Hi peeps,
I had an idea on the airplane today. I am sitting there wishing my headset would cancel the noise instead of deaden the noise. When I realized that my Android's microphone could listen to the noise and send negative sound waves to the earphones resulting in noise cancellation. Can someone build this application?
There should be a range control to control what type of noise i canceled and a control that would allow more or less cancellation. And of course the volume to the headset should still work. Would be nice if movies and audio files could also be played.
Also, don't attempt to make money on this idea because I am claiming this idea for the open source community.
I was actually thinking about this the other day. I cant really see much of a reason the normal mic couldnt be used to cancel ambient noise
Great idea, can't imagine the mic being high enough quality for this to be effective.
I think using the handsfree mic would be a better option as the phone spends most of its time in your pocket.
mercianary said:
Great idea, can't imagine the mic being high enough quality for this to be effective.
I think using the handsfree mic would be a better option as the phone spends most of its time in your pocket.
Click to expand...
Click to collapse
Im not sure about others but my phone is basically always in my hand. I text like crazy and rarely have time to put it away
mercianary said:
Great idea, can't imagine the mic being high enough quality for this to be effective.
I think using the handsfree mic would be a better option as the phone spends most of its time in your pocket.
Click to expand...
Click to collapse
Not sure about the mic quality until someone tries.
My earphones don't have a mic and it wouldn't be to much trouble to leave it out of the pocket when using the noise canceling feature. Could also be done so the phone mic only cancels the noise it hears to and the boom mic would still work normally. So the person on the other end would hear less noise.
I need someone to write the program?
No developers wanna try? I'll be a tester.
Noise cancelling wouldn't be that easy, the delay of capturing, processing and creating the cancellation sound stream would make the sound cancelling ineffective. Have a look on wikipedia for "Active Noise Control".
Such a feature would be damn amazing though. I hope someone might be able to prove me wrong.
NeoAcheron said:
Noise cancelling wouldn't be that easy, the delay of capturing, processing and creating the cancellation sound stream would make the sound cancelling ineffective. Have a look on wikipedia for "Active Noise Control".
Such a feature would be damn amazing though. I hope someone might be able to prove me wrong.
Click to expand...
Click to collapse
I would think the delay would be very small and not noticeable, but maybe I am wrong?
Instead of active noise cancelling for all sounds, some sounds are predictable once sampled. The hum of an airplane for example doesn't really change that much. Woulnt someone be able to sample a ~5 second clip and then process that, and repeat it?
Sent from a touch tone tele-phone.
bivio said:
Instead of active noise cancelling for all sounds, some sounds are predictable once sampled. The hum of an airplane for example doesn't really change that much. Woulnt someone be able to sample a ~5 second clip and then process that, and repeat it?
Sent from a touch tone tele-phone.
Click to expand...
Click to collapse
Yeah maybe you could have a noise canceling app or something that you run and it listens with the mic and makes a sample to use while you play your music or whatever, then just listens for changes, loud noises, etc to actively cancel rather than constantly listening and using everything.
Sent from my SCH-I500 using Tapatalk
Maybe that could be the difference between a paid and free app.
Free = just cancels out bacground noise
Paid = cancels out background noise and "impact sounds"
Sent from a touch tone tele-phone.
As previously stated, i doubt active noise cancelling would really be that effective due to many reasons, mic quality, latency issues, etc.
As for pre-recorded noise cancelling, there's probably a reason it hasn't been done yet. It's probably either incredibly hard to do, or incredibly ineffective.
...although, i'd love to be proven wrong
Yeah, this is just too precise a task to do with anything but real-time electronics. A typical noise cancelling setup uses an inverting op-amp that sends an inverted signal at the exact time that it is generated. Any latency at all (anything above a few nanoseconds) would cause an echo effect that would be worse than the noise. There's just no way a microprocessor could sample the sound, analyse it, and generate an inverted signal in software that would be anywhere near fast enough.
As for eliminating random noise based on some pre-sampled or randomly generated noise (white, pink, etc.), we have that already. It's called treble.
Gene Poole said:
There's just no way a microprocessor could sample the sound, analyse it, and generate an inverted signal in software that would be anywhere near fast enough.
Click to expand...
