[Q] Audio output over USB cable? - G2 and Desire Z Q&A, Help & Troubleshooting

Hi Folks,
Please forgive (and link) me if this has been discussed elsewhere, but I've not been able to find much..
I'm trying to build a sort of car dock so I can charge my phone, play music and satnav through my cars head unit and maybe take calls...
I've got the charging covered by using a USB cable (with a USB OTG adapter on the end so that my phone goes into Car Dock mode when it's plugged in) and 12v-USB adapter which are both going to be hidden behind the dash and fed from a 12v accessory feed.
I can butcher a line in on my cars head-unit (VW Gamma in a mk4 Golf) and would like to feed this using the same USB-OTG cable, rather than a separate 3.5mm jack connection.
I've been able to find people who have rigged up a cable like this for other phones, connecting the L/R to the USB data lines and ground to ground to effectively provide a line-out. But I haven't been able to to get the same going with my Desire Z. I've rigged this up to my phone and it opens the car dock and charges, but still plays audio over it's external speaker as it usually would.
Does anyone know if there's a way to get my Desire Z to output audio over a USB(OTG) cable please?
Thanks in advance,
'tunes

When I drove a Taxi a couple of years back I had my SGSI connected to the car stereo with a small FM transmitter. This got its power and powered my phone, through the USB port, via the cars cigarette lighter socket. Spotify supplied the music and Google maps the navigation. I did not try, but guess that a bluetooth headset would have worked if I'd had one. I should mention that the phone did discharge despite being on 'charge'! I guess constant streaming of both music and map data over a data network, full brightness and the charge to the FM transmitter was a bit much for the usb charger

Related

Mini USB > 3.5 Jack?

Any adaptors that will allow me to use proper 3.5 inch headphone jack in place of the mini USB ones ( i dont like the in ear phones) checked ebay and couldnt see anything?
you want get one of these http://www.expansys.com/p.aspx?i=142090 - Mike
Ouch, that thing is both horribly badly designed and prohibitively expensive- it's going to stick out what looks like an inch by itself, most headphone plugs will add another inch on top of that- I need something that fits flush with the bottom of the phone (comes out at a right angle) AND supplies an input for the charger. One can only dream!
The orbit would make a great on-mains Wifi internet radio if such a gubbin existed- hook up some speakers, start TCPMP, sorted!
in which case if you don't like wires stop messing around and get a set of A2DP compatible headphones - the quality is very good, but far more costly than a cable addaptor - the choice is yours - Mike
Might have been worth while if I didn't use an iPod for all my portable audio needs- have you seen any A2DP compatible speakers around?
Looks like there are hacks out there, but no official products, the combination really would just turn the Orbit into an incredibly expensive Wifi radio! But where's the fun in just going out and buying a proper one!
Have a look at the products made by Parrot there are a few Bluetooth audio add on boxes, I fail to see the relevance to WiFi?? as the A2DP profile is Bluetooth - it even works on the T-Mobile MDA-CIII which has no WiFi - Mike
I say wifi radio because I listen to internet radio stations around the house using the Orbit, and the ol' tinternet comes via the wifi doohickey!
A2DP is, of course, a bluetooth profile and would be the method over which I get decent sounding audio from the Orbit to some speakers whilst still having the Orbit plugged into mains so the battery doesn't get sucked dry... that said I think the Orbit will last a good few hours streaming internet radio, although I have yet to put that to the test.
My other solution would be, as mentioned above, an adaptor that allows both the charger AND headset to be plugged in- I can't see this as being technically impossible.
With a brief cursory investigation I have discovered, I think, that the headset uses a proprietary 6-pin connection on the opposite side of the mini-usb connector. The headphones do not use the 4-pin standard mini-usb connector on the other side, but a connector that uses both should be reasonably simple to produce. Ergo it should be childs play for a third party to produce an Artemis dock that contains not only a connection to USB but a standard 3.5mm amplified microphone socket alongside a standard 3.5mm amplified stero audio jack... not to mention a button on the front of the dock for picking up calls and a volume slider if you really wanted them.
Call me crazy, but I want one of those!
You could try this
http://www.expansys.com/htc/p_htc_item.aspx?i=145066
Might do the trick even if it is a bit long
Rich
Dear lord! You've made my day! Hmmm, a little jiggery pokery and I might even be able to incorporate that into a dock but it'll be fantastic for charging and listening to net radio at work- takes that little extra load off my desktop PC.
Cheers!
Glad I could help
richiev4 said:
You could try this
http://www.expansys.com/htc/p_htc_item.aspx?i=145066
Might do the trick even if it is a bit long
Rich
Click to expand...
Click to collapse
Hi,
Does anyone know if the above would work with a set of mini stereo speakers with a 3.5mm headphone jack (like the walkman speakers i used to have, back in the day...) to listen to the FM radio while charging the phone from mains? Or would you still need the headphones plugged into get any FM reception?
Daft question maybe, but I wondered whether the device would just use the speaker wires as an antenna instead of the headphone wires?
It will work fine, I am going to use mine to connect my orbit to my home stereo and charge it at the same time.
Rich
2.5mm 3 pole jack plug
Hi,
Anybody know of an Artemis mini usb to 2.5mm 3 pole jack plug adapter which allows the connection to deliver audio and microphone capability ?
I would like to connet my Artemis/Orbit to the Autocom intercom system on my motorcycle . This uses a lead with a 2.5mm jack plug at the phone end and a 3.5mm jack at the Autocom system end. Both are 3 pole.
Thanks
P.S. hope you don't mind me jumping in your postings
http://www.expansys.com/s.aspx
try doing a search for "2.5mm"
A very good Items for the Artemis on EbaY :
look :
http://cgi.ebay.fr/FOR-ORANGE-SPV-E...ryZ14419QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
2.5mm 3 pole jack plug adatper
I think I've found exactly what I'm looking for at:
http://igonemobile.com/products/html/61315310.html
I've got one on order and I'll let you know if it works.
cegmawr said:
Hi,
Anybody know of an Artemis mini usb to 2.5mm 3 pole jack plug adapter which allows the connection to deliver audio and microphone capability ?
I would like to connet my Artemis/Orbit to the Autocom intercom system on my motorcycle . This uses a lead with a 2.5mm jack plug at the phone end and a 3.5mm jack at the Autocom system end. Both are 3 pole.
Thanks
P.S. hope you don't mind me jumping in your postings
Click to expand...
Click to collapse
Is this so you can listen to music from the Orbit? I've had difficulty on my bike with this...music cuts out and wont restart after phone call is over. In the end, I bought the Autocom bluetooth dongle and now bluetooth the Orbit to the bike. I get phone calls and GPS just fine, but I use a wired iPod for music.
cegmawr said:
I think I've found exactly what I'm looking for at:
http://igonemobile.com/products/html/61315310.html
I've got one on order and I'll let you know if it works.
Click to expand...
Click to collapse
Does this support the Artemis? It isn't in the list....
There was a posting for the mini USB PinOut some Time ago. Look in the wiki Section to find it. Here is what they showed up with.
Maybe This will Help someone to build their own Adapter or whatsoever.
Greetings
Jabami
so what was the general concensus with using Autocom? Did the 2.5mm jack work?
I want to avoid using the bluetooth option on autocom, since I might just as well go for a Scala bluetooth headset instead if the jack doesnt work...

