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Windows 7: Crackling sound and System lag

27 Feb 2010   #1

Windows 7 Ultimate
Crackling sound and System lag

Hi everyone.

I am posting this as last resort. Recently i upgraded from Windows XP to Windows 7 Ultimate edition and got a problem i ve seen for the 1st time in my life.

Problem was Crackling sound that sounds like some kind of static electricity that is mixing with normal sounds. I ve searched a lot through net to see if theres any solution to this issue. What i found is that ppl have similliar problem to mine but not exactly same. Other ppl complaining about that crackling during audio playback while they are watching movies and listening music, but that is not for me...

I can normaly watch movies and listen to music, but problem occurs when i start any game on my PC. Symptoms are next...

Every time i start game (Call of duty Modern Warfare 2) sounds starts to crackle, slow down and game becomes graphicaly laggy...

Then i found another way to test if sound and system are ok...

When i start GOM player and start to rapidly press ENTER button, to go IN and OUT full screen i notice that sound starts to crackle and system to slow down making full screen to window screen so laggy that even when i stop pressing ENTER it still continues to expand and restore full screen...

Last night i cleaned a bit of PSU from dust, but ive noticed theres some on CPU cooler, GPU cooler and, PSU air intake cooler... I ve played for like 30 mins and crackling was gone, i rebooted after that and crackling was back...

This morning i did total clearing of PSU, CPU and GPU coolers nad so far is working ok...

I also monitored temperatures of mobo, gpu, cpu, hdd and their voltages and funny thing is everything is normal...

MOBO never over 33, CPU rarely over 55, Core 1 46, Core 2 46, GPU 45, and HDD round 30...

I also noticed some CPU spikes to max 55% CPU usage, very rarely 70%, then i checked processes, and while i was doing that ENTER thing with GOM, GOM was giving 50% max CPU usage, and from other processes most recent were AUDIODG.EXE and SVCHOST.EXE which spiked to 55%...

I have removed sound enchancments and still was the same after rebooting... ( untill this morning when everyting is ok).

2 or 3 times i noticed that after system startup there was like 4 beeps, but not all were rhytmic, and i cant remember was it 3 long 1 short or 3 short 1 long or something like that... But even if there was 1 beep system would be laggy and sound were crackling...

Also funny thing is that everytime when that crackling sound appears, fans become hummy and some kind of low whistleing with high pitch can be heard coming from somewhere round PSU... When this thing happened again i ve uninstalled nVidia video drivers to install newer ones ( 196.21 version ) and just after that all problems started, fans started huming etc etc all above... I rolled back to my old working drivers using safe mode and driver sweeper and was the same, i made all driver updates...

Now i am curious what may cause this problem in case that thing that is anoying comes back. I gave u all things i ve noticed from sensoring temperatures and voltages to PC case cleaning...

What i am thinking it might be some driver issue, but i dont know where to start to search...

System spec:

OS: Windows 7 Ultimate x32
CPU: Intel Core 2 Duo E 6300 1.86 GHZ
PSU: 500 W
Sound card on board...

All drivers up to date...

Best regards, SashaB

My System SpecsSystem Spec
05 Jun 2010   #2

Windows 7

I have the same problem.

Only crackles when i watch video in full screen mode and play cod4 games.

This happen after I installed the new nVida Driver.

Did you ever figure out the solution?
My System SpecsSystem Spec
06 Jun 2010   #3

Windows 7 Professional 64

Right click speaker icon in lower right corner.
Click Playback devices.
Highlight current playback device and click properties.
Properties window click advanced tab.

Default format, now this is usually where the problem lies, the usually default is Studio Quality. This is too high sampling for "most" systems. Try/test DVD or CD sampling to see if the problem persist.

This is a common fix, but is not 100% in some cases.
My System SpecsSystem Spec

28 Dec 2014   #4

windows 7 64 bits
thank you so much

even if the post is 4 years old i have the same problem on my computer... was driving me nuts.. changed mobo, sound card.. it WAS THE #$#"!$!# Nvidia driver...

my computer:

nvidia gtx650
8gbram ddr3 1900mhz
core i7 3770

i installed drivers from july 2014 and everything works now!

thank you.
My System SpecsSystem Spec

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