Click to collapse
I don't think you need to analyse anything just invert the signal and feed back out. But I do understand your point. These processors are doing millions of operations a second so I would hope just maybe it is possible? Maybe the sound processing chip has a built-in invert function? This is just my humble opinion and if you are in fact a person that does this for a living I submit to your wisdom.
there is an app called sound canceller that does this.
however, it seems not to work very well supposedly because of the API having a delay to playback
There seem to be some serious misconception about Noise Cancelling here. So listen to Gene Pool, he knows what he's talking about. Please read up on your wave physics and NC details:
http://en.wikipedia.org/wiki/Noise_cancelling
http://en.wikipedia.org/wiki/Noise-cancelling_headphones
Gene Poole said:
... A typical noise cancelling setup uses an inverting op-amp that sends an inverted signal at the exact time that it is generated. Any latency at all (anything above a few nanoseconds) would cause an echo effect that would be worse than the noise.
Click to expand...
Click to collapse
I almost agree, apart from that your measure is about 6 orders of magnitude (10^6) off! At 1000 Hz, it should be enough with a delay that is slightly less than double that frequency for a 180 degree phase shift. I.e. ~1 ms (millisecond).
sonwon said:
I don't think you need to analyze anything just invert the signal and feed back out.
Click to expand...
Click to collapse
That's right, and this make the electronics very simple, so yeah, it's probably easier to just buy yourself a pair of noise cancelling head/ear phones. (Why not ALL head/ear-phones doesn't already have built in NC, is beyond me. But I guess its a big difference between "descent" and "good" NC...)
xd4d3v said:
there is an app called sound canceller that does this. however, it seems not to work very well supposedly because of the API having a delay to playback
Click to expand...
Click to collapse
Like I said above, you just need to make sure your App is running with higher priority than everything else, to minimize the latency. I suppose putting the phone in "Airplane Mode" would help... But ANYTHING running on your phone would create latency, as anyone running MIDI keyboard software on a PC know all about, where a latency of 40 ms is already annoying and very noticeable. While it is nearly impossible to obtain latencies less than 10 ms on a normal operational PC without special low latency HW.
Here are some interesting sound apps:
https://market.android.com/details?id=org.liberty.android.noisecanceller
https://market.android.com/details?id=com.idroidbot.acousticsfilter
https://market.android.com/details?id=com.idroidbot.ispectral
(I have not tried any of these, so I can't really recommend them.)
On the last note. Most phones already have built in NC HW, so if you can figure out how to use that, you would probably have something very interesting going. For example see my post on the noise-cancellation problem on the Samsung Galaxy S2.
http://forum.xda-developers.com/showthread.php?t=1384756
E:V:A said:
That's right, and this make the electronics very simple, so yeah, it's probably easier to just buy yourself a pair of noise cancelling head/ear phones. (Why not ALL head/ear-phones doesn't already have built in NC, is beyond me. But I guess its a big difference between "descent" and "good" NC...)
Click to expand...
Click to collapse
That, and NC is only "decent" at most anyway. It's good to listen to music and such in public transports but absolute crap to use when you're in a quiet room at home. I wouldn't want NC technology to be implemented on "audiophile grade" headphones (audiophile jokes apart).
Has anyone tried any of the apps that E:V:A listed? If so, how did they work?
If this helps, my Galaxy Note cancels noise during calls, and it is done with the onboard mic itself obviously.
Regarding how good is it: I was on a railway station with trains arriving and departing, passengers moving around with trolleys and public announcements in loud volume when my friend called and he thought I'm in my apartment. I made him listen to the noise but he could hear nothing.
This happens all the time!
(also, the friend v.akhilverma here, purchased note himself)
Noise cancellation is far more complicated than just inverting an input and summing it with the output. If it were that simple then there would have been low cost noise cancellation headphones a very long time ago.
That being said, we live in an era of mega-powerful DSPs everywhere. Your phone's ARM processor is even powerful enough to do the DSP necessary for simplistic noise cancellation. I am writing a noise cancellation app right now and should be done with it in a few weeks. I will post a link here when done.
By some rough initial performance metrics it should be completely feasible to run a software noise cancellation algorithm with a 12 tap IIR filter and a minimal RLS equalizer. I've already written the C code to do the noise cancellation, and I just need to port it to NDK and find a way to have it run on the phone when audio is playing (and not when audio is not playing).
I'll post a link here when it is working.
