I was at work the other week and had a slight problem.. how the hell do i get music from a TG01 into a sound desk.. I tried to use the micro USB to 3.5mm adapter with a 3.5 to 3.5mm cable into the desk AUX input, we also tried using a 3.5 to RCA cable... the final thing we tried to make sure it wasnt a problem with the desk was to go straight into the DJ mixer using a 3.5mm cable. nothing worked. but Iphones, Ipod, other MP3 players all work using this method...
any ideas folks?
Have you tested the supplied USB to 3.5mm with a normal earbud? do you get sound out of it?
The USB to 3.5mm cable is just a simple Analog Left/Right/Ground port and so it should work with any Stereo plug regardless of the destination
I suspect that the USB to 3.5mm you used is busted
you can also use a bluetooth adapter with 3,5mm plug, the one i use was 32,- euros and works perfect
Wandy_1974 said:
Have you tested the supplied USB to 3.5mm with a normal earbud? do you get sound out of it?
The USB to 3.5mm cable is just a simple Analog Left/Right/Ground port and so it should work with any Stereo plug regardless of the destination
I suspect that the USB to 3.5mm you used is busted
Click to expand...
Click to collapse
Not at all.
The TG01 does require a certain resistance to be presented to the device and it is this which it interprets as to how to respond.
If the two data lines D- and D+ are shorted, it will go into Charge mode. If it sees a resistance of around 20 Ohms or more it will switch the audio output to the micro USB port. Typical earphones will have an impedance of around 30 Ohms, while the input to many battery powered external speakers is 4 or perhaps 8 Ohms (ever lower on amplifiers). This is why your TG01 worked fine into the earphones but not your external feed.
This texts it's not mine (just the blue one). It was written for the great kevinpwhite, on MODACO some time ago. And it's true (I've made the resistor modification in a set of stereo amplified speakers than failed as Tomsutton said and now they work perfectly.)
You can read the full explanation here: (I'm xdalover on Modaco )
http://www.modaco.com/content/toshiba-tg01-tg01-modaco-com/298887/headphone-amplified-sound-output/
(from post #7)
Have a nice day
Pere said:
Not at all.
The TG01 does require a certain resistance to be presented to the device and it is this which it interprets as to how to respond.
If the two data lines D- and D+ are shorted, it will go into Charge mode. If it sees a resistance of around 20 Ohms or more it will switch the audio output to the micro USB port. Typical earphones will have an impedance of around 30 Ohms, while the input to many battery powered external speakers is 4 or perhaps 8 Ohms (ever lower on amplifiers). This is why your TG01 worked fine into the earphones but not your external feed.
This texts it's not mine (just the blue one). It was written for the great kevinpwhite, on MODACO some time ago. And it's true (I've made the resistor modification in a set of stereo amplified speakers than failed as Tomsutton said and now they work perfectly.)
You can read the full explanation here: (I'm xdalover on Modaco )
http://www.modaco.com/content/toshiba-tg01-tg01-modaco-com/298887/headphone-amplified-sound-output/
(from post #7)
Have a nice day
Click to expand...
Click to collapse
Cheers pete, Il dig out the specs of the desk and see what the resistance is, I dont remember it going into charging mode though..
Why would an Ipod work but the TG01 wont?
tomsutton529 said:
Cheers pete, Il dig out the specs of the desk and see what the resistance is, I dont remember it going into charging mode though..
Click to expand...
Click to collapse
If standard headphones works and aux IN don't work, no doubt. This is the origin of your problem
tomsutton529 said:
Why would an Ipod work but the TG01 wont?
Click to expand...
Click to collapse
Easy, an Ipod has a dedicated analogic output. Instead TG01 has a shared USB port with different uses...
Noticed this on mine when I wanted to play music from the phone on my stereo. VERY annoying, and a bit daft of them to do this, even though it's a shared port.
There should be a software option to enable the usb port for purely sound to allow it to pass it across. I see the hardware resistive work as a workaround not the solution (although well done on getting it working!!)
no way. toshiba support:
"There are no settings available on the phone in order to set up the electrical resistance."
tomsutton529 said:
I was at work the other week and had a slight problem.. how the hell do i get music from a TG01 into a sound desk.. I tried to use the micro USB to 3.5mm adapter with a 3.5 to 3.5mm cable into the desk AUX input, we also tried using a 3.5 to RCA cable... the final thing we tried to make sure it wasnt a problem with the desk was to go straight into the DJ mixer using a 3.5mm cable. nothing worked. but Iphones, Ipod, other MP3 players all work using this method...
any ideas folks?
Click to expand...
Click to collapse
With thanks to Pere for the kind words above re. my earlier explanations on this subject on MoDaCo....
