[Q] phone calls do not sound clear + faint buzzing noise during calls

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Yesterday I retired an original MyTouch 3G and picked up a T-Mobile SGH-T989. I've placed 3 long phone calls with different people and have a difficult time hearing them. The volume is good, but their voice is slightly muddled? clipped? reverbed? On every call, I can also detect a very faint electrical noise, sounds kind of like coil whine from a power supply. Frankly, compared to the HTC MyTouch (dream), it sounds terrible and find myself asking the other person "what's that" a lot.

I live north of Boston and can only get Edge inside my house. The phone is stock for now, wifi is connected to my router, gps is on, bluetooth is off.

I will go out soon where it is 4G, turn off wifi, and make a call to see if there is any difference. I suspect it will be the same. This may be a deal breaker for me which is a shame, because I love this monster phone so far (except for the lack of a notification LED).

Anyone else make out the electrical noise during calls?

This is not normal! Mine is clear on both ends.

The noise is faint but can be heard through the ear speaker only during calls. Sounds like some kind of EMI. Just tried talking on 4G with no WIFI. No difference.

Hit or miss for me. Some calls to the same number/person are crystal clear, and then the next one is a bit muffled. Overall it's good, but I never had the issue with my Nexus One.

I had this issue on my first device, was getting a low buzzing noise everytime the other person spoke. Went back to store the next day and showed them. They replaced my phone with another and now it is clear on this device. Remove the SIM card and re insert it securely and if you still have it, get it exchanged.

Thanks. I reset the sim card. Still sounds bad. Will exchange it tomorrow. Hope what I am hearing is not typical for this model.

Hm well I reset the sim too, and also pulled the battery for a bit, and the calls that were a bit muffled are now clear. Don't know if that fixed it, or it is just the line.

I exchanged the phone tonight and the replacement also has a faint but annoying buzzing noise that can be heard through the ear speaker during calls. Both phones were made in the last week of September 2011. The stripes and blobs issue is clearly more pronounced in the replacement phone and the rear camera (under identical conditions) appears to be more grainy than the first one.

Does anyone else hear a real faint high pitched buzz during a call? Try talking to someone in a completely silent room.

Might be my ears are sensitive to high pitched electrical noises. Some CRT TV's, PSU's, and LCD displays drive me nuts. I am going to exchange it again.

I am getting this issue too. I only hear the electromagnetic interference when I am not in 4g or wifi calling. I don't hear it when I am on my bluetooth or when I am using the speaker phone. I sent my original phone back last week. When I got it, I turned it on to find out the noise was still there. I called tmobile and I suggested the sim card, so she sent me off to a store to get a new sim card. Well at the store there is 4g so I didn't hear the buzzing. At home and work I have GPRS and Edge respectively, they both have the buzzing noise. So they sent me out a new phone that I just received about an hour ago and I still hear it. Would a new ROM be able to fix something like this or should I just keep sending these phones back until I get one that works?

I just warranty exchanged my GS2 for the same type of audio issues. I also had an echo so every time I spoke into the phone I could hear myself on a delay. Very annoying!