Related
Hi,
Does anyone know a way to tweak a system file so that Inspire's volume is higher?
I personally find its stock volume rather low, and I want to increase it.
I downloaded Zedge. It is a free app with nice louder ringtones.
Hope this helps!
I'm wanting to up the volume system-wide. But, thanks for the info anyway
Yea, I tested a movie and sling player last night. The media volume was all the way up and it was quite.
I went from iPhone 4 (nice and louad) to Atrix 4g (nice and loud) to Inspire 4g (too quiet).
I am loving the Inspire but the sound volume and battery life are definitely the 2 big downsides of it. Still a winner over the Atrix any day though.
I personally don't have issues with the battery. I've removed all extra stuff. Even before removing them, I was happy with its battery.
It can't be that hard to change the system volume. It's done in every smartphone and OS before. Hopefully, some developer notices this thread and help us out.
goldentequila said:
I personally don't have issues with the battery. I've removed all extra stuff. Even before removing them, I was happy with its battery.
It can't be that hard to change the system volume. It's done in every smartphone and OS before. Hopefully, some developer notices this thread and help us out.
Click to expand...
Click to collapse
+1
I'm half deaf. Need a louder phone please.
same here, the phone volume is too low. Maybe if can acces service codes? I did it on my previous Samsung phone.
Hi, all.
So, I've been doing some digging around, and looks like there are 2 possibilities.
One is to modify the system files manually (which would be very complicated), but I personally prefer this method rather than having to install extra stuff. However, this method is not available to us unless some very smart person shares the method with us.
Two, which seems to be the only viable option at the moment, is DSP Manager. As far as I understand, it used to be available through ROM Manager, but it is no longer there. I saw a thread that said the author was not releasing it anymore because most MOD developers were now including it in their ROMs from the beginning.
So, if we can find a way to install DSP Manager, we may be able to tweak the max speaker volume. But, that's as far as I could find. I'd need someone smarter to look into this.
Hi,
An update and a new idea.
First, DSP Manager doesn't work on Inspire 4G, so don't bother.
Second,
Here's a new idea I have about the low volume sound fix. I just read a comment from HTC employee who said, "The front speaker is for phone calls and the rear speaker is for everything else."
In other words, if we can find a way to keep the front speaker enabled all the time, we should be able to get more sound. I don't know much about what kind of coding is involved in routing sounds from each speaker, but I wonder if this would be an easier hack than trying to increase the entire system volume, which may still feel low volume for as long as we can't get any sound out of the front speaker.
Maybe someone smart can add to this possibility?
#1! I like to use voice recordings as scheduled reminders, and the playback volume out of the rear speaker is way too low.
I did notice the low volume on a movie i downloaded but you never can tell with those sorts of things. Overall the sounds is incredible even through the speakers with (SRS) and dolby mobile.
Could use something to ++output level.
Id like to see an app to change audio volume levels while recording video.
(ive only had the phone a couple days i returned my samsung Cap upgrade for the 4g, forgive me if there is such an app out there)
How often do you go to watch an awesome looking concert video and the sound is trash? It would make for some beautiful recordings i think. I have yet to test this one, but the Captivate could not record decent sound at all in loud environment.
I personally have come to believe that it is really not that the "volume" is low but rather a "wrong" speaker is being used. I mean, if the main speaker is on the back facing away from us, of course we don't hear much sound. If you flip the phone while playing music or video, you'll notice that the sound is actually loud enough. So, if we can enable the front speaker for normal use, I really think that it'll be just fine.
about every HTC phone has a quiet speaker. but cyanogen typically always includes the audio boost add-on. so i'd just wait for cyanogen 7 to include it, and your troubles will be solved.
well, even if the volume is boosted, as long as the sound is coming out of the rear speaker, if you place your phone on its back on a table or something, the sound will still suffer. It makes more sense to find a way to enable the front speaker.
Most of all phone have a rear facing speaker. But some phone are loud and some are not..
Sent from my Desire HD using XDA App
goldentequila said:
well, even if the volume is boosted, as long as the sound is coming out of the rear speaker, if you place your phone on its back on a table or something, the sound will still suffer. It makes more sense to find a way to enable the front speaker.
Click to expand...
Click to collapse
+1 this would be quite useful!
kwin_captivate said:
Most of all phone have a rear facing speaker. But some phone are loud and some are not..
