I just received the standard dock for my Atrix so I can listen to music at work and not drain the battery. The problem is that the volume level is to low with my mini-speakers plugged into the port on the back of the dock. If plug them into the phone the volume is perfect. So it isn't the phone or the speakers. Has anybody else had this issue?
Thanks!
I have only used headphones with it at work, volume is no doubt lower than plugging directly into the phone. Through headphone jack, it's using phone's internal D/A converter and amplifier. Through the standard dock, it is porting audio information through micro USB, and there has to be a separate D/A converter and amplifier in the standard dock that is less powerful, as I am assuming the signal is only converted to analog for headphone jack.
Related
I've got a problem when I plug my HTC Titan into my car stereo as well as cigarette adapter.
I'm also got a kind of custom setup using the HTC Y Adapter with a 2.5mm jack and MiniUSB jack
Audio
Honda Civic Stock Stereo -> CD Changer to Aux Input Adapter -> 3.5mm to 2.5mm adapter -> 2.5mm input on HTC Y adapter.
Power
Belkin Cig. Lighter to USB Female Port (From old iPaq) -> HTC Stock Sync/Charge USB cable -> MiniUSB input on HTC Y adapter.
So, when both the power and audio are plugged in, I hear a horrible hiss on my car stereo, not to mention a sound that varies in pitch to my throttle. When I unplug the power, the audio is completely clean. To me this seems like some kind of a grounding issue - to say that the Audio and Power both have seperate grounds, and bridging the two creates a potential difference in the form of noise on my Sound. Also to note: I only hear the noise when the Y adapter is plugged into the phone. With the audio and power plugged into the Y adapter, but the Y adapter not plugged into the phone, It's perfectly clean. I'm kind of baffeled.
The only solution I can think of is to gut the Belkin Power->USB adapter, and providing it from 12VDC elsewhere. I've got a tap directly below my passenger seat where I have a big power inverter tied to my battery. I don't know if I'd hear the same sound by grabbing my power from there.
Anyone with an engineering mindset have an idea? I'm open to suggestions.
You are right, you have a problem with ground.
I have the same problem with a mp3 player. When I plug the audio + power I have noise, just audio is fine.
You may try the inverter as it would probably filter the noise you're getting from the DC power in your car.
you just nead an in car ground loop isolator used for getting rid of noise on the low level signal to amplifiers.They are just a 1:1 audio transformer
Any incar hifi shop or ebay will have plenty.
I have the same problem, with a polaris using standard headphones. I'm thinking the polaris itself has issues dealing with audio+charging
i had the same problem with an ipod charger, sent the car to the wreckers, and woot, problem solved sorry that was no help
Usually happens when the signal wires (mm adapters + input cord) aren't shielded and pick up the magnetic field from the ground resulting in the engine noise. Sometimes, making sure the signal wires are not touching the power cord and keeping them separated might help. I'm not really sure, since I'm a 100% noob too all this. Let me know what your fix is. I'm not too hip on all the car audio stuff anymore, but if you wanna put some hydraulics in your ride, then I can definitely help you out.
more likely the problem is in the phone, so ...
I bought a car audio Panasonic DEH-50UB, an audio player that has an AUX connector for external source and want to use it together with my Qtek 2020i. I connect the car audio and PPC through the audio connector for headphones.
The problem is that I can not connect Qtek 2020i both to car audio and power supply via cigarette lighter.
When both cables are connected, I hear noise coming from my car loudspeakers. This noise appears while no audio signal is transmitted. During the playback there is no noise, but it reappears in the pauses between audio files. After 5-30 minutes of playing back the music my PPC hangs.
This situation is very disappointing for me, as I was going to use car loudspeakers for navigation to receive voice instructions form iGO etc.
I made some tests, and here are the results.
The PPC running on its own battery transmits audio to car speakers without any noise. That would have satisfied me, but this way the battery drains out.
If a PPC is connected to the power supply from the lighter, its own speaker produces no noise. Still the sound is too quiet.
The PPC works well with computer speakers both when it is connected to external power and whet it works with its own battery.
The USB adapter for car lighter works the same as the ordinary power adapter.
Does anyone know the solution for my problem?
the noise comes from the car electric installation - you must use an electrical filter (something like the small black box in car radios on the power wires)
you can read more about it here
http://www.caraudiobook.com/car_audio_noise_troubleshooting/car_audio_noise_troubleshooting.htm
Hello all ,
Is there a way to get an audio line-out from the Galaxy Nexus, either using an adapter or a docking station? I'm not looking for a solution like the one offered by the Samsung Galaxy S2's car dock (which streams bluetooth audio from the phone to the dock, then the dock turns the bluetooth streaming to analog audio through a 3.5mm port) but rather something like an adapter for the MHL port or from the docking station.
Appreciate all the help!
