Pokemon Platinum sound doesn't work

I've been playing pokemon platinum on my no$gba but for some reason I can't hear anything. Anyone know why?

Do you have the sound disabled in the emulation settings? And what version of no$gba are you using?

My sound is enabled and I'm using 2.6a. I think it's the newest version, right?

Maybe your speaker is broken?
or there's a changes in your sound setting..etc

Check in Emulation Setup.

Speakers aren't broken :P . The setup looks ok too, Digital Stereo and high (44Hz).
Maybe it's the rom?

On what OS is this? Are you using the no$zoomer addon?

I'm using Windows XP and no, I'm not using no$zoomer since I don't know what it is.

Are you able to exit after a battle w/ a pokemon?

Yes. Sorry if I haven't mentioned this but the game so far is working fine without any bugs, except for no audio.

Okay, do the other games have sound when you play them?Any Pokemon DS game will either not work or crash if sound is disabled in no$gba's control panel, that's why I asked about it.

Yes, sound worked perfectly on the other games. I just got a new monitor though and I have a feeling that might be the reason why the audio isn't working. But I know the speakers work because I play music all the time.

Has it worked before?

I downloaded the rom after I got the new monitor.

Try redownloading 2.6a. https://www.romulation.org/forum/index.php?topic=1462.0

Year re-download it. It sounds like a faulty download to me.