Hello everyone
When I switch on my MDA III (backlight ON) it emits a high pitched noise which makes it uncomfortable to use - has anyone else experienced this? I have had it repaired 3 times with this same fault and it come back fine but after a few days use the sound reappears - Anyone else got this and is there a fix?
Cheers
Fi
Hi there,
Ive got this prob too.
So has virtually everyother Blue Angel owner I know
Its the backlight tube which causes the sounds, very annoying for the first few secs when on the phone!
Whiterat said:
Hi there,
Ive got this prob too.
So has virtually everyother Blue Angel owner I know
Its the backlight tube which causes the sounds, very annoying for the first few secs when on the phone!
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Click to collapse
It isn't a 'tube' creating the blueangel backlight, as it is in the earlier Wallaby and iPaq 3XXX series, it's low voltage LED's using a transmission layer of plastic. No inversion needed and not the cause of the buzzing sound :-(
Richard
@all,
been using p3300 for ages now and never noticed it before - there is a humming sound coming from the lcd, increases slightly when touched. (admittedly, your ear has to be straight in front of the lcd )
now, is that normal?
is that due to the rom used, or
is that due due to a defect resulting from ...?
or am i just getting oversensitive in my old days?
greetz
mines been doing that for ages now, and until you mentioned it again id grown completely used to it, now its all i hear.....cheers!
just joking mate, mine increases when i underclock it so perhaps is something to do with that as well, or some power regulation
Do you have your PDA overclocked?
That can be a "secondary" efect of it...
Cheers
Edit: The problem isn't an auto-brightness issue at all. The buzzing sounds happen when the brightness is lowered to around 15-25% (like when one puts the headset next to his or her head). 15-17% seem to be when the whining is the loudest. The issue can be reproduced by manually adjusting the brightness to those levels. Has anyone else had any similar problems?
darthjones said:
My phone is pretty much perfect save for a buzzing sound when auto-brightness is active and my screen is on. It's very noticeable when I'm making a call. I'm assuming that it's coming from the camera. In most cases, I have auto-brightness disabled. However, I am worried that the buzzing sound is a symptom of a much larger problem that I have yet to run into.
Is this a widespread problem, or did I pick up another lemon (this is my second unit as my first one had some dead pixels)? I am still within my 14 days, so if I have a bad phone, I'd like to return it while I still can. However, if this is a widespread problem, I'm OK with it since I can live with manual brightness...
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Click to collapse
mine doesn't do it
i have a humming sound whenever the screen is on. %30-33 auto.
I have the same problem between 19% adn 28%. Irritating humming/buzzing screen noise.
I noticed this last night when I had brightness set to minimum.
My bottom speaker is emitting an awful, high pitched noise. Sounds exactly like a dog whistle if I put it up to my ear. It happens when the screen is on, goes away immediately when the screen is off. It's mostly the bottom speaker, but I can hear it a bit off the earpiece too.
Someone else please test this, set your brightness to minimum, hold the bottom speaker up to your ear. Then set max brightness and see if it goes away.
Reboot did not fix it. May try a factory reset today.
Heisenberg420 said:
I noticed this last night when I had brightness set to minimum.
My bottom speaker is emitting an awful, high pitched noise. Sounds exactly like a dog whistle if I put it up to my ear. It happens when the screen is on, goes away immediately when the screen is off. It's mostly the bottom speaker, but I can hear it a bit off the earpiece too.
Someone else please test this, set your brightness to minimum, hold the bottom speaker up to your ear. Then set max brightness and see if it goes away.
Reboot did not fix it. May try a factory reset today.
