I recently bought an EM-ONE here in Japan and so far I am quite pleased with the device. It has a few shortcomings, but nothing too serious apart from one bug that is really annoying: When the device is turned on there is constant white and high frequency noise coming from the speaker. Even if I mute them the noise is still there and quite perceptible when the volume is tuned low. This turns out really bad when using the device's microphone as the noice gets recorded as well which puts a lot of static on the line. My question would be if there is anyone else sharing this problem (maybe on another device) and if there is anything I can do about it. Any help will be greatly appreciated!
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Hi guys,
I've found a very interesting sound effect on my O2 XDA Mini (=Magician). I've been having the phone for a few days only, but right from the very first calls I noticed that the speaker creates a very high frequency continuous beep-sound, not loud of course, but crazy high, something like the well-known side effect of the old CRT TVs. At first I thought it is produced during a conversation. Then today, I held my phone to my ears without any calls, and guess what: the beep is there. :shock: It's produced always!
I started to look around, and had a hunch that the LCD backlight can be the problem. I played a little with the backlight setting and found that I was right, the sound is poduced only when the light is set to low. It's loudest at the first notch of the light slider, and gets more and more quiet as you set the backlight higher.
Now I wonder if it's a special problem with my phone (like some bad quality filtering somewhere in the power electronics of the backlight system) or if it is the same with your devices.
Please try it and post your comments. Listen closely! And try both ears (not kidding), the sound is very quiet and very high in frequency, so your ears may not be up to the task to pick it.
Have to be honest I can't get a quite second at the moment but I'm pretty sure I've noticed this noise before as well. Another noise which can be irritating is the GSM radio module and it's intermitting buzzing (a quiet version of what you hear when unshielded speakers pick up your signal).
So basically I'm not sure but I think it's a generic issue with the backlight
Hi,
I found that too....
it's quite irritating as it looks like an old TV turned on.
I hope that won't be a problem to our ear in the future
I have a noise problem, I don't think it's quite the same as previously posted noise problems.
I get a hissinh/static noise from the phones speaker (on the back) and from headphones. It is only happening while the phone plays sound (and some seconds later). Every time I up or down the sound with the volume keys, there are noise coming out of the speaker for some seconds. Please report if you have the same issue, especially eith headphones.
I could live with the speaker-noise, it's not that big a deal.. What's worse is it is in the headphones. I have a quite low impedance set of in-ear plugs from creative (I am able to hear the hard drive spinning up in my old mp3-player, but no constant noise) Crap. I want to use the phone for music listening. Question is: software or hardware related? Using JF 1.51 ADP for the record
I hope it is hardware related - I bought mine off ebay, allthoug brand new and everything, I don't know how I would go about getting it fixed/a new one with no receipt. Shipping it back and forth to England isn't really tempting either.
It's not just you, it's piss-poor rf isolation on the audio outputs. Listening with bluetooth doesn't solve the issue either as bluetooth has its own noise.
Yeah, I have yet to listen to a decent pair of BT headsets.
So this is a known problem, and it's definitely a HW issue? The fact that it's only there when sound is played, and is also there with a headset (where shielding around connectors is not and should not be a problem at ALL) made me hope this was softwar related. Argh, what to do then? The sound quality despite this seemed prety decent, although a headache today prevents me from really listening to music and say for sure. Shame.
*Pondering refund options.*
Any chance of isolating around the connector and fixing this, if it is "airborne" caused noise, or will the noice enter the equation before the connector (cabling, sound chip)?
I will try with a relatively high impedance headset (sennheiser 555) and see if it is better there. But can't take them on the bus anyway. But a couple of Ωs could always be added somewhere along the cable and might do some good. Have to have the sound at the lowest levels with the in-ears. Maybe a software fix to lower the volume output will help? Or won't it, if RF noise is the cause?
red: I will buy this item and hope it helps. And will look into lowering the volume output when using headphones as well. Should be possible (atleast it usually is with tweaks in WinMo.)
I have similar problem with HTC Magic: forum.xda-developers.com/showthread.php?t=633035
Here is one more post regarding HTC Jade: forum.xda-developers.com/showthread.php?t=463365
HI there guys.
