Distorted/muffled speaker sound

I have the same issue. My have this one game I play that I have on a iphone 3g, iphone 3gs, and an ipad. As well as my new iphone 4. And the others sound perfect but on the iphone 4 it just sounds horrible. It's all distorted and crackly. I scheduled an appointment with Apple, earliest they had was Wednesday. 😟

I just had the same issue, though I think I've resolved it - for now at least.

Basically, I was playing music aloud on my phone and it suddenly went quiet and distorted. Uh oh. I restarted my phone, no difference. Uh oh. Before I posted here sharing your issue, though, I tried one last thing: I opened up the multitasking bar, and manually closed the iPod app (hold icon until they jiggle, tap -) and everything seems to have returned to normal.. So maybe it's an issue with the saved state, or maybe I got lucky.

I was having the same issue and your tip appears to have helped clear up the problem. Weird! Thanks!

This may not be the exact same issue, but I noticed that the iphone 4 was distorting audio playback in the ipod and on pandora causing the headphone magnets to overload. In other words it was not source distortion which is common and acceptable in rock music etc.

This disturbed me enough with the dropped calls to put the iphone 4 back in the box. Im not a hater this is my 4th iphone in 3 years. But I listen to music all day on my iphone and this all I could handle.

I went out and bought a gen 1 on craigslist after living with this issue for 3 weeks. I wish I hadnt sold my 3gs but hey a nice gen 1 looks cool, and the wifi speeds are the same as the iphone 4.

Bye iPhone 4, Ill wait for the next rev.

Has anyone solved this issue. I think I have the same problem?

@Ed91
I was having the same issue, and this seemed to work for me too, if anyone else is having this issue. Very strange....