Audio & Power in car: Electrical Noise

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 ...

HTC PDA with 3-in-1 adapter

HTC PDA with 3-in-1 adapter
Hi community!
I have a small problem .... I have bought this http://www.amazon.de/Original-HTC-T-Mobile-Vodafone-Smartphones/dp/B000T92QF4/ref=sr_1_12?ie=UTF8&s=ce-de&qid=1211719958&sr=8-12 adapter for my XDA Terra and everything works very well! I can listen to my music by headphones, while the PDA is charging etc
Only in my car I got problems!
I drive a Toyota Aygo (like Citron C1 or Peugeot 1001) wich has an auxiliary input on the radio! If I connect my PDA with the adapter to the aux input everything ist OK, music is played, everything normal, but once I connect electricity, through a USB car charger, I hear a very loud noise! In addition, there is still a induced noise when I accelerate ...
If I put my MD player between sound of electricity , I don't have this noise!
Can anyone help? Do you have the problem too? Can someone test this, maybe who has a radio with AuxIn? Would an other adapter help? What do you have?
I hope you can give me an answer to my questions!?
Thanks a lot!
ruebyi
P.S.: Here is my question in German http://www.ppc-welt.info/community/showthread.php?t=130394
well, not sure what to tell you, I have the exact same adaptor set up in my car, with audio going to the aux in on the radio, and a car usb charger for power, and the 3rd slot with a microphone for hands free phone use. Works just great in my Dodge pickup with stock radio. I can hear music or phone over the stereo speakers, and having the microphone hookup people hear me just fine, and the unit is charged the whole time. not sure, but have you tried switching the two usb ports, maybe whatever is causing the interference will go away if you switch to the 2nd usb port?
How to fix the problem..
Hello,
What you are experiencing is sometimes known as floaty ground-loop feedback. It will be especially noisy if you're using a DC->AC inverter.
The best solution is to do as the MD player does: isolate the circuits (by that, I mean isolate the audio-output from the power-input circuits)
I had this problem once, so I went to the local Radio Shack and picked up two of these (RS Part# 273-1374) - Audio Isolation Transformers, 1:1 winding. Simply wire it as follows (using a 3.5mm male & female plug to add it inline to the 3.5mm output from your 3-in-1 adapter):
Audio input (from the 3-in-1 3.5mm output):
L -> WHT on transformer 1
R -> WHT on transformer 2
G -> BLK on both transformers, connected together
Audio output (to the plug which you plug into the 3-in-1):
L -> RED on transformer 1
R -> RED on transformer 2
G -> YEL on both transformers, connected together
When I built one, it fit into a small 2.5x0.75x1.5 enclosure (including male and female 3.5mm stereo plugs) and it helped to solve the problem. Another solution might be to find (in your local electronics store) an inline audio filter.. They are pretty cheap, usually less than $10..
Hope this helps!
--Weasel5i2
sounds to me like your car has a bad ground. test it out in a different car.
same for me with any HTC adaptors. When i use a cheap chinese make there is no problem