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Click to collapse
I can replicate this on my Verizon HTC 10. The high pitched noise isn't loud or anything, but if I'm listening for it I can hear it if I put my ear to it (both bottom and top speakers.) The noise seems to go away when I make a phone call. I really don't consider this to be an issue... it's not noticeable unless I'm specifically trying to listen for it and put my ear up to the speaker, and only when it's at low brightness. /shrug
klarthur said:
I can replicate this on my Verizon HTC 10. The high pitched noise isn't loud or anything, but if I'm listening for it I can hear it if I put my ear to it (both bottom and top speakers.) The noise seems to go away when I make a phone call. I really don't consider this to be an issue... it's not noticeable unless I'm specifically trying to listen for it and put my ear up to the phone, and only when it's at low brightness. /shrug
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Yeah I'm torn on whether or not it's a problem for me. Right now it's driving me literally crazy lol. Whenever I'm in a quiet room, and brightness is below 30%, I hear it faintly, then I hold it up to my ear and it's a high pitched dog whistle making my brain bleed. It's making my ears ring even when not on my phone. I currently obsessing over it lol.
I'd like figure out whether or not this is present on all devices though.
Heisenberg420 said:
Yeah I'm torn on whether or not it's a problem for me. Right now it's driving me literally crazy lol. Whenever I'm in a quiet room, and brightness is below 30%, I hear it faintly, then I hold it up to my ear and it's a high pitched dog whistle making my brain bleed. It's making my ears ring even when not on my phone. I currently obsessing over it lol.
I'd like figure out whether or not this is present on all devices though.
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Understandable. You can count me in the "Yes" column. I believe this has something to do with the LCD though, possibly with the refresh rate or something? Not 100% sure, but if you google search "high pitched noise from speaker when at low brightness" there are quite a few posts about people having this issue with LCD's in particular, even some older Nexus devices. I'm also interested to see if others have this issue, but my guess is all HTC 10's will do this...
Don't have this problem I'd say your units are defective.
Sent from my HTC 10 using XDA-Developers mobile app
george241312 said:
Don't have this problem I'd say your units are defective.
Sent from my HTC 10 using XDA-Developers mobile app
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You have a US unlocked?
Heisenberg420 said:
I noticed this last night when I had brightness set to minimum.
My bottom speaker is emitting an awful, high pitched noise. Sounds exactly like a dog whistle if I put it up to my ear. It happens when the screen is on, goes away immediately when the screen is off. It's mostly the bottom speaker, but I can hear it a bit off the earpiece too.
Someone else please test this, set your brightness to minimum, hold the bottom speaker up to your ear. Then set max brightness and see if it goes away.
Reboot did not fix it. May try a factory reset today.
Click to expand...
Click to collapse
US unlocked and can't reproduce this issue.
Heisenberg420 said:
I noticed this last night when I had brightness set to minimum.
My bottom speaker is emitting an awful, high pitched noise. Sounds exactly like a dog whistle if I put it up to my ear. It happens when the screen is on, goes away immediately when the screen is off. It's mostly the bottom speaker, but I can hear it a bit off the earpiece too.
Someone else please test this, set your brightness to minimum, hold the bottom speaker up to your ear. Then set max brightness and see if it goes away.
Reboot did not fix it. May try a factory reset today.
Click to expand...
Click to collapse
I tried it and can't reproduce the same thing
Sent from my HTC6545LVW using XDA-Developers mobile app
I can't reproduce this on my unlocked US model either or at least I can't hear it. How high pitched are we talking? I can usually easily hear tones up to around 19 kHz.
Edit: So mine does make a quiet tone with the brightness between about 5-10%. I can't hear it unless I hold the bottom speaker right up to my ear so this is a non-issue for me.
It's probably the pwm for the backlight that causes this.
Just to clarify, to me this sound is difficult to hear, not loud at all and it's not a consistent noise when the brightness is low. Make sure the phone is on about 5-15% brightness and hold your ear to the bottom speaker. It's a very high pitched sound. I believe the sound is coming from the LCD, I doubt our units are defective, but it's possible I guess...
Sent from my HTC6545LVW using XDA-Developers mobile app
jaredkzr said:
I can't reproduce this on my unlocked US model either or at least I can't hear it. How high pitched are we talking? I can usually easily hear tones up to around 19 kHz.