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
No, they don't lol. (you may be right if you are talking about specific brand or series, but certainly not "most of all phones").
I just came across something that may be relevant to the audio routing, but I'm not smart enough to figure them out. If anybody wants to take a look at it, it would be great:
http://developer.android.com/reference/android/media/AudioManager.html
There are several lines there that talk about Routing.
GT
This may sound ridiculous but works!
Hi, all.
I just came up with a very simple workaround for "only when you are watching a video or something."
Now, you're gonna probably laugh, but trust me. It really works.
Just play any video, and hold your phone as if you are scooping water. The key is the left hand. When you cup your left hand around the rear speaker, it creates a echoing chamber that redirect all sound toward you. You'll be able to hear the sound much better.
GT
For those looking to crank a bit more volume out of the stock setup, here is an easy way, that requires no additional apps or rooting (some apps claim to work without root, but other than Volume + they are a mixed bag, with varying degrees of performance. Some plain just don't work.
Start Google Play Music App. Begin playing something you know well. Choose the menu from the top right (3 stacked blocks), and select Equalizer. Either drop the selection down to "custom" or just start raising the bands. Raise them most or all the way to the top. A "bigger" sound can be achieved with a classic "V shape (boosting the low and high frequencies, and leaving the center, 1000hz at or below midway)
Oh, then hit the "On" switch in top left corner. You will be AMAZED at the difference in sound, if you toggle it off and on a bit while playing music.
This is technically not the loudest, that can be achieved by pegging all bands to the top, but the mid-frequencies tend to sound "tinny" or "Like a small or cheap speaker" to most folks ears. By reducing it, and boosting the bottom and top frequencies you get a nicely boosted sound, though somewhat colored (an audiophile is not likely to be wowed by this type of spectrum boost, but, depending on the source material most folks like this, as it's comparable to what a "loudness" button does, and with the Infinities VERY small speakers. Yes there are 2 in there, and they are stereo, though how Asus expected to get ANY separation or any type of "sound stage" through a 1.5" x .5 " grill remains a mystery, even if they did apply some delay, echo or reverb, which I do not believe they did.
Some swear by Volume+ and I had good experiences with it on my Prime, but when something in my setup caused both Volume+. Musicfx (the built in Equalizer I just described tuning) and settings to crash every time I used it, I decided to see what I could do without it. I am quite happy wiith the boost that musicfx provides
speakers problem
Hi.
I have a problem with my speakes, from few days. I don't know if was app that change the sound because now the sound is like an old radio. I changed the equalizer, but nothing happened.
Could you help me? Anyone have the same problem?
spaker off
dnoguera said:
Hi.
I have a problem with my speakes, from few days. I don't know if it was app that change the sound because now the sound is like an old radio. I changed the equalizer, but nothing happened.
Could you help me? Anyone have the same problem?
Click to expand...
Click to collapse
Hi, I discovered today that the problem was one speaker defected. At the end of the day this speaker off. Now my music is in mono.
Anyone knows how to turn on again this speaker, any solution??
dnoguera said:
Hi, I discovered today that the problem was one speaker defected. At the end of the day this speaker off. Now my music is in mono.
Anyone knows how to turn on again this speaker, any solution??
Click to expand...
Click to collapse
I have a feeling that you aren't speaking of the Asus TF700T Infinity.
Are you having a problem with plug-in speakers or bluetooth speakers?
The Infinity has but one single speaker.
Is the speaker inside the Infinity working?
one of my speakers turn off
Thats OK said:
Ive a feel that you aren't speaking of the Asus TF700T Infinity.
Are you having a problem with plug-in speakers or bluetooth speakers?
The Infinity has but one single speaker.
Is the speaker inside the Infinity working?
Click to expand...
Click to collapse
Hi
Yes I'm talking about TF700T infinity
No problem with the plug in.
The TF700T has two speakers in the same place. One of them turn off.
I know that because my music sound in mono insted stereo.
dnoguera said:
Hi
Yes I'm talking about TF700T infinity
No problem with the plug in.
The TF700T has two speakers in the same place. One of them turn off.
I know that because my music sound in mono insted stereo.
Click to expand...
Click to collapse
Sorry,
Don't know what to tell you.
Sounds like a manufacturing defect.
Apologies to the OP for the thread hijack...
