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I'm using the Desire as music player in mine auto. It's connected via aux to the stereo and works well, but when I connect the usb car charger begin a loud noise...that's connected directly with the car motor, because more high are the rpm and more is loud this noise
What I can do for solve this problem?
Same thing here, it has always been this way even with my old Nokias, HTCs, MP3 players... it's an interference you can't suppress, while charging and using an audio cable to AUX IN.
ps. I'd really like to be proven wrong by someone else who finds a solution for me, either!
By the way, how do you handle hands-free? You hear callers voices but you have no mic to speak in so they can't hear you.
Do you know any way to use Desire's mic as input AND 3.5mm-audio-out as output?
You need a noise filter! Google "car stereo noise filter", thye're cheap.
I dont get this, but I used to in my old car.
Its easy, you need a noise supressor on the line - what you are hearing is alternator whine (a whine that changes in pitch with the RPM speed on the car).
http://www.caraudiobook.com/car_audio_noise_troubleshooting/car_audio_noise_troubleshooting.htm
You need a "ground loop isolator", get one cheap with the connections you require from ebay.
losdrivare said:
You need a "ground loop isolator", get one cheap with the connections you require from ebay.
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Doens't exist a car charger that includes this "ground loop isolator"?
I have been researching online about using car aux-in cable for making phone calls.
I heard that some phones work and some do not. In those cases, when it doesn't work, it means that the person in the phone cannot hear what you say, because by default the mic is muted when something is plugged in to the jack.
With HTC Sensation, does this happen? Is the phone mic muted when a headset/aux cable is plugged in to the phone? If yes, is there any workaround? What is the general solution to make phone calls via aux cable?
I heard that some people might use the griffin cable with mic, but since my aux port is located where the shifter is, I am not sure how the quality would be. Any idea?
Thanks
absolution8 said:
I have been researching online about using car aux-in cable for making phone calls.
I heard that some phones work and some do not. In those cases, when it doesn't work, it means that the person in the phone cannot hear what you say, because by default the mic is muted when something is plugged in to the jack.
With HTC Sensation, does this happen? Is the phone mic muted when a headset/aux cable is plugged in to the phone? If yes, is there any workaround? What is the general solution to make phone calls via aux cable?
I heard that some people might use the griffin cable with mic, but since my aux port is located where the shifter is, I am not sure how the quality would be. Any idea?
Thanks
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well, i hope this answers ur question
i have made calls/received calls via aux (when im listening to music in da car n get a phone call i dont uplug it, just answer)
i talk thru the mic normally and i hear the other person from tha car speakers.
so i guess the mic is not muted
From previous experience - though not with Sensation, as I'm all blue-tooth now, the following was true
If you plug in a normal 3.5mm TRS jack (stereo headphone / line-in / etc) the phone detects it as headphones and not headset, so the device realised there was no "in-line" mic, and used the phone's microphone itself.
A better option (which I did) was to fashion my own lead - using another HTC headset, but removing the two earphones, and soldering the cables to an in-line socket. This worked well, because I had a microphone clipped to me, with remote control for music (don't want to touch the phone when driving now, do we!!) and the stereo audio feed back to the car speakers. Cost me about £3 in total, including the second headset.
I would imagine this to be the same for the Sensation too, as all these sockets have various detection mechanisms, to make the right things happen, depending on what you connect.
Good luck, and safe driving!
Hey guys,
I bought a One X recently, and I am noticing some static/hiss/noise coming from the headphones.
I tried connecting my One X to bigger speakers, and the noise is more noticeable this way. This is an odd issue, because none of my other phones behave this way.
The funny thing is, if you play music or notification noises play when the phone is connected to speakers, the noise goes away. But after one second, when the DAC shuts off, the noise comes back again.
My friend's One X has this problem as well, so I don't think I just have a lemon here.
Other forums seem to be talking about this issue as well
http://www.htconeforum.com/forum/htc-one-x-help/300-htc-one-x-sound-issues-headphones.html
http://www.htconeforum.com/forum/htc-one-x-help/327-sound-issue.html
I found one review that mentions this issue. They talk about it in the Beats Audio section, and there's a video with the noise.
http://www.tekgadg.com/home/2012/6/15/htc-one-x-rogers-review.html
I remember using a really cheap chinese knockoff mp3 player about 8 years ago, and the One X seems to have the same problem as that mp3 player. Could it be that the One X has a cheap DAC in it that causes this noise?
Anyone else experience this problem?
The first link is about the international version, the lte one x is technically the One XL, and this is the first time hearing about this. Mine doesn't have a problem and I listen to music all the time.
Just and idea possibly cheap headphones?
Sent from my HTC One X using Tapatalk 2
My music is crystal clear, probably one of the best quality sound outputs I've heard from a phone actually.
Mine has this problem, but I only notice when I hook it up to my car speakers (with an aux cable) and not with headphones (Bose). It's a lot more pronounced when the phone is plugged into usb as well. Once sound plays though, the hissing stops completely. It's only when there is no output that the hiss is present.
