For Verizon, you can run /Windows/SoundTester.exe from File Explorer, but you first need to tell File Explorer to show all files, otherwise you will not see Soundtester.

It seems like Verizon did pump up the sound, as most of the default settings were actually the same or louder than what people were changing theirs to earlier in this thread.

I still find my Jawbone II to be soft, and the speakerphone is pretty useless.

worked great..but how about when in a call bro? well anieway thax alot:)

My verizon omnia is too soft as well both on the speakerphone and the earpiece.  I was about to return my earpiece until I saw this thread.  Thanks for the info.

I'm a noobie to this forum (first post here) so thanks for your help.

got mines few days ago, and this doesn't seem to work. i get the verizon recording error message, could this be on certain models?

worked on mine! now i can compete with the nokia/iphone boys at work,thanks mate.

I 'd like a louder Omnia too do tell please

OK, this is going to sound completely bogus but on the i910 volume question (not the i900), I
actually think this made a difference. 

First open File Explorer, go to My Device, open Windows folder, and then find SoundTester. Open SoundTester. In Soundtest open the Menu and then open Normal. In Normal open either Handset or Headset. If you open Handset, you will see SPK(02) with a value of 0 dB. Now, we all know that if you change this value and then go back to Menu and hit Apply, the value will not hold and will not have any effect on the volume.

Now, here is where it gets weird. When you open Handset, go to Menu and hit Cancel instead of Apply. Now if you look at SPK(02), you will now see the value has changed to -6 dB. Change the -6 dB to 0 db and now go to Menu and hit Apply. Again, this value will not hold, however, if you now do a soft reset, I think you will now notice a difference in your handset volume. If this is my imagination, I apologize for wasting your time but it seems much louder to me.

Now, for the Headset, do the same thing. Go to Menu, Normal, Headset. This time you will see HP(04) = 0 dB. Again, go back to Menu annd hit Cancel. Now HP(04) = -6dB. Again, change to 0 dB, hit Menu, Apply, close and do a soft reset.

Now my headphones are so loud that I don't use them on the loudest setting--too loud.

Let me know if anybody else has the same experience. I want to know if this actually works for somebody else or if it's a result of having survived the 60's.

I have an i910, and used soundtester to adjust the sound on my omnia to many different settings.  Through many iterations I have come to find that the enclosed registry entries work well for me.  I would like some feedback from different sets of ears to see if these are the best we can do, or if their is something more optimal.