Thats OK said:
Sorry,
Don't know what to tell you.
Sounds like a manufacturing defect.
Apologies for the thread hijack Mr. SmartAs$Phone...
Click to expand...
Click to collapse
That's right buddy!
Any solution?
Doesn't work globally (for me at least)
There's only one problem, from what I can see this only boosts sound via the app itself or perhaps music. I fired up a game to test this and the levels were the same as before.
The global solutions is to use the app: equilizer and do the same thing (I raise all sliders to the top). I used this on my HTC until I found a way to get volume+ to work on that.
Volume+ however, isn't compatible with JB but in any case there is a limit to how much you SHOULD risk bumping up your volume. I already get a little distortion using equilizer on the louder audio files I have, the limitation is going to be the speakers installed which can be damaged.
Unfortunately as with so many Android devices sound quality isn't a priority with manufacturers which amazes me particularly on both the HTC (targeted to audio users with a phone barely adequate in stand alone volume level / quality) and the TF700 which is a flagship tablet with price to match.
louiscar said:
There's only one problem, from what I can see this only boosts sound via the app itself or perhaps music. I fired up a game to test this and the levels were the same as before.
The global solutions is to use the app: equilizer and do the same thing (I raise all sliders to the top). I used this on my HTC until I found a way to get volume+ to work on that.
Volume+ however, isn't compatible with JB but in any case there is a limit to how much you SHOULD risk bumping up your volume. I already get a little distortion using equilizer on the louder audio files I have, the limitation is going to be the speakers installed which can be damaged.
Unfortunately as with so many Android devices sound quality isn't a priority with manufacturers which amazes me particularly on both the HTC (targeted to audio users with a phone barely adequate in stand alone volume level / quality) and the TF700 which is a flagship tablet with price to match.
Click to expand...
Click to collapse
Oki doki
Thanks buddy!
You're welcome...or thank you again!
SmartAs$Phone said:
For those looking to crank a bit more volume impossible. stock setup, here is an easy way, that requires no additional apps or rooting (some apps claim to work without root, but other than Volume + they. tommixed bag, with varying degBluetooth
erformance. Some plain just don't work.
Start Google Play Music App. Begin playing something you know well. Choose the menu from the top right (3 stacked blocks), and select Equalizer. Either drop the selection down to "custom" or just start raising the bands. Raise them most or all the way to the top. A "bigger" sound can be achieved with a classic "V shape (boosting the low and high frequencies, and leaving the center, 1000hz at or below midway)
Oh, then hit the "On" switch in top left corner. You will be AMAZED at the difference in sound, if you toggle it off and on a bit while playing music.
This is technically not the loudest, that can be achieved by pegging all bands to the top, but the mid-frequencies tend to sound "tinny" or "Like a small or cheap speaker" to most folks ears. By reducing it, and boosting the bottom and top frequencies you get a nicely boosted sound, though somewhat colored (an audiophile is not likely to be wowed by this type of spectrum boost, but, depending on the source material most folks like this, as it's comparable to what a "loudness" button does, and with the Infinities VERY small speakers. Yes there are 2 in there, and they are stereo, though how Asus expected to get ANY separation or any type of "sound stage" through a 1.5" x .5 " grill remains a mystery, even if they did apply some delay, echo or reverb, which I do not believe they did.
Some swear by Volume+ and I had good experiences with it on my Prime, but when something in my setup caused both Volume+. Musicfx (the built in Equalizer I just described tuning) and settings to crash every time I used it, I decided to see what I could do without it. I am quite happy wiith the boost that musicfx provides
Click to expand...
Click to collapse
Trying to respond to this using the Infinity and Dolphin browser is almost impossible. No hitting spacebar twice to end a sentence. Messes everything up big time!! It has a real hard time dealing with the code i guess. Might be a good time to try another browser.
Does anyone have white noise/static feedback issues with the audio? Its easier to notice when I use in-ear earbuds, but if I place my ears next to the speakers I can hear it as well. I'm not sure how to describe it but it doesn't distort the noise, its almost like a layer or white noise.
It only happens when the tablet is in use, someways to easily make it occur is by pressing apps/status bar/unlock screen but after a few seconds it goes away. However when I'm listening to music the white noise is always there, especially noticeable in soft/low instrumental music. Is this normal, does this happen to anyone else?