Brand new to this forum.
I've searched for days and I'm unable to find a solution.
I'm experiencing a crackling or a distortion on phone calls at certain volumes. I noticed it with certain pitches in peoples voices it would cause a vibration in the ear speaker and some distortion in the sound. Kind of like the speaker is being over driven or has too much power going to it. It usually goes away if I turn the volume almost all the way down, but this is obviously not a practical option since I'm not always making phone calls in a dead silent room. The speaker phone works fine. This only happens when I'm using the earpiece. Is this normal? Is it related to the camera autofocus sensor rattle? Are the sound vibrations from a person's voice enough to set off the rattle? It's really annoying as I tend to make phone calls a lot and I don't like using speaker phone or a headset. Does anyone else have this problem?
From what I can tell, it happened and was normal in the S4. (http://forum.xda-developers.com/showthread.php?t=2280930).
Please help. Im deciding if i need to return it.
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fffft said:
It's too bad that you didn't describe it in more detail.. i.e. give us steps to replicate it. A recording of the distortion would have been helpful too. I haven't noticed what you describe but it sounds like the gain or auto gain is too high and your earpiece speaker is being overdriven.
There is a gain setting in the service mode menu but first you need to distinguish an app issue or possibly damaged speaker before messing around in the hidden settings. See if you can find an audio app that will give you a wider adjustment range for your system volume and gain.,
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Thank you for the reply.
If you go into the service menu, the go into the low frequency test. At 100hz and 200 hz there is a little bit of buzz in the headset reciever unless you really push it against your face (which i assume kind of tightens the spaces in the plastic and prevents whatever vibration in the speaker is occuring).
Hmm.. the vibration is akin to as if you were speaking into some cellophane wrap; like some film (maybe for waterproofing) is covering the speaker.
Oh. It's also worth noting that I cannot replicate the issue on Skype or Viber. Those sound crystal clear.
Bump. Anyone?
Hey everyone,
My 6P seems to buzz like crazy when I play anything at max volume. Is this a defect? The speakers are still loud and clear but buzz like crazy when I'm around the last 2-3 notches of the volume slider. Obviously loud speakers can cause resonant vibrations but this seems kind of excessive and with everyone talking about how great the speaker quality is I can't help but think that some thing may be up. I'm coming from HTC One (M8) Boomsound speakers and my impression from the 6P's are that they really aren't that great.
I'm having similar issues. I notice it easily when changing ringtones or notification tones. I wonder if this a problem with a gain setting or a QA issues affecting a small number of phones. I'm on MDA89D build.
I had a buzzing speaker problem too then I looked at the EQ on my google music and for some reason it was set funny. I flattened out the EQ to take some bass out and now it doesn't buzz.
The problem actually occurred more with games rather than music. I RMA'd and things appear to be all good now.
Hi,
I've been experiencing an issue since I've had this phone for a little more than 1 month.
If I'm wearing my wired earphones (don't have Bluetooth ones) and the phone makes use of the network (as when a video or a song starts to load) I can hear a buzzing distortion sound in the background as long as the download is in progress. In fact, I have a network speed meter on the status bar and when I'm not doing anything the phone jumps from OB/s to 1kB/s every once in a while (which is normal) also resulting in an audible hissing sound in the background through the earphones.
What the hell is this? It's pretty annoying especially when a YouTube video begins to play.
Nothing here
Yup, pretty normal when poor isolation of RF is done hardware-wise. There is probably nothing software that can be done about it except for better frequency filtering on hardware/driver side.
You pretty much have to live with it; back when I still had my Axon I barely noticed it and only when I was lying in bed right before sleep.
I doubt @front firing speakers does not have it on his phone.
You have to be in a very silent environment and set the volume to really really low to be able to notice it.
The Nexus 9 tablet is also very prominent in this regard, or the Nexus 7 2013 speakers (not headphones). A variety of devices have this issue.
What you could do to confirm it is hook up and oscilloscope to your 3.5mm input jack, play a video at exactly ZERO volume and look at the frequency of the signal you got there