....in addition, please note that all of these charactaristics are an intentional part of the micro USB AB 'On The Go' port design and will become increasingly the norm as more devices adopt uUSB.
There is at least one chip being manufactured, but as yet not available to individual purchasers, which will support an external plug in device capable of providing intelligent charging combined with concurrent audio out. Sort of configuration applicable to eg. a car hands free scenario. I imagine that such add-ons will start to become available in due course - this is one of the drawbacks of choosing what is still a leading edge device well over a year after it first appeared !
For the mixing desk input, I'd suggest using an isolating transformer (eg. these here) as the ideal means of coupling - this will provide the necessary impedance (typically >10kOhms) to make the TG01 respond with an audio output while also ensuring electrical separation and maintaining as high quality audio signal as possible.
Related
Anyone have a solution for this? I'd like to be able to play MP3's through my car stereo (via FM transmitter), as well as have it plugged into my car lighter to keep it charged.
I figure I can buy the audio adapter and plug it into a generic FM transmitter. I could also buy a boxwave Versacharger to charge it. But I can't do both at the same time b/c they both use the mini USB.
In any event, this proprietary crap sucks.
The only option I'm aware of:
http://www.mobileplanet.com/p.aspx?i=140425
yes, this is the UNIC option.. because:
a) HTC Proprietary connector: it's VERY DIFFICULT to find this type of mini-usb connector
b) Stereo headphones provided with hermes DOESN't have cables to charge the pda
Expensive option... get a bluetooth headset with 3.5mm input to connect to your FM transmitter ... and say bye bye to wired music.. almost..
sickchilly said:
The only option I'm aware of:
http://www.mobileplanet.com/p.aspx?i=140425
Click to expand...
Click to collapse
Excellent! Exactly what I was looking for....
new2city said:
Expensive option... get a bluetooth headset with 3.5mm input to connect to your FM transmitter ... and say bye bye to wired music.. almost..
Click to expand...
Click to collapse
Heheh... I actually thought of that. I think I'll go with the cheaper option
Here's how I did it:
http://forum.xda-developers.com/showpost.php?p=1078942&postcount=26
Has anyone managed to not only get the sound going through their speakers, but have their stereo mute on incoming call?
I'm not sure this is possible. I imagine your average phone has a pin it sets closed or high or something. The hermes doesn't seem to..
URPREY: Does the adaptor give you one standard mini usb for charging then split the 'special' audio pins to the other standard mini usb? Did you then just adapt a mini usb cable to hook into the line level inputs of your stereo?
icemantwilight said:
URPREY: Does the adaptor give you one standard mini usb for charging then split the 'special' audio pins to the other standard mini usb? Did you then just adapt a mini usb cable to hook into the line level inputs of your stereo?
Click to expand...
Click to collapse
It gives me one mini USB for charging, and a port exactly like that on the hermes for the audio/headset portion. I used a usb to 3.5mm adapter from mobileplanet.com to give me the 3.5mm audio out.
URPREY said:
It gives me one mini USB for charging, and a port exactly like that on the hermes for the audio/headset portion. I used a usb to 3.5mm adapter from mobileplanet.com to give me the 3.5mm audio out.
Click to expand...
Click to collapse
Yep, sorry, didn't see the extra adapter. That's a shame. It makes the very expensive first plug poor value for money.
If they come out with an adapter that turns it into mini USB and 3.5mm I'll go for it.. otherwise..
2 other q's:
1) With the first adapter, can you then use ANY usb car charger (ie does it bridge the NC pin to ground?) or do you then need your car charger to do that
2) What triggers 'headphone' detection? Is it the first adapter, the stereo adapter or is it actually plugging speakers into the stereo adapter?
This information would be extremely helpful, thank you!
icemantwilight said:
1) With the first adapter, can you then use ANY usb car charger (ie does it bridge the NC pin to ground?) or do you then need your car charger to do that
2) What triggers 'headphone' detection? Is it the first adapter, the stereo adapter or is it actually plugging speakers into the stereo adapter?
This information would be extremely helpful, thank you!
Click to expand...
Click to collapse
I can use any car charger, but the other ones I have don't provide enough power to consistently cause the 8525 to recognize the charger (and thus they don't always charge).
I don't know the answer to your second question. I'd be happy to check it out for you tomorrow when it's light outside again
URPREY said:
I can use any car charger, but the other ones I have don't provide enough power to consistently cause the 8525 to recognize the charger (and thus they don't always charge).
I don't know the answer to your second question. I'd be happy to check it out for you tomorrow when it's light outside again
Click to expand...
