[Q] Weird signal disturbance - One (M7) Q&A, Help & Troubleshooting

Hi,
I noticed a weird problem in my HTC One ....While using my car charger and aux cable together, I noticed a weird signal disturbance in the speakers of the car whenever I made or answer a call(I was using the mic of the phone and the car speakers with the aux cable). The disturbance was something like the same disturbance that one gets in a landline when we keep the landline close to a mobile. When I removed the charger and used the aux cable only, the disturbance was gone so it's got definitely got to do something with the charger. Also, when talking from the mobile directly while using the charger, there is no disturbance. Is it something to do with the charger or my phone?

110 views and no reply? Someone please help

udit_narang said:
Hi,
I noticed a weird problem in my HTC One ....While using my car charger and aux cable together, I noticed a weird signal disturbance in the speakers of the car whenever I made or answer a call(I was using the mic of the phone and the car speakers with the aux cable). The disturbance was something like the same disturbance that one gets in a landline when we keep the landline close to a mobile. When I removed the charger and used the aux cable only, the disturbance was gone so it's got definitely got to do something with the charger. Also, when talking from the mobile directly while using the charger, there is no disturbance. Is it something to do with the charger or my phone?
Click to expand...
Click to collapse
Its maybe noise coming from your alternator to your charger. Your car alternator is AC current converted to DC trough a rectifier circuit. Even if its converted to DC, there is always a small quantum of residual AC in your car power system. That AC noise is then routed to the phone and then your audio system producing that audible noise from your speakers . Is that noise increasing in pitch with the acceleration (rev of your engine)? if yes, the best solution for this issue is to buy a noise filter.
If this is not that kind of noise (form alternator) its simply noise coming from your phone transceiver (like a pulsating noise). In that case you will need to have a very good aux cable (shielded) and all your car audio properly grounded and shielded.

udit_narang said:
110 views and no reply? Someone please help
Click to expand...
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You can't expect someone to reply to your every question. Just be patient

Related

The i.Trek Powered Cradle Mount with Powered Speaker

I recently purchased the i.Trek Powered Cradle Mount with Powered Speaker from Semsons (http://www.semsons.com/ipocrmowiins18.html). It arrived today and I wanted to jot down my first impressions. By the way, My Sprint Mogul is running the leaked 3.16 ROM and radio. So, I use the internal GPS for navigation. I bought the cradle/mount so that I could use my Mogul like a TomTom / Garmin / etc.
I purchased the cradle with the standard mounting kit and the RJ-11 to 4mm DC cable. It also came with a car adapter. The standard mounting kit includes 1 windshield mount (suction cup and flexible arm), 1 adhesive disc, and 1 vent clip adapter.
The windshield mounting arm seems very stiff and stable. I could not get the suction cup to disconnect from the window without flipping the release switch. I have not tried the vent clip, but it seems like it would attach to most vent configurations as the clips can attach to vertical or horizontal vents.
I was disappointed to see that the car adapter is not a mini-usb connection. You have to plug the car adapter into the cradle and dock the Mogul in the cradle to charge it. On that note, there is a switch on the side of the cradle that turns the charger on and off so that if the Mogul is fully charged, you can still use the speaker without sending power to the mogul's charging port.
The speaker on the cradle seems plenty loud. Unfortunately, there isn't a hardware volume adjustment for the built-in speaker. If you are driving a loud vehicle, you may have a little trouble hearing the speaker, but in my Buick sedan, I had no problems.
The dock has an RJ-11 port that you can use the included cable with to charge a GPS adapter. It also has an audio-in connection, however, the cradle does not come with a cable or microphone for audio-in. I believe this is a serious omission on i.Trek's part.
When docked, my Mogul played all of its audio through the cradle's speaker. As I said before, the volume was very adequate. However, I could not give any voice commands to MS Voice Command and callers could not hear me. I turned on Bluetooth and used my Jaw Bone headset and got the same results. Audio would come through the headset momentarily, switch back to the speaker on the cradle, and the caller could not hear me.
For some reason, plugging the Mogul into the cradle disables all microphones. I can only assume this is because the phone expects something to be plugged into the audio-in port on the cradle. This may become a serious problem for me as I take a lot of calls from the car. I have to undock the phone from the cradle to make or take a phone call. This is annoying, to say the least.
If anyone knows of a registry hack that will play audio through the speaker, but keep my Bluetooth headset active, please post it here or PM me. I would be very grateful.
I have taken some pictures of the dock and will post them soon. I hope this helps you make a decision about your purchase.
Sorry about the poor quality pics. I took them with my phone (kind of ironic, eh?).
so it does have an audio out and audio in. hmmm. i think you can get the clip on mic from seido for about 12 bucks. i may have to order this and an adaptor (stupid aftermarket proprietary plug required) for my radio and give it a shot.
all in all an external mic may be easier than using bluetooth and cause less of a problem <shrug>.
good luck and thanks for the pics.
Is that RJ11 to dc to power the cradle from a phone jack so you could use it as a charger in say a hotel room?
mogul67 said:
Is that RJ11 to dc to power the cradle from a phone jack so you could use it as a charger in say a hotel room?
Click to expand...
Click to collapse
No, they use the RJ-11 cable to charge a stand-alone GPS receiver. It has nothing to do with a land-line telephone.
This thing is a piece of crap.
It takes two hands to get the phone in or out. The sound from the audio output is horrible.
Save your money.
rangie said:
This thing is a piece of crap.
It takes two hands to get the phone in or out. The sound from the audio output is horrible.
Save your money.
Click to expand...
Click to collapse
Getting the phone into the cradle is definitely a pain in the neck. If you don't get it lined up just right, it won't dock. You would think they could have fit it to the phone a little better.