I already sent in one of my tablets for repairs only to have it sent back saying it was fixed when it wasn't. Then I had to send it back again for a replacement, and now this new tablet has the same issue. After all this I'm not sure if this is just normal or am i just that unlucky.
Please can anyone tell me if they have any noticeable audio issues so i know if i need to return this tablet again.
I had an issue before that the speaker would crackle in YouTube. But I think that was a software issue. Whatever you described does not sound normal to me. I don't notice any kind of white noise during normal use.
Sent from my SPH-D710 using xda premium
Ray_jai said:
Does anyone have white noise/static feedback issues with the audio?
Click to expand...
Click to collapse
No. Not from the speakers, over BT, or via a 3.5MM connection. And I have a pretty decent set of headphones that would definitely pick-up any distortion. The fact your experiencing it with all audio out makes it seem like s/w. It's not unusual to hear reports of the occasional 3.5MM jack being bad but most of the other audio related h/w is part of the circuit board. Try doing a factory reset. If it's gone after that it's something s/w or app related.
BarryH_GEG said:
No. Not from the speakers, over BT, or via a 3.5MM connection. And I have a pretty decent set of headphones that would definitely pick-up any distortion. The fact your experiencing it with all audio out makes it seem like s/w. It's not unusual to hear reports of the occasional 3.5MM jack being bad but most of the other audio related h/w is part of the circuit board. Try doing a factory reset. If it's gone after that it's something s/w or app related.
Click to expand...
Click to collapse
I did a factory reset and it the audio issue is still visible. :/ does this mean i need to exchange my tablet again?
Ray_jai said:
I did a factory reset and it the audio issue is still visible. :/ does this mean i need to exchange my tablet again?
Click to expand...
Click to collapse
Yep. It sounds like a h/w problem.
Can you guys try these two tests below and see if you hear it? Wear earbuds, preferably in-ear earbuds as it seems to pick it up a lot clearer, and be in a silent room when doing this.
Method 1
Turn the tablet on and have it on the unlock screen, wear the earbuds and make sure not to do anything, it should be silent. Proceed to unlock the screen and see if you hear any audible white noise in the background, after a few seconds you should hear a very low but audible click. After that click the white noise disappears.
Method 2
Have the tablet unlocked, and have your earbuds on. Make sure you don't do anything for a few seconds due to the nature of this test. After that proceed to expand the notification bar (lower right corner). After it expands see if you hear any audible white noise, after a few seconds there should be a click and the white noise disappears.
Those methods are the best and easiest way to explain how I replicated the noise. I've come to believe this is a hardware issue and a design flaw in the tablet because all the note 10.1 floor models at my local best buys also have this issue.
Ray_jai said:
Does anyone have white noise/static feedback issues with the audio? Its easier to notice when I use in-ear earbuds, but if I place my ears next to the speakers I can hear it as well. I'm not sure how to describe it but it doesn't distort the noise, its almost like a layer or white noise.
It only happens when the tablet is in use, someways to easily make it occur is by pressing apps/status bar/unlock screen but after a few seconds it goes away. However when I'm listening to music the white noise is always there, especially noticeable in soft/low instrumental music. Is this normal, does this happen to anyone else?
I already sent in one of my tablets for repairs only to have it sent back saying it was fixed when it wasn't. Then I had to send it back again for a replacement, and now this new tablet has the same issue. After all this I'm not sure if this is just normal or am i just that unlucky.
Please can anyone tell me if they have any noticeable audio issues so i know if i need to return this tablet again.
Click to expand...
Click to collapse
YES! I posted something about this, with STATIC in the title, but received no responses. I get a squeaky kind of static, most evident with earbuds. I'm using Shure and they're awesome, so I don't think it's them. I'm going to try another pair, just to isolate the issue. But I hear it during videos and music. During videos, if there's no sound at a particular point in the video, I don't hear it, but as soon as someone speaks, it's there right along with the audio, in sync with it.
It's REALLY annoying, as it makes listening to soft, quiet music as I fall asleep pretty impossible.
loribuono said:
YES! I posted something about this, with STATIC in the title, but received no responses. I get a squeaky kind of static, most evident with earbuds. I'm using Shure and they're awesome, so I don't think it's them. I'm going to try another pair, just to isolate the issue. But I hear it during videos and music. During videos, if there's no sound at a particular point in the video, I don't hear it, but as soon as someone speaks, it's there right along with the audio, in sync with it.
