- 01-13-2013, 10:49 AM #1
Ugh..sad to report i've found a very odd issue with my ATT 920. After making an audible noise, say unlocking the screen, if you position the bottom of the phone right up to your ear there is a noticable buzzing/electrical sound that occurs for about 5 seconds. Admittingly, the room has to be very quite to hear the sound but it is distinct and occurs 100% of the time, I had my gf listen and she heard it as well. I first thought heard it while playing mahjong in a quite room one day, i thought maybe there was something weird with the game and began testing with other sounds and realized it occurs after every noise the phone makes i.e. unlock the phone noise. I tested with the volume at 5/30 and 30/30 and the buzzing noise was the same volume level. It's sort of like an interference noise kind of. Like if you've ever had a weird cross talk from a keyboard or mouse into your speakers. Its that sort of hum/buzzing sound but doesn't change. Always the same, about 5 seconds, and then off.
So far i can't tell that this is actually affecting anything. the speakers work as normal, all ranges of audio seem normal. It's just worrysome to hear that kind of buzzing noise because to me it means something in the hardware is not correct.
Has anyone else noticed this? Anyone want to go give it a test.
Last edited by Luke Kailburn; 01-24-2013 at 09:44 AM.
- 01-13-2013, 09:56 PM #4
Are you talking about a high pitched whine? I heard it too, but probably wouldn't have without ever reading this post. The bottom of the phone has to be inches from my ear in order to hear it. I guess there aren't many extremely quiet places I visit, so never noticed it before. It doesn't bother me, yet 😉
Sent from my RM-820_nam_att_100 using Board Express
Last edited by Jastow; 01-17-2013 at 08:48 PM.
01-15-2013, 01:39 AM #6
- 6 Posts
You're hearing the horrific outro of an uncut audio file -- in this particular case, the notification and/or "tone" on the 920.
"What the heck!?" you might say. I'll explain...
- The hiss / whine / light buzz is essentially "white noise" - a combination of extremely low-volume background noise that produces what we normally refer to as static.
- So, similar to hearing the fuzz in your noise-cancelling headphones with the volume turned up but without your music playing, you get lingering sound.
- Normally, a second or two is left at the end of any sound byte or track to aid in mixing.
- This is similar to combining film, where you have extra material to lay over top when you are cutting and pasting your final reel.
So, Nokia generated these sounds and left some room to splice them -- for example, "Nokia Message has two beeps or dings."They made it like this:
Step One: [space][space]__|*beep!*|__[space][space] = one beep is recorded with two half-second blocks of dead space on each side (dead space = white noise = what you're hearing!)
Step Two: __|*beep!*|__[space]__|*beep!*|__[space][space] <--- duplicate the bee and delete one space in between = Nokia Message = two beeps close together...
Step Three: "scrub" or "clean" the track, removing excess gaps ^^^ But they didn't delete the space at the end! Lazyyyyy. You hear the "beep" or "ding" and then the "hisssss" because they didn't crop the end of the audio file!
- What's worse? The hiss is dead space that should have been cut off by the audio engineers that Nokia employs (they have an entire team of them, actually)...
So, want to test out which ones are too long? Simply click through the various alert/notification/ringtone options with your ringer volume set anywhere around about 25-30 (as I've tested on mine). If you listen closely, as you have done with your phone, you can audibly catch the tail ends of some extremely-poorly-produced sound files as they tail away with dead space.
- Example: ---> One tone in particular that's blatantly too long "Nokia Message" --
- you'll hear *ding! *ding!* *hissssss* with that annoying end noise lasting almost 3 seconds!!
I was pretending that they did not make this mistake because, when I thought about it, I was almost embarrassed for them.... However, I have such a wide range of forgiveness for Nokia because I love my darn Lumia 920 so effin' much that I simply cannot stay mad at them. It's a love-hate-love this phone situation for me!
Sorry for the ridiculously-long post, but I figured I might as well share the info now that I had it.
Hope this helps!!
- 01-15-2013, 02:32 PM #7
Thank you for your explanation. And I sampled the Nokia Message and of course can easily see what you are saying. There is obvious dead noise at the end of the audio file. However, this is NOT the issue I am discribing. Lock yourself in a quite room and play the Nokia message again. there is about 2 seconds of dead noise on the audio file, but then there is about 7 seconds of this very low volume whine sound. The sound i am describing does not change with the volume of the phone, so it is not part of the audio file itself. Furthermore it happens even with audio sounds from games(although you'd never hear it unless the game made no other sound afterwords). I have a mahjong game that has no background music or sounds, just sounds when you tap on tiles or make a pair so this is where i first noticed it since i could tap on a tile and do nothing else that would produce other noises.
Give it another listen and let me know.
- 01-17-2013, 11:11 AM #8
I'd like to see more people test this.
I had a friend here in town with a 920 test as well and he also heard the whine. To me it sounds like there is actually some kind of constant interference bleeding over into the speaker, and is there whenever the speaker is 'powered' and the software in the phone is written to cut power to the speaker if there is not other input after the 8 seconds or so(i'll take a stop watch next time). I was paying close attention to it while i was texting. tap a letter and it sounds like the speaker turns on, then plays the keyboard sound, then has about 8 seconds of very low volume whine while the speaker is still powered, then cuts off and is silent. tap a key again and repeat.
01-24-2013, 10:12 AM #11
- 218 Posts
I have the same. If you press a power button and unlock the phone you get this noise. Also if you press power button again to turn the phone off and immediately press power again you dont need to unlock - the noise is right there.
01-26-2013, 10:32 AM #15
- 1,025 Posts
- 06-10-2013, 09:37 AM #17
06-10-2013, 09:42 AM #18
- 105 Posts
Thanks, unfortunate that it makes the buzzing, but as long as it's normal then at least there's no actual malfunctions.
I first noticed it with Angry Birds, and after that noticed it with other things including the lock button, unlocking phone, etc.
thanks for the reply Worzel!
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