The obvious solution (at least to me) is to plug into the headphone jack. You could also use either the media dock or MHL adapter in conjunction with an HDMI-to-analog adapter such as the one linked below:
http://www.amazon.com/HDMI-RCA-comp...OQPU/ref=sr_1_2?ie=UTF8&qid=1321905031&sr=8-2
vespoid said:
The obvious solution (at least to me) is to plug into the headphone jack. You could also use either the media dock or MHL adapter in conjunction with an HDMI-to-analog adapter such as the one linked below:
http://www.amazon.com/HDMI-RCA-comp...OQPU/ref=sr_1_2?ie=UTF8&qid=1321905031&sr=8-2
Click to expand...
Click to collapse
He's asking for a line out solution because it will bypass the internal headphone amp that is utilized when the 3.5mm port is used. If you're plugging the phone into speakers or a sound system that way you'll get much better sound.
If the mhl -> HDMI cable adapter carries both audio and video, you could use an hdmi breakout adapter to split the digital audio. It depends on the HDMI output capabilities of the phone and the acceptability of digital audio for your needs.
Edit: would no doubt be a cumbersome solution. It all comes down to your usage scenario for the output.
Sent from my GT-P7510 using Tapatalk
Thank you vespoid, ardabey.
What OJ in Compton said, I'm looking to bypass the internal headphone amp, not sure if there are any details on the car dock or desk dock, I hope 3rd party manufacturers come up with something, any solutions are welcome.
Ali
Never thought about this, but a contactless dock with HDMI out directly to the AMP = audio bliss. Thanks to the forum for letting me see the obvious
Bumping this thread...has anyone successfully done this? I want line out audio for my car's 3.5mm AUX input - had it with my ipod and it sounded much better than through the headphone jack, as well the convenience of not having to maintain two volumes.
Hoping the official car dock that uses the 3 pin connector and has a 3.5 out would do this, but I'm worried it will just use BT to transmit the audio to the dock like I read the Nexus One dock did.
I wish too that the NG had line level out.
I think it's a limitation of the hardware. I think Apple is the online one that really uses line level out via it's dock connector.
I hope someday Google will use some sort of line level out on their reference hardware or built support directly into a newer OS.
I remember my old Dell DJ had line level out. Soooooo much better.
There is nothing wrong with the 3.5mm output sound quality wise.
Trying to drive headphone-like impedance (lower) with a line out isn't the best idea, but driving higher impedance inputs like your car deck isn't that bad as long as you let the amps do the "work" of boosting the volume and not your phone. While not optimal, the decrease in sound quality shouldn't be very noticeable.
The main advantage of the digital audio though USB (what apple does) IMO is that it eliminates the need to have both the USB plugged in to charge and the 3.5 mm cord for audio. It also allows song data to be shared and device control from the speaker/head unit. Good setups will recognize most android devices as mass USB storage and provide the same functionality, but I'm not sure how the MTS on the GN will affect this.
I would wait and see how the audio quality is from the dock. Even if it is bluetooth, the audio quality may not be that bad.
Lithoss said:
There is nothing wrong with the 3.5mm output sound quality wise.
Trying to drive headphone-like impedance (lower) with a line out isn't the best idea, but driving higher impedance inputs like your car deck isn't that bad as long as you let the amps do the "work" of boosting the volume and not your phone. While not optimal, the decrease in sound quality shouldn't be very noticeable.
The main advantage of the digital audio though USB (what apple does) IMO is that it eliminates the need to have both the USB plugged in to charge and the 3.5 mm cord for audio. It also allows song data to be shared and device control from the speaker/head unit. Good setups will recognize most android devices as mass USB storage and provide the same functionality, but I'm not sure how the MTS on the GN will affect this.
Click to expand...
Click to collapse
The problem is, that if the head unit supports MTP then yes it can read the device like mass-storage, thats fine, but it doesn't allow you to stream media from radio apps, youtube and turn-by-turn directions from gps, this is what we are looking for...
technically it's not sending analog audio output through the USB, its just reading the stored media on the phone.
I have read that samsung phones are able to accomplish sending analog audio through the USB while charging, with the correct resistance values (adapter) or possibly with software pointing the audio in that direction (for example code build into the framework/API)
this is one major thing that Android lacks over iPhone, this problem should be addressed ASAP. I'm hoping CM9 might be able to find a solution for this.
I agree, i hope they fix this soon toi. It would make the development of accessories much easier for all android phones. Seems like a no brainer but I guess Google has other priorities...
A feature request for Android 4.0 to enable USB audio:
http://code.google.com/p/android/issues/detail?id=24614
Juvenall said:
A feature request for Android 4.0 to enable USB audio:
http://code.google.com/p/android/issues/detail?id=24614
Click to expand...
Click to collapse
Just starred this, if the hardware is able to do that I find it completely stupid that they do not allow it.
Smartphones audio amps are not exactly famous for being top-quality so having this possibility would be great.