Click to collapse
Cheers for that. By not consistently recognize you mean it detects it the first time you plug it in then not anymore? If so that sounds like what I've found too.. it's due to the 'spare' pin 4 (or 2 or B depending what diagram you're looking at) not being grounded. The fact it detects it once per reset seems to be a bug.
icemantwilight said:
Cheers for that. By not consistently recognize you mean it detects it the first time you plug it in then not anymore?
Click to expand...
Click to collapse
Correct. The car charger that came with my device holder works perfectly and consistently charges my phone every time I plug it in, so I've always use that one.
URPREY said:
I don't know the answer to your second question. I'd be happy to check it out for you tomorrow when it's light outside again
Click to expand...
Click to collapse
Had a chance to look at this?
icemantwilight said:
Had a chance to look at this?
Click to expand...
Click to collapse
Sorry - yes. With just the audio adapter hooked up, the sound continues to come out of the rear speaker. When I plug in the headphones, the sound switches to the headphones. Hope that helps.
URPREY said:
Sorry - yes. With just the audio adapter hooked up, the sound continues to come out of the rear speaker. When I plug in the headphones, the sound switches to the headphones. Hope that helps.
Click to expand...
Click to collapse
Yep thanks. From this I can work out from the pin outs that have been worked out that the tytn detects headphones (and thus shuts off the back speaker) by testing impedance/capacitance or something on the speaker out cables.
Since there are no official cradles for the tytn I'm looking at knocking up a solution like yours, charge in the car and gps nav through the stereo (was hoping for auto stereo mute on call but that's a pipe dream) and doing it without the 2 expensive adapters and car charger my jasjam didn't have.
I've gathered a bit of info about the usb connection from various sites and forum topics. Maybe I should create a/add to the hermes usb port page in the wiki, if anyone but me is interested..
I hope the tytn Y cable is NEEDED, because there isn't a male "minu usb" jack like the one on the hermes in commerce. Cutting original headphones has no results because you can't charge it.
I have thought to buy tytn y cable, open it, and if there is some space inside, to add a 2.5mm - 3.5mm (depends on the free space) jack
So the Y adapter has 3 outputs: to charge, headset & jack.
If no space is avaiable, i cut my headphones and plug it from y cable to my stereo (also with mic included).
Another thing, to detect ORIGINAL CHARGER must be connected B & A pins, as described in THIS url comments
I agree with wiki page
SkizZO said:
Another thing, to detect ORIGINAL CHARGER must be connected B & A pins, as described in THIS url comments
Click to expand...
Click to collapse
Ah yeah, I'm Iceman, I wrote that
Based mainly on comments in this thread, some other posts and some jiggery pokery with a multimeter and checking pinouts.
icemantwilight said:
Has anyone managed to not only get the sound going through their speakers, but have their stereo mute on incoming call?
Parrot makes a BT car kit that connects into all factory stereos to use the speakers to play the phone or mp3 through the car stereo speakers. Obviously the mic is a separate item, but incoming calls (or listing to mp3s from your BT phone) do mute the car stereo during the call.
several kits work, but I have Parrot CK3000 Evolution Bluetooth, Hands-Free Car Kit which came with specific harnesses for my car make and model. The other one is a bit flashier here:
http://www.abtelectronics.com/scripts/site/site_product.php3?source=froogle&id=24115
Click to expand...
Click to collapse
icemantwilight said:
Since there are no official cradles for the tytn I'm looking at knocking up a solution like yours, charge in the car and gps nav through the stereo (was hoping for auto stereo mute on call but that's a pipe dream) and doing it without the 2 expensive adapters and car charger my jasjam didn't have.
Click to expand...
Click to collapse
Auto stereo mute works fine if you use WMP or even with TCPMP if you uncheck the "play music in background" option
Guys,
I bought a cradle from ebay (leeonline) because I cannot get a 4 in 1 adaptor from HTC. I tried using the vga-out (17 inch CRT Monitor), rca video out (our Television Set), Brandless USB hub, Generic/standard USB Keyboard and Generic/standard USB Mouse on it all at the same time. Everything works.
Now, I really no longer bring my laptop to work. My athena is all I need for Word Processing, Spreadsheets etc. There are quirks though. Sometimes, the mouse stops working or the athena hangs. (It may be the amount of programs installed.) Then again, It is still faster to boot than my laptop. The other downside is that even with the cradle plugged to the adaptor, It will still consume energy from the battery of the unit.
What I have done to my athena may not be new to most people but I would like to hear from other people what attachments or modifications they have done to make their athena more useful and powerful. In this way, we can all benefit from these ideas. Thanks!
