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Hi Devs,
first of all, sorry for starting a new thread, but searched the forum and didn't find exactly that.
Like I've read, there is no audio over USB support built-in to our mighty Desire.
I tried a few different microUSB to 3.5mm jack adapters from ebay - even one declared as for HTC Desire. Checked the usb-pins-assignment also and it seems that HTC hasn't built in (or turned off) that function in opposite to some other manufacturers.
So will it be possible to write a rom or a kernel, that'll support that?
If it is possible, I would appreciate a few hints what I'll have to do, to get this thing working!
Thanks in advance!
Can I know why you need that? Is it for A/V out?
brianius said:
Hi Devs,
first of all, sorry for starting a new thread, but searched the forum and didn't find exactly that.
Like I've read, there is no audio over USB support built-in to our mighty Desire.
I tried a few different microUSB to 3.5mm jack adapters from ebay - even one declared as for HTC Desire. Checked the usb-pins-assignment also and it seems that HTC hasn't built in (or turned off) that function in opposite to some other manufacturers.
So will it be possible to write a rom or a kernel, that'll support that?
If it is possible, I would appreciate a few hints what I'll have to do, to get this thing working!
Thanks in advance!
Click to expand...
Click to collapse
Its not possible to send analog audio signal over the usb since its a standard usb plug. Only the old htc phones with extUSB had audio, but its was a bigger plug with more pins.
On that note i dont get why you want to get audio from there, when theres a nice 3.5mm jack socket on the top of the phone.
mr.r9 said:
Can I know why you need that? Is it for A/V out?
Click to expand...
Click to collapse
Thanks for your quick answers!
Yes, since there are no music docks for desire I built my own and it has to be possible, other phones with microUSB have that function - why not ours?
I know the old extUSB plug from my magic, there it is no problem. But there must be a way to get this working! I think it is only a software and/or driver issue.
If you'll get a music dock you'll have to plugin the phone + jack everytime? ? ? Look on ebay there are a few universal docks over microUSB, but not working for the nearly best and most sold android phone on market?
Pls give me some hints if there is a way to do that - everything is possible!
Sent from my HTC Desire
brianius said:
Pls give me some hints if there is a way to do that - everything is possible!
Sent from my HTC Desire
Click to expand...
Click to collapse
Umm, well not really. Because who says that the USB port of your phone is connected the right way internally to actually SEND data over the cable/dock.
I have no idea on how to do it. Thats just what I think, but with Android, a LOT is possible
prodygee said:
Umm, well not really. Because who says that the USB port of your phone is connected the right way internally to actually SEND data over the cable/dock.
I have no idea on how to do it. Thats just what I think, but with Android, a LOT is possible
Click to expand...
Click to collapse
YEAH IT IS!
On Nexus one they built in extra pins for docking and audio over that works like a charm.
I'm having a few adapters microUSB to 3.5mm jack for Motorola,Samsung,Nokia...phones from ebay, but not one reaction from Desire
Maybe the adapter for Desire needs a Digital-to-analog converter to get analog audio out of the microUSB port.
But no technical details over that from HTC - does anyone know more about the microUSB connections on our Desire? Tried to get a technical manual for Desire, but no chance on google...
If there is no other solution, I'll have to disassemble my expensive Desire to get a view on connections and maybe some hints which IC is managing the microUSB.
Does any dev know what would be possible by modding a kernel or rom?
Thanks in advance!
mr.r9 said:
Can I know why you need that? Is it for A/V out?
Click to expand...
Click to collapse
im also looking for something like this, though i want digital-audio out. for example in my car, plug and play so i get spotify from my usb to my stereo and able to control spotify from my stereo. there is no problem for this if you use iphone, though id like to be able to do it on my htc.
any solution?
Ability to stream out the audio through USB would be something nice to have.
There's a guide online on how to splice a USB and 3.5mm cable to the Apple USB cord so that you can charge and play audio on ipod accessories, as long as you don't mind having USB and audio plugged in at the same time. http://www.erwanmace.com/2012/07/ipod-dock-android/
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
Does anyone know if it is possible to get an LOD for the Epic 4G Touch?
In case you have no idea what this means, here's your lesson in audiophile gear for the day:
Line Out Dock (a.k.a. LOD), n.: a cable commonly used on audio devices which creates a "line out" similar to a headphone jack but with no volume control and often better analog signal quality. This is useful in that it allows a user to bypass the headphone jack of a device and run the audio signal straight into an external amplifier. This is often done when an audiophile-type individual has headphones which benefit from a audio source with greater output power than a portable device typically provides.
Examples of LOD's:
Apple iPod/iPhone
Sansa Fuze
Bazirker said:
Does anyone know if it is possible to get an LOD for the Epic 4G Touch?