ExtUSB 3-in-1 Power/LineOut/LineIn

I'm after an adapter to work with my WinMo device which allows me to connect up my own Mic.
The one that almost fits the bill is this ExtUSB 3-in-1 Adaptor but the problem is with the Mic!
I have my own Mic already wired in and a fair way from where the adapter is going to be located. Ideally, I just need a 3.5mm jack for the Mic to go into, just like the 3.5mm jack for the audio out.
The final result being I have a handsfree solution in the car, connected up through the car stereo speakers and a handsfree mic.
Can anyone see any issues with this setup? Does anyone know where I can obtain such an adapter?
1) I tried that adapter with my Touch PRO and it messed up somehow the audio managment so after plugging it in once - after receiving a call I could speak but the device become totally unresponsive only reset worked until a next call... so I hard reseted device and bought the HTC original one.
2) You might get a ground loop when using audio together with charging. I have had it with different cars, devices (laptops/handhelds). The ground loop will give you loud unwanted digital noise while charging. There are workarounds but might not be easy to reach. Basically you need to get the power from the SAME WIRE as the amplifier does.
I have this exact setup in my car and it does work, no feedback problems. I also have the same problem of microphone placement. I have been unable to find an adaptor or a microphone with a long enough wire to do what I wanted, so I had to modify my microphone placement(put it on the dash as oppossed to my sun visor where I wanted it). Other than that issue, it does work great, sounds great over the stereo(both phone calls and music), and charges up at the same time. If you do find either an adaptor or a stupid mini usb microphone with about a 4 foot wire, let me know.
bsell1 said:
I have this exact setup in my car and it does work, no feedback problems. I also have the same problem of microphone placement. I have been unable to find an adaptor or a microphone with a long enough wire to do what I wanted, so I had to modify my microphone placement(put it on the dash as oppossed to my sun visor where I wanted it). Other than that issue, it does work great, sounds great over the stereo(both phone calls and music), and charges up at the same time. If you do find either an adaptor or a stupid mini usb microphone with about a 4 foot wire, let me know.
Click to expand...
Click to collapse
How about the charging?... Is there any change in the audio when plugging in? Try lowering the vol of device as low as possible and maximize the vol of amp.
not at all. The way I have it set up, it is charging or powered the whole time. Of the 3 inputs on the adaptor, one goes to the aux in on my car stereo, one goes to a car power adaptor I installed under the dash, and the 3rd goes to the microphone. I have bluetooth on, so it works with the gps reciever I have(I have an older model without built in gps) and I programed 1 of the buttons to turn on the gps program. Another button is programed to turn on the audio player(I think it is pocket player), which feeds audio to the car stereo anytime I have the aux button pressed on the car stereo. When a phone call comes in, the song pauses and all I have to do is hit the little green answer button on the phone to use it as a speakerphone. Audio is great. I have all the wires snake into one of those little pockets on the dash so there are not a lot of wires going everywhere. Takes about 5-10 seconds to set it up when I get in the car, and about 3 seconds to disconnect when I leave.