Thanks!
yetdy said:
Guys,
I bought a cradle from ebay (leeonline) because I cannot get a 4 in 1 adaptor from HTC. I tried using the vga-out (17 inch CRT Monitor), rca video out (our Television Set), Brandless USB hub, Generic/standard USB Keyboard and Generic/standard USB Mouse on it all at the same time. Everything works.
Now, I really no longer bring my laptop to work. My athena is all I need for Word Processing, Spreadsheets etc. There are quirks though. Sometimes, the mouse stops working or the athena hangs. (It may be the amount of programs installed.) Then again, It is still faster to boot than my laptop. The other downside is that even with the cradle plugged to the adaptor, It will still consume energy from the battery of the unit.
What I have done to my athena may not be new to most people but I would like to hear from other people what attachments or modifications they have done to make their athena more useful and powerful. In this way, we can all benefit from these ideas. Thanks!
Thanks!
Click to expand...
Click to collapse
I used to do that, but the novelty wore off eventually. Now i just bring in a mini notebook. It's easier than carrying loads of bits about and connecting things to monitors (though that option is still there if necessary).
Pretty cool though if you like your gadgets.
Leoni is correct, however he can always leave the other stuff connected to the cradle and use it sorta like a docking station, but you would need a second cradle for the home TV. I'm glad this thread started because I myself was considering getting one for my TV. However, what should I do about the audio coming from my device (will I still be able to connect audio to my AV receiver)? As far as the 4 in 1 cable I would be able to get to the audio jack on the Athena however the down side is that not all USB flash drives would be supported with the 4 in 1 cable. Yetdy can you tell me how you work around getting audio streamed?
I think there are a few ways to stream audio.
#1 S-Video if I'm not mistaken is supposed to stream audio to your TV.
#2 Audio Jack to RCA Audio converters connected directly to the TV or amplifier would also help assumming you are using the 4-in 1 adaptor. Cradle cannot help you out with this option.
#3 Of course there is bluetooth connection which is what I am going to use. Got a bluetooth transmitter and receiver from ebay but is currently busted (bad seller). Another is to get a BT that has a changeable earphone/buds. Change the earphone to an audio jack to RCA Audio jack and follow #2.
Hope this helps.
yes and no
yetdy said:
I think there are a few ways to stream audio.
#1 S-Video if I'm not mistaken is supposed to stream audio to your TV.
****You are mistaken, S-video is video only (the pins are luminance, chroma, ground and something else I can't remember off the top of my head) ****
#2 Audio Jack to RCA Audio converters connected directly to the TV or amplifier would also help assumming you are using the 4-in 1 adaptor. Cradle cannot help you out with this option.
****if it is anything like the one I got from ebay then no, as it covers up the headphones out port from the athena but does not replicate it on the back ! the athena also carries audio out from the same USB connector that you charge it from (this is why the socket on the athena is an unusual/different shape compared to your plug on USB charger) if they had replicated this port propely on the dock then you could have got audio out that way, but the dock connector for that is also wrong (standard USB shaped socket, not the odd one from the athena) ****
#3 Of course there is bluetooth connection which is what I am going to use. Got a bluetooth transmitter and receiver from ebay but is currently busted (bad seller). Another is to get a BT that has a changeable earphone/buds. Change the earphone to an audio jack to RCA Audio jack and follow #2.
****it is feasible to have the athena transmit stereo bluetooth to a nearby device !****
Hope this helps.
Click to expand...
Click to collapse
just my 2 pence worth
If you want to play audio on your home theatre speaker, you could also consider the option of plugging an FM transmitterinto the headphone jack, then use your FM receiver to play through your theatre speaker.
That was how I used to play my music in the car, through the car's srereo speakers.
eaglesteve said:
If you want to play audio on your home theatre speaker, you could also consider the option of plugging an FM transmitterinto the headphone jack, then use your FM receiver to play through your theatre speaker.
That was how I used to play my music in the car, through the car's srereo speakers.
Click to expand...
Click to collapse
wont work if the Athena is in the ebay dock/cradle, as it covers up the audio out port, but does not replicate it.
Ice coffee,
Maybe you can share some other options here. You may have other ideas that may be useful to us. I just got my athena last month and cradle last week so I cannot really say with authority what it can and what it cannot do. If you can help us out in maximizing the athena with its cradle, many will appreciate it.
None of the video outputs from the 4-in-1 carry audio, the only options are BT a2dp or the headphones jack. Seems a bit long-winded to me though - I'm sure there are less fiddly mods out there. I just used to use the magnetic keyboard as a stand, slipped a BT keyboard over the top of it and the 4-in-1 for usb hub etc. This left a free audio jack to use as I wished. Seems like the docking station is more of a hindrance than a help.
HTC Advantage
Docking station
Keyboard
Mouse
Hifi Bluetooth A2DP adaptor
USB Hub....
