wav files on windows 7 PC are very quiet

I have a computer that when playing wav files, they are very quiet, you can barely hear the sound with the speakers at max.
When I play mp3 files, they work fine.  I have went through all the audio settings, tried everything, all the settings are at max.
It's windows 7 Pro with SP1.

Any ideas how to fix this?
DanNetwork EngineerAsked:
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FOXActive Directory/Exchange EngineerCommented:
Control Panel >Sound>select your speakers>Click properties>click Enhancements tab>put a checkmark inside loudness equalization and test again.

set 'loudness equalization' ON
if you have this>set equalizer (new) to MAX
Zac HarrisSystems Administrator Commented:
What program are these sounds playing through? Also, I know you said your audio settings were set to the max but are the settings in the program you are using to play the wav files through also set high (to the max).

Something else to include...Is this a program specific sound? was the program meant for a lower OS like XP? if this is the case, the program itself may need to be updated since the way Windows processes and handles files has changed since Windows XP.
DanNetwork EngineerAuthor Commented:
That didn't work.  I turned on the loudness equalization, but I didn't have the option for set equalizer or anything like that.
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Zac HarrisSystems Administrator Commented:
Were you answering globally for both our replies or just to Foxluv?
DanNetwork EngineerAuthor Commented:
Zac, I tried both VLC and the default player that outlook uses, and they both are at the same volume.
I turned up VLC volume to max.
I'm not sure what program Outlook uses to play embeded wav VM files, but it used to work before is what the user said, it just stopped working all of a sudden the other day.

These files that come from my Exchange server or 3cx phone system used to work fine last week.

I asked if the user installed an software and she said no.
DanNetwork EngineerAuthor Commented:
ZAC, My first one was for foxluv, as your post wasn't there yet, sorry for the confusion.
Zac HarrisSystems Administrator Commented:
Hmmm.... suddenly stopped playing normally could indicate an issue with something as simple as a Windows Update that was applied to the system. Last week and early this week there were quite a few users who mentioned issues with Windows Updates in varying degrees. Look back at the update history and see if any updates were installed that mention the sound.

Of course a faster way rather than skimming through all the updates would be to just re-install the audio driver for the PC. Sound drivers are often under the "Optional" updates if that helps.
DanNetwork EngineerAuthor Commented:
I have re-installed the audio driver, but it didn't solve the issue.
I am looking through the different windows updates from the 12th and 13th that got installed to see if any of them have to do with sound, even though I doubt it because I only install critical and security updates via my WSUS server, I don't install any other updates.  
Plus, if it was a windows updates, other machines would be affected, as I have like 75 PCs I mange and so far no one else has opened a case about this issue.
DanNetwork EngineerAuthor Commented:
I suppose one thing I can do is just reinstall the OS over itself, without deleting any data, and see if that would fix it, but I don't want to have to do that if possible.   I guess I can look at a restore and see if there's a restore from end of last week as well, it would just be good to know the root cause to avoid it in the future.
FOXActive Directory/Exchange EngineerCommented:
When you installed the new driver did you uninstall the old driver through device manager or you installed right over it?  Uninstall in device manager and put a check in delete device drivers, then install your new drivers.
DanNetwork EngineerAuthor Commented:
I didn't do it that way, maybe I should try it again.
Zac HarrisSystems Administrator Commented:
Windows has a nasty habit of only replacing/updating a file if the file it encounters is missing or older. As Foxluv suggests, you should remove the driver from the system...I forgot to mention that. Sorry.
DanNetwork EngineerAuthor Commented:
I have done as you requested, still not working.
FOXActive Directory/Exchange EngineerCommented:
In Device Manager right-click the sound card, then click properties, then details, change the PROPERTY to Hardware IDs right-click  and copy the first highlighted value paste it in google and see if you are in fact installing the correct device driver for this product.  Do a search on your copied hardware Id to see if there is an updated driver for this sound card.

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DanNetwork EngineerAuthor Commented:
By the way, I know I installed the correct audio driver because I hve a dell PC, and it has a Service Tag, every Dell has a ST, and by enterting the ST, on support.dell.com it will show you the drivers associated with that machine.  There's only 1 audio driver for that machine, so it's the right driver.
 I tried what you mentioned as well, and it looks to be the right driver.
DanNetwork EngineerAuthor Commented:
my coworker went by the PC has outlook wasn't starting, did a control-alt-del and ended the working process, then restarted outlook and the sound started working

This is crazy, not sure how that would cause it to work, but now the computer started playing .wav files just fine.
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