It's REALLY annoying, as it makes listening to soft, quiet music as I fall asleep pretty impossible.
Click to expand...
Click to collapse
I'm glad someone else hears this, can you try the 2 methods I listed in the post before yours? I want to see if the white noise is the same one I'm hearing.
i got surface pro on the first day morning. and I found this microphone problem hours ago when I first make a Skype phone call with my friend.
My friend told me that there is very loud background noise. So I make some tests with several recorder app in different room and tried to unplug power . And the noise is not caused by fan. The background noise is big enough to be noticed (very big in some sense) and sound like electronic noise. Like electromagnetic interference.
So I wonder if you guys have the same problem? or I guess I need to replace for a new one.... I always get bad luck on electronic stuff...
Could anyone try it out? thank you.
2haoxiaoyi said:
Could anyone try it out? thank you.
Click to expand...
Click to collapse
Record the sound, post a clip. Frankly, I doubt unusable background noise pickup by the mic would be acceptable, so it's not at all likely all of them do this.
For kicks, did you crank up the mic boost or levels? Perhaps you just need to lower them...
I am having the same issues, lots of backround noise.... I am going to mess around with the mic levels when I am in a quiet location, and see how It goes. I'll post back soon.
When I tried to record an audionote in (the full version of) OneNote, I noticed that there was a LOT of background noise, like the mic levels had been turned up way too much. Turns out that was exactly the case: by default, I had been set to a 24dB gain boost! Silly Microsoft.
Setting gain to 0dB and microphone level to 75 worked just fine for me.
I wonder what HTC thought about advertising noice cancellation, it really does nothing in my opinion..
I also tried using "fake" noise (white noise videos, hair-dryer) and switched between on and off, no difference!
Is my U Sonic broken or is it really that bad?
Also the "ear analyze" - really a thing or does it just equalize treble?
I'd say it works like 15% it's nothing special especially after talking on QC35s or MDR-1000x
celtaV said:
I wonder what HTC thought about advertising noice cancellation, it really does nothing in my opinion..
I also tried using "fake" noise (white noise videos, hair-dryer) and switched between on and off, no difference!
Is my U Sonic broken or is it really that bad?
Also the "ear analyze" - really a thing or does it just equalize treble?
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Have you tried making a few different profiles? First one try to make sure you are in a very quiet room. While playing music you can definitely hear a difference when turning USonic on and off. Second profile in a somewhat noisy room and try that. When creating profiles not only does it analyze you ear canal but also the outside noise. I mean it isn't drastic but there is a difference.
Have you tried making a few different profiles? First one try to make sure you are in a very quiet room.
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Already did so, the line it generates looks very similar to the first one with some background sounds.
What I also noticed: When you stop the music the DAC still is active, with ANC activated you can hear some quiet white noise that stops quickly. This should be the "active" noise cancellation but it really is bad.. That feature seems to be a real disappointment to me, otherwise the phone is great!
Sorry to resurrect this thread but I just got my HTC U11 recently...
Is the agreed position that the ANC on HTC U11 + USonic is pretty much useless?
I ask because, I have owned a Sony Z5C and still own a Z3 tablet and a set of similar Sony NC earphones - that only work with a limited set of Sony devices.
With the Sony setup I can definitely hear a difference in background noise e.g. computer hum or Air con noise at work or Train hum noise on commute definitely gets reduced considerably as soon as I toggle NC on.
But with the HTC, I cannot tell any difference between NC enabled or disabled....
I spoke to HTC support and they have agreed to send me replacement Usonic - but will take 3-4 weeks!!
It worked for me, blocking some(low frequency) airplane engine and office air conditioning noise for me. Although not very effective.
Sorry for late reply - forgot to subscribe to thread.
I just got some Bose QC35 in the end - can now switch between my Z3C tablet and HTC U11 seamlessly..and pretty good NC too
It's not "not working at all", as an in-ear headset, Usonic offers good sound quality but I admit the anc functions is a bit weak on this.
It is somewhat capable of reduce the constant low frequency noise such as when you're on a plane or in a train. It however cannot block all the noise, you may consider it as "noise reduction", not completely "noise canceling".
I have the JBL RA C, compares to Usonic, the ANC is much better on JBL.