I think my EEE pc is a more convenient device on the whole than the above setup would've been if i'd carried all that with me I wouldn't have had any space to fit my work stuff!
I came accross another docking station for $119.00 USD that has the audio option on the side along with 2 standard USB ports instead of 1. I think it's a bit too pricey, due to the fact that on flebay they do have a2dp stereo bluetooth adapters for like $50 USD. Besides with that and your bluetooth headsets it might still be possible to answer a incoming phone call on your bt headset without having to hear the audio coming from your A/V receiver (considering you left the phone on). Leoni, both options have their own drawback (no powering source with the 4 in 1 cable for all USB storage devices and the inaccessable headphone jack when using the docking station). But anyway I'm going to order the 4 in 1 cable too and see which one works best for me on a day to day use.
as I said the only simple option is to use bluetooth and as tootalk2000 pointed out you can get adaptors on ebay for £25 ish, I suppose the other more complicated option would be to, take your cradle apart and replace the USB connector into the phone with this,
http://cgi.ebay.co.uk/2in1-Audio-US...oryZ3728QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
and then take the other end of this apart and make it fit in your cradle, it would actually be quite easy to do as there is a lot of space in the cradle.
ice_coffee said:
as I said the only simple option is to use bluetooth and as tootalk2000 pointed out you can get adaptors on ebay for £25 ish, I suppose the other more complicated option would be to, take your cradle apart and replace the USB connector into the phone with this,
http://cgi.ebay.co.uk/2in1-Audio-US...oryZ3728QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
and then take the other end of this apart and make it fit in your cradle, it would actually be quite easy to do as there is a lot of space in the cradle.
Click to expand...
Click to collapse
Awwwww shux, someone just gave me some experimenting to go do. I'm ordering one of those jacks today, and hopefully it will come around the same time as cradle. I'll just super glue it to the back portion of the cradle and plug it in externally. Due to the fact that the USB port is still on there you would still be able to sync even when the ear phone jack is still in use.
tootallk2000 said:
Awwwww shux, someone just gave me some experimenting to go do. I'm ordering one of those jacks today, and hopefully it will come around the same time as cradle. I'll just super glue it to the back portion of the cradle and plug it in externally. Due to the fact that the USB port is still on there you would still be able to sync even when the ear phone jack is still in use.
Click to expand...
Click to collapse
lol my thoughts exactly.
Hi I've had an htc HD was looking at HD2 but the TG01 looks a far better option for the amount it costs.
Can someone confirm for me though does this phone have a 3.5mm audio jack - or it that provided only through the converter for the mini-usb ?
if yes to the above is it possible to charge this phone and have a headset connected via 3.5mm ?
reason I want o do this is my car audio has aux in via a 3.5 mm cable and I often used my HD in the car but needed to charge it at the same time.
thanks for any help
jhalliday said:
Hi I've had an htc HD was looking at HD2 but the TG01 looks a far better option for the amount it costs.
Can someone confirm for me though does this phone have a 3.5mm audio jack - or it that provided only through the converter for the mini-usb ?
if yes to the above is it possible to charge this phone and have a headset connected via 3.5mm ?
reason I want o do this is my car audio has aux in via a 3.5 mm cable and I often used my HD in the car but needed to charge it at the same time.
thanks for any help
Click to expand...
Click to collapse
Hi,
The TG01 does NOT have a 3.5mm jack; only the micro-USB port. You can however use a uUSB to 3.5mm adapter perfectly OK. Audio quality is excellent.
It is however limited in that currently you cannot charge at the same time. The uUSB standard anticipates the future availability of an external intelligent adapter to control this type of use (eg. car kit); the chips appear to be available to do this, but as yet no 3rd party devices you can buy.
A practical solution is to use a Bluetooth audio adapter with your own earphones (or to feed the car's Aux input) - something like the Sony Ericsson range. Or simply have a spare battery available.
There is more information here and here about connecting via uUSB.
that's really helpful, thanks for that
Hi All,
Per the discussion of this thread: http://forum.xda-developers.com/showthread.php?t=1367120&highlight=usb+amazon+charger&page=3
I bought this Car USB Outlet Charger: http://www.amazon.com/gp/product/B002F0200Q/ref=oh_o02_s00_i00_details
It charges under AC mode, but if I also connect the 3.5mm jack to my cars speakers there is a high pitched noise that increases as the RPM of my engine increases (for example if I put my car in neutral the sound is at the lowest frequency, and if i step on it the sound shoots up).
If I remove the charger from the phone the noise stops. If I begin playing music the noise also goes away. If I stop any playing music then the high pitch noise will return after a brief (~5sec) period.