In case you have no idea what this means, here's your lesson in audiophile gear for the day:
Line Out Dock (a.k.a. LOD), n.: a cable commonly used on audio devices which creates a "line out" similar to a headphone jack but with no volume control and often better analog signal quality. This is useful in that it allows a user to bypass the headphone jack of a device and run the audio signal straight into an external amplifier. This is often done when an audiophile-type individual has headphones which benefit from a audio source with greater output power than a portable device typically provides.
Examples of LOD's:
Apple iPod/iPhone
Sansa Fuze
Click to expand...
Click to collapse
I googled epic 4g touch dock:
http://www.samsung.com/us/mobile/cell-phones-accessories/EDD-D1D9BEGSTA
Samsung HM3700 Stereo bluetooth headset
I bought the Samsung HM3700 Stereo bluetooth headset which comes with one. I am sure Monoprice.com has one or even Ebay; but if it's worth 24.99 to yah you can buy the headset.
Sort of what I'm after, but not really. I don't want a dock, I want a cable. This is for portable listening on the go with an amp.
Thanks!
Gorguts said:
I bought the Samsung HM3700 Stereo bluetooth headset which comes with one. I am sure Monoprice.com has one or even Ebay; but if it's worth 24.99 to yah you can buy the headset.
Click to expand...
Click to collapse
Not sure I see what you're talking about; our just looks like a bluetooth headset to me.
The pinout for micro usb is the same across phones, right? If so, this should work.
fonseca898 said:
The pinout for micro usb is the same across phones, right? If so, this should work.
Click to expand...
Click to collapse
Wow...if this works...
Does it mean I can listen to pandora on my phone and stream it through this LOD into my cars aux ports for superior sound quality?!
fonseca898 said:
The pinout for micro usb is the same across phones, right? If so, this should work.
Click to expand...
Click to collapse
That is quite interesting and just might work.
What remains to be seen is whether or not that provides superior sound quality to the headphone jack. It just occurred to me that the Samsung car dock (which I have) is essentially the same thing as that USB micro to 3.5mm jack plug unless the phone has software which can recognize the difference. In this case, volume would still be controlled via the phone. I might have to test and see if I can hear a difference in sound quality, but I doubt it (or at least doubt that the dock will be better.)
I have both the official samsung desk dock, and car dock. They both have 3.5mm audio line out. Isn't that what you're asking for? I didn't know it had a "fancy" term though..
Edit: Maybe it's not exactly what you're asking for. I think you're hoping to get line level straight out of the DAC, which I don't think is possible with the SGSII. The audio dock line out is around the same quality as the headphone jack (as far as my "non audiophile" ears can tell) and it's certainly volume-controlled by software. Anyhow, some of the new custom ROMs out have beats audio and dspmanager built-in, which go a long way into tweaking the way audio exits the device. You may want to look into that.
Yeah the desk dock is still less portable than I'm looking for. I have DSP Manager on my phone and it helps to some extent. Guess I'm just stuck with the headphone jack. Thanks!
im pretty sure you need usb-host first, i think a usb dac has been used back on the nook color w/cm7 but then you lose portability and all that.
related?? http://code.google.com/p/android/issues/detail?id=24614
hi, I've been going crazy looking for a budget videocamera with an external microphone when I thought about doing it with my smartphone.
what I need is to record singing classes so i'm not looking for a great video quality but i need a great audio.
I read some old thread about phones and external mics but i guess I'm not even close to get what I want. searching in google looks like external mics for smartphone don´t exist.
Does anybody can help me on this?
thanks in advance...
well, looks like I found what I was looking for. the mic is the edutige eim 003 and is easily pluggable on most of the android and ios devices...
this is the link on amazon. you will find as well a couple of reviews on youtube. being from Europe the cheapest price would be 48€ but in us it's worth 28€. enjoy
It's also possible to make an adapter with the semi-standard iPhone compatible 4 pin headphone / mic plug on one end and separate headphone and microphone jacks on the other. I made one with just some resistors, a capacitor, and audio cables that now lets me use dynamic microphones (or even weak line in signals) with my iPhone instead of the usual condenser microphones.
Is it posible get line-out low signal outpout from tablet ?
i want use it in my car with some high end components so i need somehow quality signal
Not headphones ,and i dont know if MHL to A/V give what i want.
[email protected] said:
Is it posible get line-out low signal outpout from tablet ?
i want use it in my car with some high end components so i need somehow quality signal
Not headphones ,and i dont know if MHL to A/V give what i want.
Click to expand...
Click to collapse
Well,
I'm using the Samsung universal tablet dock with audio out. I haven't tested it heavily, but I am getting around line level running into my Rotel integrated. The tablet does still alter the volume. I'm not sure what the dac is used in the dock.