Edit: Could it possibly be interference from the cellular radio? Maybe once the DAC kicks in it filters out the interference?
Edit 2: Just read the 3rd link and yeah, my speculation seems to have some validity
"Adding insult to injury, HTC One X features a badly shielded headset jack that makes noise whenever it is hooked up to sensitive speakers. We compared it to high-end and low-end phones, and none of them made the annoying static noise that the One X makes. This isn't a serious problem for people who only listen to music through headphones, but you may want to stay away from the One X if you are thinking about playing music through it with big speakers."
I had the same problem. If you are rooted, disable beats audio notify with titanium backup. I did this and use power amp with custom eq settings and do not notice any hiss whatsoever.
Sent from my HTC One XL using XDA
Same problem here. WAY worse when plugged in and in my car. On regular headphones no problem. In my car it's huge. To me it reeked of a poor ground somewhere, to the point that I thought my unit was defective. If it were a shielding problem I would think it would be an issue all of the time, not just when the thing is "inactive" (ie not driving the jack). I've "disabled" beats to the extent that I can without rooting, and it had no noticeable difference.
Glad to hear it's not just me.
I notice the problem when I use both the microUSB charger and headphone jacket. Disconnect the charger cable usually solves my problem. Now, I switched to use BT car adapter instead of aux cable and I can use car charger without noise.
The problem is called BEATS AUDIO!
scroll to the bottom
http://www.gsmarena.com/htc_one_x-review-747p5.php
designgears said:
The problem is called BEATS AUDIO!
scroll to the bottom
http://www.gsmarena.com/htc_one_x-review-747p5.php
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I still get the hiss despite disabling Beats (as in just turning it off in the notification shade), although it is definitely not as bad as having Beats turned on. I'll freeze HTCBeatsNotify and see if it helps on the way to work tomorrow morning.
stnguyen09 said:
I still get the hiss despite disabling Beats (as in just turning it off in the notification shade), although it is definitely not as bad as having Beats turned on. I'll freeze HTCBeatsNotify and see if it helps on the way to work tomorrow morning.
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Sadly beats audio is integrated beyond what you can turn off in settings.
so, the only solution is to root the phone and completely kill Beats Audio?
I guess it's not a hardware problem then... Man, that sucks. Has this issue been brought to light by some big sites yet? We need to do something so HTC learns from this mistake.
By the way, here's the update I promised...
Like I said before, I disabled beats from the notification pulldown but the hiss was still there, although slightly less annoying. I froze HTCBeatsNotify (or whatever the actual name is) using TiBu so Beats doesn't even show up when I plug it in. Unfortunately, the hiss is still there at the same level it was at when I just disabled Beats from the notification pulldown.
Is Beats actually integrated into the hardware? Is the "poorly shielded headphone jack" mentioned in one of the OP's links still a valid assumption? Can someone running CM9/AOKP chime in on whether they get the hiss?
Edit: Before I head home today I'll go into Airplane mode to try to rule out the headset jack shielding.
Annnnd of course my experiment failed...hiss is still there
If the headphone jack is indeed poorly shielded, couldn't it pick up interference from anything? Not just the internal radios?
This means we'll have to go into some radio-free environment in order to determine whether it's the headphone jack or Beats Audio that causes this annoying hiss.
In either case, I'm disappointed in HTC.
ai4281 said:
If the headphone jack is indeed poorly shielded, couldn't it pick up interference from anything? Not just the internal radios?
This means we'll have to go into some radio-free environment in order to determine whether it's the headphone jack or Beats Audio that causes this annoying hiss.
In either case, I'm disappointed in HTC.
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Well I mean, the internal radio would be the strongest signal in the immediate area that would cause interference. Just look at old, poorly shielded computer speakers, they had issues only when a phone would go off within maybe a yard of them. I was in a parking garage at the time I tested and I'm not sure if there was anything else around that would be powerful enough to cause the interference.
Also something I noticed which may lend credence to the DAC being the source of the issue...Just plugging my phone into usb and having the headphone jack attached does not produce as much interference as when I'm streaming from Google Music and it gets caught buffering. As in, when the DAC would still be active but no audio is output. The hiss during that situation is quite a bit worse than just having the phone sit there not doing anything.
Since Beats is just a glorified equalizer, it could be that Beats just happens to be boosting the sound frequencies of the hiss and making it sound louder, and not the actual source of the hiss itself. So maybe it is a hardware issue.
Again, I can't imagine ti being "poor shielding" because that would not immediately go away once you started playing music. Think about typical cell phone interference from a radio. You're playing music, and you hear that "bvvvvrerrerrr" sound.
In the case of the HTC, as soon as you start playing music, the hum goes away IMMEDIATELY and completely as far as I can tell. If shielding were the problem it wouldn't it still be distorted regardless of whether the jack was actively playing anything or not?
Seems more to me that the DAC is leaving some signals floating, leaving them susceptible to noise, when it's not active, when it should be pulling them to a known state (probably ground)
Not from DAC either. If you plug in a headphone, you will not hear these noises. It seems only occur when you plug into AUX import of car or amps.