It's not a terrible issue because it doesn't interfere with playing audio, but it is an issue if nothing is playing and the car speaker is turned on.
Would appreciate any insight.
Thanks,
DL
I have the same issue. It's not the phone, it's your car. You are hearing the alternator noise through the electrical. I have some friends who are car audio installers and what you have is a most likely a bad ground on the auxiliary port. I've tried with 3 or 4 phones with my car and they all do it while charging.
From what I understand there's 2 ways to fix it. Have an audio Installer open it up and ground it properly. This takes time and could be complicated depending where the fault is.
There's also a magnetic shielding thing tthat you can pass your auxiliary cable through which is supposed to be like $5. I've not tried the simple fix yet. I keep forgetting to ask what iit is exactly.
Sent from my ADR6425LVW using Tapatalk
Well I was thinking it was an issue with the actual charger, not my car...
I've used a blackberry, and itouch before while charging and going to the car audio without the problem (but this was not with the Belkin adapter I linked to).
Just to be clear when you say an issue with grounding of the auxillary port you are referring to the the 3.5mm input, not the cigarette lighter port?
Let me try switching the cigarette port.
Yeah, the 3.5mm port. I've also tried changing chargers and nothing has made a difference.
so what you are saying is the issue is with my 3.5mm jack even though the noise doesnt come through if the charger is disconnected?
I've never had any problems with other devices when charging and playing audio.
Only with this particular usb charger and my rezound.
happens to me sometimes too...I just act like I'm in some kind of spaceship as I zoom down the highway
I'm thinking to buy something like this to power my devices, probably a good investment...
goo DOT gl/s0wO7 (can't post links yet, redirect to amazon for a powerline 200W power inverter)
Had the problem with a Verizon charger, took it back and the new one worked fine.
You could try some snap chokes (ferrite cores) they snap around the outside of the cables you may have seen them on some of your usb cables, they reduce interference
radio shack search "snap choke" they have two sizes that fit around the outside of the cable, 5mm and 3.5mm ... they come two to a package, try using them on the power wire and if that doesn't work try it on your aux output wire, they just snap on. you can snap them off if you want to remove them, you can use more than one on a cable if that helps
This is not a fix all and may or may not work but this is what they are designed for, it at least may cut down the noise some but no guarantee's
Once you search on radio shack, read the reviews on them you will see what some people are using them for, they are about $3.00 for 2 chokes
craigsdocks said:
You could try some snap chokes (ferrite cores) they snap around the outside of the cables you may have seen them on some of your usb cables, they reduce interference
radio shack search "snap choke" they have two sizes that fit around the outside of the cable, 5mm and 3.5mm ... they come two to a package, try using them on the power wire and if that doesn't work try it on your aux output wire, they just snap on. you can snap them off if you want to remove them, you can use more than one on a cable if that helps
This is not a fix all and may or may not work but this is what they are designed for, it at least may cut down the noise some but no guarantee's
Once you search on radio shack, read the reviews on them you will see what some people are using them for, they are about $3.00 for 2 chokes
Click to expand...
Click to collapse
Thank you for the suggestion. I will certainly take this idea into consideration.
I do think the piece is defective, but the amazon seller only offers a return, and it was only 5$, not sure if its worth the hassle.
The charging circuit on your alternator has a bad filter. The whine you're hearing is the AC generated...the frequency corresponds with your RPM. Basically, the rectifier diodes are doing what they are supposed to and putting that AC into the electrical system as pulsed DC, but there are capacitors and chokes that are supposed to smooth the current out so it doesn't stress out your equipment. It's possible the charger you got doesn't have a filter either. Ensuring your equipment has a good ground should help, but it may not fix the sound...you'd have to replace your alternator.
Its ground feedback. Could be anywhere in your car. Could also be the charger but probably not.
I have a similar effect, but fortunately it does go away once I start playing music. I only hear the noise when nothing is playing. I don't engine noise, just static. I know its related to the changing connect since it goes away when I unplug it.
I was thinking about seeing if there is something to impede interference that I can put inline with the cable or on it.
My aux audio was an PAC Audio connection that I installed, and the dock/charger I have is kind of cheap-o, so I figure its just the price of being frugal.
yes thanks all for the advice and feedback.
@ssb13 yes the sound interestingly stops right before any music plays, and then has a short delay before coming back after the music finishes.
I suspect a ground loop isolator would solve your problems.
Here's one from Kensington on Amazon:
http://tinyurl.com/6m58v6s
But there are several other makes that probably would work equally well. Just do a search on Amazon for a ground loop isolator.
Check out the comments on the Kensington one and see if the problems sound familiar.