[Q] Interesting iBolt Conundrum

I apologize if this is the wrong forum for this-it seemed like the best option for me. I know that it pertains to a GSIII accessory, but the problem I'm detailing could pertain to other car docks as well.
Up until recently, I've been using a tape deck adapter to connect my Android phone to my car stereo to listen to music, make calls, etc. I recently received an iBolt car dock for my phone for Christmas. It uses a microUSB connection to charge the phone and stream audio to the stereo. Normally, the audio would stream to an auxiliary plug in the stereo, but my car doesn't have such a plug.
My thinking was that I would get a 3.5mm stereo coupler to connect my tape deck adapter to the dock, and then to my phone through the microUSB connection. However, this doesn't seem to be working. With this setup, any music I play comes out of my phone's speaker, rather than the car stereo. What's odd is that when I connect my phone to the dock, I can hear the car stereo speakers pop a bit, indicating an audio connection.
I have confirmed that the coupler works properly with a different setup. (I connected my earbuds to my phone using an auxiliary cable as a bridge) Am I doing something wrong, or is this type of connection simply impossible for some reason? Any help would be greatly appreciated. I'll provide some hardware information below, if that helps.
I'm also aware that I could just keep using the tape deck adapter for sound directly, but it would be nice to eliminate that extra step in hooking my phone up.
Phone: Samsung Galaxy S III (Cyanogenmod 10, Poweramp for music)
Car Dock: http://www.amazon.com/iBOLT-Hands-free-Vehicle-Charging-Samsung/dp/B008TYXABU/ref=sr_1_1?s=electronics&ie=UTF8&qid=1357237098&sr=1-1&keywords=ibolt+galaxy+s3
Coupler: http://www.amazon.com/dp/B003N3G7PS/ref=pe_175190_21431760_M3T1_ST1_dp_2
Car: The car is a 2000 Ford Focus, I don't really know much about the stereo. It has no auxiliary plug, just a 3.5mm adapter connected to the tape deck.
Rixanu said:
I apologize if this is the wrong forum for this-it seemed like the best option for me. I know that it pertains to a GSIII accessory, but the problem I'm detailing could pertain to other car docks as well.
Up until recently, I've been using a tape deck adapter to connect my Android phone to my car stereo to listen to music, make calls, etc. I recently received an iBolt car dock for my phone for Christmas. It uses a microUSB connection to charge the phone and stream audio to the stereo. Normally, the audio would stream to an auxiliary plug in the stereo, but my car doesn't have such a plug.
My thinking was that I would get a 3.5mm stereo coupler to connect my tape deck adapter to the dock, and then to my phone through the microUSB connection. However, this doesn't seem to be working. With this setup, any music I play comes out of my phone's speaker, rather than the car stereo. What's odd is that when I connect my phone to the dock, I can hear the car stereo speakers pop a bit, indicating an audio connection.
I have confirmed that the coupler works properly with a different setup. (I connected my earbuds to my phone using an auxiliary cable as a bridge) Am I doing something wrong, or is this type of connection simply impossible for some reason? Any help would be greatly appreciated. I'll provide some hardware information below, if that helps.
I'm also aware that I could just keep using the tape deck adapter for sound directly, but it would be nice to eliminate that extra step in hooking my phone up.
Phone: Samsung Galaxy S III (Cyanogenmod 10, Poweramp for music)
Car Dock: http://www.amazon.com/iBOLT-Hands-free-Vehicle-Charging-Samsung/dp/B008TYXABU/ref=sr_1_1?s=electronics&ie=UTF8&qid=1357237098&sr=1-1&keywords=ibolt+galaxy+s3
Coupler: http://www.amazon.com/dp/B003N3G7PS/ref=pe_175190_21431760_M3T1_ST1_dp_2
Car: The car is a 2000 Ford Focus, I don't really know much about the stereo. It has no auxiliary plug, just a 3.5mm adapter connected to the tape deck.
Click to expand...
Click to collapse
Hi there, first of all you must make sure under "Settings - Accessory - Audio output" that this is selected when having the iBOLT Dock connected to your car 3.5 mm "cassette in" solution. It should work fine for playing music but Samsung does not transfer phone calls to an external speaker, only sounds from applications. Hope this helps?
MikaelPe said:
Hi there, first of all you must make sure under "Settings - Accessory - Audio output" that this is selected when having the iBOLT Dock connected to your car 3.5 mm "cassette in" solution. It should work fine for playing music but Samsung does not transfer phone calls to an external speaker, only sounds from applications. Hope this helps?
Click to expand...
Click to collapse
I couldn't find the setting that you were talking about, though I found a different one that has solved the issue...sort of. I couldn't find any "accessory" menu under settings, but I did find a setting: "Settings - Advanced - Sound - Use USB Dock Audio" This lets the phone stream audio to the stereo with my convoluted little setup.
The new issue is that the sound coming out of the stereo is of terrible quality compared to simply plugging the tape deck adapter directly into the phone. I also hear a static-y, squeaky noise coming out of the speakers when nothing is playing. Is this simply due to the odd nature of the connection, or is there something I can do about it?

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