So, it is a hardware design problem that causes dirty interference escaped into audio output. When you plug in a normal headphone, it has very low impendence and the noise will not get amplifed at all. If you plug it into an AUX import, it will have a much higher impendence and hence the noise get carrier over and amplified.
foxbat121 said:
Not from DAC either. If you plug in a headphone, you will not hear these noises. It seems only occur when you plug into AUX import of car or amps.
So, it is a hardware design problem that causes dirty interference escaped into audio output. When you plug in a normal headphone, it has very low impendence and the noise will not get amplifed at all. If you plug it into an AUX import, it will have a much higher impendence and hence the noise get carrier over and amplified.
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Your explanation makes perfect sense. This seems to be the issue.
foxbat121 said:
Not from DAC either. If you plug in a headphone, you will not hear these noises. It seems only occur when you plug into AUX import of car or amps.
So, it is a hardware design problem that causes dirty interference escaped into audio output. When you plug in a normal headphone, it has very low impendence and the noise will not get amplifed at all. If you plug it into an AUX import, it will have a much higher impendence and hence the noise get carrier over and amplified.
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ai4281 said:
Your explanation makes perfect sense. This seems to be the issue.
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Click to collapse
I think we have a winner!
hey guys,
my One S has buzzing noise coming from the headphone jack, and this problem is pretty annoying especially when it's connected to my car stereo. I thought it might be just mine, but it seems like this is a common issue.
i found this video on youtube. I have the exact same buzz from my One S, though perhaps not as accentuated as in this video.
seems like the One X has this problem as well. found this thread at the One X board http://forum.xda-developers.com/showthread.php?t=1720212
is this a grounding problem in the headphone jack? Beats Audio? what do you guys think?
I've always had this problem with more than one phone. If you charge the phone via USB adapter from the car battery, it gets 10x worse.
This problem only happens when sound is being played back, so when music/video/game sound kick in, it stops. Do you get that noise when sound is being played back?
Bernardos70 said:
I've always had this problem with more than one phone. If you charge the phone via USB adapter from the car battery, it gets 10x worse.
This problem only happens when sound is being played back, so when music/video/game sound kick in, it stops. Do you get that noise when sound is being played back?
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The buzz is only audible when nothing is playing. Like in that video, when I stop playing music it will be silent for about 2 seconds and then the buzz kicks in again.
I didn't have this issue with other phones
I don't have any buzz, I double checked just to make sure.
Although it might be my headphones, the output is probably not strong enough to play the sound.
It's probably being heard in your car (or in the youtube video) because the output is being amplified.
I'm having the same issue with YouTube and Pandora.
xxquicksh0txx said:
It's probably being heard in your car (or in the youtube video) because the output is being amplified.
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you're right. the issue isn't as noticeable through earbuds. i think that's why many people are saying they don't have this issue. It's still bad though.
I don't know why HTC messed up this part when no other phones seem to have this issue. Makes me sad.
If it's easy to reproduce for you guys, I'd definitely be pushing for warranty replacement.
I do not have this problem at all. On my cheap pair of headphones or on my expensive one. No hum or sound.
the buzz is there, and it also was on my Desire.
Not when playing tho, only when connected and not playing. Not too annoying, always thought it was supposed to be like that.
And no, I have never heard it through ear buds or phones, only when connected to home stereo or car stereo, and if charged through cig-lighter-outlet it amplifies further...
Closed Source Project said:
I do not have this problem at all. On my cheap pair of headphones or on my expensive one. No hum or sound.
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It doesnt effect headphones, only when the sound is amplified. Like when you play music in your car.
Simply because that sound alone is not enough to drive the headphones.
Sent from my HTC VLE_U using xda premium
Whether its plugged in to a car or home stereo, its still using the output from the headphone jack. The power output from the jack is the same either way.
I plug mine in to the aux jack of my car stereo daily, and I have no buzz or hum. Do you have your phone plugged in to a power source at the same time? That buzz is usually caused by crosstalk from a poor quality power source.
Or, as I said earlier, it may just be a bad phone.
ptweasel said:
Whether its plugged in to a car or home stereo, its still using the output from the headphone jack. The power output from the jack is the same either way.
I plug mine in to the aux jack of my car stereo daily, and I have no buzz or hum. Do you have your phone plugged in to a power source at the same time? That buzz is usually caused by crosstalk from a poor quality power source.
Or, as I said earlier, it may just be a bad phone.
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Well my phone doesnt do it in my headphones. I can't test in car, no aux input.
What I was saying is that, of its buzzing in your car but not on your headphones its because the sound level at which the buzz is at isn't enough to drive your ear buds. But when the car stereo amplifies it its easily driving your car speakers.
Sent from my HTC VLE_U using xda premium
Anyone else having issues with the headphone jack working or partially working? Yesterday, I noticed that I had my phone plugged into the 3.5mm aux cable on my car but couldn't hear any sound and today I tried listening to music with some headphones but was only getting sound out of one headphone jack (these were on brand new Bose Sie2i). For the hell of it, I rebooted and it worked fine -- my guess is this is a software issue.