I have the exact same problem! It happens with both the AC cigarette charger and the usb cable I have connected through my headunit. I have a cheap radioshack stereo cable as the connection between my rezound and the headunit, but when I've used headphones I don't seem to notice it either because the music is too loud to notice it or there isn't any interference. So I'm assuming the interference is caused by a feedback loop since power comes in from the charger and then audio goes out through the headphone jack and back into the car.
car charger noise
I purchased and installed an EMI/RFI suppressor from Mouser. It is a 2-piece ferrite cylinder that fits around the USB cable coming from the car charger/power supply. Unfortunately, it made absolutely NO DIFFERENCE in the noise. It is the same type of suppressor that is sometimes installed by the manufacturer on power supply output cables, so I was hopeful that it would work. Guess I will try looking for a loose ground connection.
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A ferrite ("snap choke," "RFI suppressor") won't do a thing at audio frequencies. You're hearing whine from the alternator. It's worse because you have a ground loop - the phone is grounded by both the charger and the audio jacks. It's probably worse when no music is playing because the phone then turns off the output amplifier, making the output a high impedance and letting the noise be heard due to the ground loop. A ground isolator in the audio line will probably help, but may not completely eliminate, the noise. Why not get a Bluetooth audio adapter for your car?
Ground loops suck, at home they can be fixed by breaking off the grounding pin on a power strip and using that. But you can't do that in your car.
Hello!
I recently picked up a pixel 6, very happy with it so far except for the fact that my car is too old for the bluetooth to carry music to the radio.
I was wondering if anybody has managed to find a type c to 3.5mm cable that works? I have tried a type c to 3.5mm adaptor and it doesn't work, I think I need a straight type c to 3.5mm cable instead of an adaptor?
Before anybody asks, I have an fm transmiter but not really enjoying the experience between static or the bluetooth getting confused with the car itself.
I don't see why a USB-C to 3.5mm adapter shouldn't work. Try finding one on amazon that specifically advertises use in cars. It could be possible that the one you have is incompatible, manufacturers tend to make adapters that only work in specific circumstances.
You need an active adapter with integrated DAC (digital to analogue converter). Passive ones will not work. You better get the google cable if available. Apple one works but is too quiet in android. In fact any active cable should work.
Thank you both.
I have seen this one on Amazon, this is what I need I guess?
https://www.amazon.co.uk/KOOPAO-Adapter-Headphone-Stereo-Compatible-Grey/dp/B07Z3TRJKS/ref=sr_1_4?crid=VG53YFREW7S7&keywords=Type+C+to+3.5mm+Stereo+Audio+Cable&qid=1641755818&sprefix=type+c+to+3.5mm+stereo+audio+cable%2Caps%2C84&sr=8-4
I use this one:
https://smile.amazon.com/gp/product/B08Y7YXHSB/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
An alternative if you have 12v power in your car is using a USB Bluetooth to 3.5mm device like this one.
Hagibis Bluetooth Receiver Bluetooth 5.0 Adapter Hands-Free Bluetooth Car Kits AUX Audio 3.5mm Jack Stereo Music Wireless Receiver for Car Speaker Home Built-in Microphone (U3-Grey) : Amazon.com.au: Electronics
Hagibis Bluetooth Receiver Bluetooth 5.0 Adapter Hands-Free Bluetooth Car Kits AUX Audio 3.5mm Jack Stereo Music Wireless Receiver for Car Speaker Home Built-in Microphone (U3-Grey) : Amazon.com.au: Electronics
www.amazon.com.au
That way you can still be wireless and have Bluetooth in an older car, without having to deal with those hit or miss radio adaptors
I have this issue since using the Galaxy S21, the way I fixed it, start playing music on the phone speaker, then connect the cable, and it will start working, it happens all the time, that why I bought a cheap Bluetooth receiver from Walmart, best $8 I've spent in years.
cervantesjc said:
I have this issue since using the Galaxy S21, the way I fixed it, start playing music on the phone speaker, then connect the cable, and it will start working, it happens all the time, that why I bought a cheap Bluetooth receiver from Walmart, best $8 I've spent in years.
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I thought to do the same but the phone shows that the connected device is not supported
neptun2 said:
You need an active adapter with integrated DAC (digital to analogue converter). Passive ones will not work. You better get the google cable if available. Apple one works but is too quiet in android. In fact any active cable should work.
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Just to clear up what that actually means for OP: a passive adapter will work only on USB-C ports that are able to route an *analog* signal. These are fairly uncommon -- most USB-C ports are digital only.
The nice thing about digital output is that you get to control the sound quality by selecting a USB-DAC of a quality that meets your needs, instead of being limited to whatever cheap thing they built in to the phone.