Thanks. The lack of this feature is ridiculous/mind-boggling/suprising.
Well, if you were waiting for the card dock to solve your problems... it doesn't. Plugging into the dock's "line out" gets you amp driven sound. I really do not understand why this is such an issue for Android. When I plug somoething into my 3 year old Nokia smartphone a window pops up for me to choose headphones, headset or line out. Why can't ICS offer the option and if in the car dock, default to line out? A USB solution is not going to help if you are using the car dock.
Juvenall said:
A feature request for Android 4.0 to enable USB audio:
http://code.google.com/p/android/issues/detail?id=24614
Click to expand...
Click to collapse
Yes, most def. I want to use several USB dacs on hand. Off for some op amp rollin'.
Edit: The pogo pin dock has a 3.5mm analog/digital output, FYI
Oops
flacoff said:
Edit: The pogo pin dock has a 3.5mm analog/digital output, FYI
Click to expand...
Click to collapse
Which if I understand correctly uses Bluetooth to transmit compressed audio from the phone to the dock, then delivers it through the 3.5mm jack. Why not just have a digital signal go through the USB port!?
ali87 said:
Which if I understand correctly uses Bluetooth to transmit compressed audio from the phone to the dock, then delivers it through the 3.5mm jack. Why not just have a digital signal go through the USB port!?
Click to expand...
Click to collapse
actually the pogo pin transfers the digitial audio and the dock decodes it into analog to the 3.5mm output
Hi
I'm fed up with audio quality of my HTC when connected to my Hi-Fi Amp. On headphones my HTC one sounds amazing, but when paired to my Hi-Fi amp I have to turn the audio levels on my phone and HiFi amp turned up to max just to hear the music at "normal" levels (this introduces back ground hiss / and distortion). There's an article here that explains where this is the case (in essence the output voltage from the headphone output is insufficient to drive an Hi-Fi amplifier).
Does anyone know where I can get a device (I'll call it a pre amp) that will convert (i.e. amplify) the headphone output to Line-out level voltages. I'm guessing a dock with line out would be okay - but my GF uses iPhone (with the same issues), so Ideally the headphone jack on my phone will connect to the pre-amp, with the pre-amp connecting to my Hi-Fi amplifier (the pre amp will be externally powered my mains adapter).
I live in the UK, so UK sources / experience be most relevant, but any feedback is welcomed.
Many thanks!
if you can find somewhere locally to buy/try out something like this it might work
http://www.amazon.com/Fiio-E07K-Portable-Headphone-Amplifier/dp/B00A9LHLQ6
The posts I have read show some success with certain android phones, though it's by no means a guaranteed success. It works with some Samsung devices, and our phones support USB OTG/Host mode, so at least on paper it should work.
well if the amp you're looking for is anything similar to amplifying nicer headphones, theres a couple of options available for you to just flat out buy (for anywhere from $20 - $100), or you can just make one yourself from an altoids can for $10 - $20 if you know the basics of electronics and soldering.
Supposedly you can use an OTG cable/adapter to hook up the phone to an USB DAC (must be self-powered, as the OTG cannot supply enough juice to the DAC) and then DAC to the amp. I'll try it when I get home tonight to see if it works. I read that it's possible, but haven't tried it myself.
[update] I tried hooking up my AT&T HTC One to the USB DAC (self-powered, not USB bus powered) via the OTG cable. The stock music app still play music through the phone. However, fire up PowerAmp and the music comes through the stereo! Sweet sound...
why not consider a bluetooth speaker adapter like this?
http://www.amazon.com/Logitech-Wireless-Speaker-Adapter-Bluetooth/dp/B004VM1T5S
i have one, connected to my hi-fi amplifier.
it's cheap, ands sounds very good!
I am a huge fan of the HTC Bluetooth adaptor, it works great and has great sound quality for a bluetooth.
Hi, so i tried playing music on my car with an aux cable and there is no sound but when i use my old Galaxy s3 music plays just fine.
I thought the problem was with my htc phone. Can anyone help me please?
Did you check that:
The volume is set correctly on the phone?. It will auto reduce the volume if it senses a headphone jack has been plugged in.
Headphones work with the phone?.
Bluetooth is OFF or not paired to the system?.
Beamed in by telepathy.
Do standard wired headphones work?
Yeah, headphones working just fine with the m9 and my volume was set to a maximum level but music plays through the phone speakers instead of the car's stereo.
Aux lead. Either not pushed in all the way (the last click will feel like your about to snap something) OR It's not compatible..
Just found an aux lead hidden in my car and that's no signal from this phone too.. I think the aux lead is too old and needs replacing with a newer model. Most likely a compatibility issue between the jack plug and socket. Further illustrated by the lack of mode switching by the phone. Basically it's not detecting the jack plug.
I presume if I started cutting wires and jack plugs up then I'd get it working in no time at all..
Beamed in by telepathy.