffer size but anything below 2048 lowers the framerate for me.
Any way this could be fixed?

@Nashismo
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Nashismo commented May 9, 2016

Mate I was suffering audio lag on all my games with Demul AND I found a fix!!

First let me tell you that I am no noob user, I am 35 and I know windows in and out, there was no configuration I didn't change and nothing worked to make this emu work correctly.

Now for the fix: For some strange reason if I use SMAA injector tool in Demul my games all work without sound distortion and even perform better than before!
It is a problem with the GPU or CPU that is not working hard enough with Demul and the way I see it, this SMAA injector forces the GPU/CPU to work as they should in the first place.

I am running:
Windows 7 64 bits, latest Demul
i5 2400 3.3GHZ, 8GB RAM, Nvidia 660ti.

You can download the SMAA tool at
http://mrhaandi.blogspot.cl/p/injectsmaa.html

Actually this SMAA actually works for me, as the FXAA within the emu never worked for me. I hope the creator of the Emu could somehow use this info because ALL MY GAMES work great now (and with good Antialising).

@p1pkin
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p1pkin commented May 9, 2016

@Nashismo you are messing with terms, term 'lag' actually means 'it have delay' however it sounds with no glitches

in your case it is speed drops (and as result bad sound) because of bad Nvidia drivers power management. there no need to use 3rd-party tools, it can be disabled in settings:
Nvidia Control Panel > Manage 3D Settings > Program Settings > Select Demul.exe > Scroll down to power management and select "Prefer Maximum Performance"

btw its not something Demul-specific, same crap also can be seen in games or other emulators, like Dolphin for example, and can be 'fixed' in the same way.

@internetakias
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Yeah, the game runs at fullspeed for me, but the audio is lagging behind a bit.

@Nashismo
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Nashismo commented May 12, 2016

I am not that stupid to not know about Maximum Performance mode. I tried that and many other things before coming up with this solution. Also I wasn't actually saying audio lag, I din't mean to say that (forgive my english) I meant audio distortion. My game can run 60fps ALL THE TIME and I still get audio distrortion. Please don't assume people are so stupid.

The only way I was able to fix it was using the SMAA injector (by accident). Same thing used to happen to me on PS1 emulators, is like the emulator fall asleep and there is no Maximum Performance mode to fix this, not even leaving my CPU at 100% all the time. It must be a BIOS problem or an Emulator problem (one or the other). But believe me, I am not the only one with this issue.

@CellRuby
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CellRuby commented Mar 5, 2017

Hi Nashismo, could you please explain how you made the SMAA injector work?
When I run Demul the gpu plugin disappear, I guess I'm putting the files in the wrong place. Yep, I'm a noob at this.

@Nashismo
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Nashismo commented Mar 5, 2017 via email

@RinMaru
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RinMaru commented Mar 6, 2017

@p1pkin Hey hope your doing alright ^^ Love Demul Ive ditched all the other emus i hope to see the next build soon

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