Physically, you can't even tell the difference any more. While USB-DAC's used to always involve a "big ugly box", the circuitry has shrunk these days to small enough to fit into the ends of the dongle.
The headphone adapter sold by Google is an example of this, its a USB-DAC, but shows no sign of containing any significant components besides the connectors.
I tried one that came with an old Motorola phone and it did not work, but Google sells one. They should be able to confirm if it works before you order it
https://store.google.com/product/usb_c_headphone_adapter?hl=en-US
I've personally tried 3 different ones that have worked for me, the first one was from an old Motorola phone, the second one, was one that I bought at an airport, I believe the brand is Moshi, and the third one was coming from a one plus phone. They all worked by playing on phone speaker and then plugging it.
cervantesjc said:
I've personally tried 3 different ones that have worked for me, the first one was from an old Motorola phone, the second one, was one that I bought at an airport, I believe the brand is Moshi, and the third one was coming from a one plus phone. They all worked by playing on phone speaker and then plugging it.
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Which Moto phone? My Moto Z(2) Force one gives an error message that the audio device is not supported.
chaimav said:
Which Moto phone? My Moto Z(2) Force one gives an error message that the audio device is not supported.
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It is the moto Z2 Force, I've used it a couple times, and I had no issues.
cervantesjc said:
It is the moto Z2 Force, I've used it a couple times, and I had no issues.
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It works on your Pixel 6? Maybe mine is defective??
This discussion is very interesting. Generally pixel 6 (and previous pixels also) do not send analogue audio signal to the usb type c port hence passive converters from type c to 3.5 mm do not work. You need active converter with integrated DAC (digital to analogue converter) in it so that the digital audio from the usb type c port is transformed to analogue signal and sent to the headphones or whatever else. Every phone though has integrated DAC in the chipset because otherwise it would not be able to drive its own speakers with analogue signal. When i tried to connect my passive DAC adapter from oneplus 7 phone i got error on the pixel 6 that cable is not compatible. It is possible if you play something through the speakers analogue signal to also be copied towards the usb type c port and this way to trick passive adapters to also work but this need to be tested. I think that i still have the passive adapter somewhere and will test these days if i find it.
neptun2 said:
This discussion is very interesting. Generally pixel 6 (and previous pixels also) do not send analogue audio signal to the usb type c port hence passive converters from type c to 3.5 mm do not work. You need active converter with integrated DAC (digital to analogue converter) in it so that the digital audio from the usb type c port is transformed to analogue signal and sent to the headphones or whatever else. Every phone though has integrated DAC in the chipset because otherwise it would not be able to drive its own speakers with analogue signal. When i tried to connect my passive DAC adapter from oneplus 7 phone i got error on the pixel 6 that cable is not compatible. It is possible if you play something through the speakers analogue signal to also be copied towards the usb type c port and this way to trick passive adapters to also work but this need to be tested. I think that i still have the passive adapter somewhere and will test these days if i find it.
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I tried an adapter from a Oneplus 6 (if memory serves) and I had the same problem, hence the thread
Given the one from Google looks just the same I am apprehensive to buy it until I am 100% certain
Today DAC circuits are so small that it is easy to integrate these into the usb type c part of the cable. There is no way to tell if cable is active or passive only by looking at it anymore. Google cable should work fine. Alternatively you can try the trick with first playing through the speakers and then connecting the old oneplus 6 cable and see if that will make it work. ne side note - don't buy the apple usb to 3.5 mm cable. It has very low volume on android (works properly on ios and windows). Tested it myself.
neptun2 said:
This discussion is very interesting. Generally pixel 6 (and previous pixels also) do not send analogue audio signal to the usb type c port hence passive converters from type c to 3.5 mm do not work. You need active converter with integrated DAC (digital to analogue converter) in it so that the digital audio from the usb type c port is transformed to analogue signal and sent to the headphones or whatever else. Every phone though has integrated DAC in the chipset because otherwise it would not be able to drive its own speakers with analogue signal. When i tried to connect my passive DAC adapter from oneplus 7 phone i got error on the pixel 6 that cable is not compatible. It is possible if you play something through the speakers analogue signal to also be copied towards the usb type c port and this way to trick passive adapters to also work but this need to be tested. I think that i still have the passive adapter somewhere and will test these days if i find it.
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It would need to be physically wired together like that, which it is definitely not.
It would probably also need a second DAC built in, because there are only so many speakers you can drive with the built-in. That's why some phones are advertised as "dual DAC".
Got Pixel 6 usb-c to 3.5 mm one direct from Google...works great.
jelive said:
Got Pixel 6 usb-c to 3.5 mm one direct from Google...works great.
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Is this for a car aux port or for earphones you use it for?