Noise when i talk, i handsfree and charge att the same time

Hi,,
When im driving, i have a 3 in 1 adapter so i can charge my phone and have the orginal handsfree on to. But they i talk to complain it a noice. and when i pull out the car charger the noice is gone.
other have the same problem?? is it a fix out?
THanks
I also have this problem, very anoing!
A friend has this problem with his kaiser phone when using handsfree adapter in car. It turns out it was because the usb connector was not pressed fully home into the phone. Or the phone was not fully seated in the cradle. Check this to see if it makes a difference. Partly seated gives charge but no handsfree. Fully seated gives both. Somewhere in between gives trouble.
The phone is chargeing. and the handsfree work. I dont hear the noise. but them i talking to hear it.. i tok out the charger from the sigaretplug and the noise was gone..

No sound when charging in car

I play music all other times and when it is charging in the house no problems right threw the phone speaker. But when its charging in the car no sound threw the phone speaker..
Any help?
Chris
are you using a USB splitter in the car that has a headphone jack on it?
No but i have a splitter with the usb charger slot and the usb headphone slot and when i use that it also does not work with the car charger and the headphones plugged in it charges but no music... And with no splitter and just the car charger plugged in and charging no music threw the phone speaker.. But at home when it is plugged in to the charger i get music threw the phone speaker
What make and model car charger?
I'd imagine since most people want to listen to music from the phone over the cars speakers (rather than out of the phones tinny speaker), your car charger has some means of hooking up the TyTN Is audio output to your cars speakers and so takes away it's audio but just currently doesn't have anywhere to send it. If you read the instructions for your car charger or have a look on the manufacturers website, that may help. As you haven't listed the charger make and model people with experience of your exact situation with the same item wont be able to chime in with how they sorted it but I'm surprised you dont want the better sound quality that comes from using your cars speakers
With the headphones plugged in directly (not via the splitter) do you get sound through the headphones as expected?
Yes headphones plugged in direct work fine.
I will check out the chargers website
Well it works now but i didnt do nothing i woke up and plugged into car charger and worked lol.. oh well
thanks all for the help.