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He described it pretty well. It's a squealing, I can hear it holding the phone about 15 inches away, faintly. It's the pitch of the sound that's irritating, very high.
If you guys know what panel (tianma / sharp) your device has, could you post that as well.
Heisenberg420 said:
He described it pretty well. It's a squealing, I can hear it holding the phone about 15 inches away, faintly. It's the pitch of the sound that's irritating, very high.
If you guys know what panel (tianma / sharp) your device has, could you post that as well.
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Click to collapse
I have a tianma screen
Sent from my HTC6545LVW using XDA-Developers mobile app
klarthur said:
I have a tianma screen
Sent from my HTC6545LVW using XDA-Developers mobile app
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Same here
Just saw this here: https://plus.google.com/109103813437959718469/posts/iPvCjjqKR2k
Looks like there was an issue with it on the 2015 Pixel too.
Google's Response:
"After having one of our techs look into this, we found that this is the normal operating sound for the screen at that brightness because of the high density of pixels in the screen. However, it is such a high-pitched sound most people can't hear it which is probably why other owners say that theirs don't make that sound either."
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Seems it's such a high frequency that not everyone can hear it... I'll bet it's the exact same situation here.
Well I just summoned another HTC 10. I had ordered two and cancelled one but they shipped it anyway so I refused delivery. Just went to my local FedEx facility and picked it up.
So I'll test that one out shortly.
most people can not hear that frequency... its the same sound older crt tvs emit... i would be able to walk into the living room and know the tv was on before i stepped in....
im betting they all do this... not everyone can hear it....
joewoo said:
most people can not hear that frequency... its the same sound older crt tvs emit... i would be able to walk into the living room and know the tv was on before i stepped in....
im betting they all do this... not everyone can hear it....
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Agree completely... I was always one of those who could hear that frequency on those old CRTs too I'll just live with it, it's not a big inconvenience to me. The only time I'll have my face close enough to hear it will be when making calls, and it doesn't make that sound when calling
joewoo said:
most people can not hear that frequency... its the same sound older crt tvs emit... i would be able to walk into the living room and know the tv was on before i stepped in....
im betting they all do this... not everyone can hear it....
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Click to collapse
Well I'm starting to believe your right, it's on all devices.
The new one that I just opened has the same thing.
I'm not sure how people aren't hearing it. All it takes is a quiet room and it's such a piercing ring. I can literally hold it 12 inches from my face, and move it from side to side and hear the sound moving with the phone.
I've noticed a few things that cause it:
- the brightness is below 30%. 30-40 it's unnoticeable but still there if you hold the screen up to your ear. Above 50 it's gone.
- the background of the screen affects the pitch. The darker the background the louder and higher the pitch is.
I can live with it through the day. When I use my phone before going to bed, or just waking up I usually use my phone at 0% brightness. It's extremely noticeable even a good distance from my face at that point.
I hear it as well... HTC 10 gold, sim free - Spain
Heisenberg420 said:
Well I'm starting to believe your right, it's on all devices.
The new one that I just opened has the same thing.
I'm not sure how people aren't hearing it. All it takes is a quiet room and it's such a piercing ring. I can literally hold it 12 inches from my face, and move it from side to side and hear the sound moving with the phone.
I've noticed a few things that cause it:
- the brightness is below 30%. 30-40 it's unnoticeable but still there if you hold the screen up to your ear. Above 50 it's gone.
- the background of the screen affects the pitch. The darker the background the louder and higher the pitch is.
I can live with it through the day. When I use my phone before going to bed, or just waking up I usually use my phone at 0% brightness. It's extremely noticeable even a good distance from my face at that point.
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I don't have any noise from mine. Unlocked variant. But I tested AFTER I took the OTA that dropped today. Maybe it's fixed? I have the tianma screen