Nexus 7 in car install Engine noise help??

alot of engine noise and hissing noise even when car is off
its a nexus 7 timurs rom, sound going from nexus via 3.5 tapped into factory cd changer any suggestions?
Ground loop isolator.......
I just solved this problem in my own installation. After some searching around, I ended up deciding on this:
http://www.amazon.com/gp/product/B001EAQTRI/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1
It's a good price, free shipping with Amazon Prime and completely eliminates the alternator whine you're experiencing.
Thanks i ordered it from my experience in car audio ground loop isolator a while removingr whine also make the sound dull
Maybe i am wrong but it doesnt seem like a proper solution
Maybe grounding usb power? Or the 3.5 mm jack on the nexus to the cars body?
Who said you had to use one in the audio line?
If you know what to look for you can isolate the noise in the power supply line itself.Something like this. Now the real question is why is it hissing even with the vehicle off. In reality it shouldn't do it at all but nothing is ever perfect and trying to track down a ground issue can be more trouble then it's worth. Do you have battery drain issues? or low charge or possibly high charge while driving? Wondering if you have a possible problem with the voltage regulator in the car itself. When they go back they can actually cause a draw with the vehicle off. Doubt that is the issue but figured I would ask.
And just to be clear as to what you are doing. You are going from the Nexus (headphone jack) to the front of the stock car stereo(AUX input 3.5 jack). Do you have the tablet plugged in to a cigarette adapter or charging by any means via the car? If so, have you tried having it not plugged into the charger to see if that changes anything? Most cigarette or power adapters are not isolated so if you use them you have the possibility of it happening.

[Q] Audio EMI Noise in Car - Should I return?

Coming from a developer edition M8 that I converted to Gpe....I purchased the 64 GB Nexus 6 from the Google Play store last week. Everything works great....except I hear a lot of EMI/Power noise when connected with a 3.5mm aux into my car stereo while the charger is plugged in. It is especially prevalent during any screen activity. The M8 had no such issue. I've taken the following troubleshooting steps:
1. Replaced the aux cable with a better shielded one.
2. Tried the supplied quick charge adapter and cable (my car has a power inverter built in).
3. Plugged the M8 back in with the above and didn't get any EMI.
The noise is present whether I am streaming from Spotify, Google Play, or playing Non-Streaming local media.
Has anyone experienced this kind of issue? Should I get an RMA from Google?
I love the phone so far....
I doubt you'll get any satisfaction from an RMA. My experience is that car radios are EMI nightmares, in that it really doesn't take much to trigger it.
You say that this is with the phone plugged in to power? As in, it is *NOT* present when it is running on battery? Car electrical systems are *incredibly* noisy. With a high voltage spark ignition system, it is no wonder at all!
In fact, for car audio enthusiasts, there are lots of special devices out there for handling this kind of noise, especially when dealing with amplifiers (which amplify the noise as much as the music!).
http://www.ebay.com/bhp/audio-noise-filter
Note that there are filters that clean the AUDIO line, and also filters that clean the POWER INPUT line.
*** This EMI noise does NOT indicate that there is a fault in your phone!
doitright said:
You say that this is with the phone plugged in to power? As in, it is *NOT* present when it is running on battery? Car electrical systems are *incredibly* noisy. With a high voltage spark ignition system, it is no wonder at all!
*** This EMI noise does NOT indicate that there is a fault in your phone!
Click to expand...
Click to collapse
Yes....if I remove the power cord, the EMI goes away. Perhaps the Nexus 6 is just more susceptible to this kind of interference.
skylaneffz said:
Yes....if I remove the power cord, the EMI goes away. Perhaps the Nexus 6 is just more susceptible to this kind of interference.
Click to expand...
Click to collapse
That's... pretty much what I said. I also explained why, and what you can do to deal with it, i.e. by installing filters.
Didn't read your post thoroughly, but you might have some ground loop problems. This happens whenever I have anything feeding audio into the aux line in my car that is also powered by one of my car's power ports. Try a ground loop isolator from Amazon and see if it solves it: http://www.amazon.com/PAC-SNI-1-3-5-3-5-mm-Isolator/dp/B001EAQTRI/ref=sr_1_1?ie=UTF8&qid=1434054047&sr=8-1&keywords=feedback+isolator

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