Develop Bugs

HTC Desire - USB audio output possible

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/

What happened to the TV-OUT ?

One of the most things that amazed me in Galaxy S II .Is the ability to output to HD/SD screens but today i've bought a 3.5m to RCA cable then plugged it in but there was no image and no option for TV-OUT !
So where is the TV-OUT exactly ?

Really, you did what?
I don't know how you could expect a video signal from an audio port. The thing you are looking for is the MHL Adapter (USB to HDMI) which isn't on the market right now (June most likely).

MoD85 said:
Really, you did what?
I don't know how you could expect a video signal from an audio port. The thing you are looking for is the MHL Adapter (USB to HDMI) which isn't on the market right now (June most likely).
Click to expand...
Click to collapse
well actually the first sgs had tv-out from the 3.5mm port, as well as some nokia models, my dv cam has the same so its not impossible, but i find it strange that more people don't know that the sgs2 has the MHL adapter, see threads like this popping up all over

I'm surprised people are largely unaware of this too.
I really need the MHL cable, I used my Nokia 3.5mm TV Out cable a lot with my SGSI, really looking forward to being able to output HD content with the SGSII !!!

MHL was added, so tv out was removed.
photo editor was added, so adjustable saturation, sharpness, and brightness was removed.
video editor was added, so ability to pause while recording video was removed.
Thats the Wonder of Samsung~

Does anyone know if a non-samsung specific MHL cable would work with the SGS2, same as generic USB on the go cables work ok?

and yes, with the release of netflix today, and newly discovered "TV Shows Stream" app, i have to use my old sgs..
i wonder if software can fix this, or if hardware is missing.. someone should look into this

Its a standard, so yes, a non-Samsung one should work (only reservation for me is that GSMarena say that this one only works when a charging USB cable is connected to the adapter, so if a non-Samsung one didn't have a charging input it may not work).

MHL is just another way of saying HDMI-out !
I'm asking about the SD output that uses RCA connectors to plug into TVs.

Yep, I know what you're asking, it doesn't work (several of us have tried).

your one of those many people who don't really know what they are buying when they buy it, always a mistake. You need to do your homework before you waste any more money my friend.
Its all about the MHL port dude....

stoolzo said:
your one of those many people who don't really know what they are buying when they buy it, always a mistake. You need to do your homework before you waste any more money my friend.
Its all about the MHL port dude....
Click to expand...
Click to collapse
thats not true at all.. there were no reviews of this phone before it came out, and thats like saying 'oh you expected mp3 support?' yes ofc we did, isn't it a given?
will mhl be able to interact with rca at all? or are all tvs pre 2010 useless now?
Sent from my GT-I9100 using XDA App

but there is someone test it and said that can tv out via 3.5 jack (mirror) http://forum.xda-developers.com/showthread.php?t=1024557

which version of s2 do you have？korean version or uk version？

zoneking said:
but there is someone test it and said that can tv out via 3.5 jack (mirror) http://forum.xda-developers.com/showthread.php?t=1024557
Click to expand...
Click to collapse
I believe that person was discredited later though.
In any case they are mistaken, because myself and several others have confirmed this is NOT working with the SGSII.

Sorry, wrong post

soraxd said:
thats not true at all.. there were no reviews of this phone before it came out, and thats like saying 'oh you expected mp3 support?' yes ofc we did, isn't it a given?
will mhl be able to interact with rca at all? or are all tvs pre 2010 useless now?
Sent from my GT-I9100 using XDA App
Click to expand...
Click to collapse
There has been plenty of info floating around about this phone prior to release and on release day, if I and plenty of other people new about this and you didnt then as I said before you didnt do your homework
the MHL port will work with all tv's with HDMI ports, however it will only charge your phone via this port with new TV's with MHL compatible ports.

@ stoolzo
what about those TV'S with no HDMI ports.........???

bpratap said:
what about those TV'S with no HDMI ports.........???
Click to expand...
Click to collapse
Join the 21st century and buy one that has?
seriouslly hdmi has been out for years and it is the norm on all TV's. That would be like having an argument about scart if your TVis 20 odd years old?

Need this cable: Micro USB to 3.5mm & USB splitter

Dear awesome community,
For the past month or more I've been trying to find a place where they sell Mirco-USB to 3.5mm/USB cables, but I have come to no success whatsoever!
Is such cable impossible to make? Or am I just looking in the wrong places.
Check out the attached picture that I've created to show what I need and mean.
It looks simple, right? Now, I would love to get one of these at any price.
Help me!

Dear awesome user.
The practical application of this would be ?

blobotorian said:
Dear awesome user.
The practical application of this would be ?
Click to expand...
Click to collapse
Well, instead of having two wires coming out of my Note (Top and bottom) while I'm driving, a cable like this well have only one wire coming out from under the phone, cutting on clutter and annoying wires.

must be out there
heres something similar but is mini usb which is no good.
http://www.ebay.co.uk/itm/2-1-MINI-USB-3-5MM-JACK-MINI-USB-HTC-ADAPTER-/260655181793

indie said:
must be out there
heres something similar but is mini usb which is no good.
http://www.ebay.co.uk/itm/2-1-MINI-USB-3-5MM-JACK-MINI-USB-HTC-ADAPTER-/260655181793
Click to expand...
Click to collapse
Shouldn't a micro-usb to mini-usb converter work? IF it supports audio over usb that is
Sent from my Optimus 2X using xda premium

hobs0n said:
Shouldn't a micro-usb to mini-usb converter work? IF it supports audio over usb that is
Click to expand...
Click to collapse
That's totally proprietary. The phone that that is made for probably doesn't even have a 3.5mm jack.

biggy83 said:
Well, instead of having two wires coming out of my Note (Top and bottom) while I'm driving, a cable like this well have only one wire coming out from under the phone, cutting on clutter and annoying wires.
Click to expand...
Click to collapse
Well.. sorry to be a troll. However, you started this thread conveniently assuming that Headphone output through MicroUSB port of Note will work? Its not an HTC phone which has headset support.
May I know the reason for your ASSUMPTION that it would work even if you get the cable?

Your best bet for a single plug into your phone would probably be to use an MHL>HDMI adapter, and then get another adapter to convert from HDMI audio to 3.5mm.
That would be rather clunky though. HDMI > Anything (that isn't DVI) converters are going to run you at least about $40 for a start, and they aren't small either (probably not much smaller than the phone itself .) And they are externally-powered, so you'd need to provide power to both the MHL dongle and the HDMI converter, so it'd be super untidy.
You could do it though.
But you're probably better off using Bluetooth.

Prankey said:
Well.. sorry to be a troll. However, you started this thread conveniently assuming that Headphone output through MicroUSB port of Note will work? Its not an HTC phone which has headset support.
May I know the reason for your ASSUMPTION that it would work even if you get the cable?
Click to expand...
Click to collapse
My assumption comes from the fact that there is a "docking" option in the system settings of the Galaxy Note, meaning that there is support for docking stations and probably audio output for them.
I'm not saying that the Note is the only and first phone to have it, I'm just wondering if there are such cables out there and if such thing possible to be made through Micro USB.
I had an iPhone almost 2 years ago and such cable was available easily and it did really help in my car setup, and since the Note has the same slot setup of my old iPhone I would really like to know if a cable like that is somewhere out there.

Prankey said:
Well.. sorry to be a troll. However, you started this thread conveniently assuming that Headphone output through MicroUSB port of Note will work? Its not an HTC phone which has headset support.
May I know the reason for your ASSUMPTION that it would work even if you get the cable?
Click to expand...
Click to collapse
Well, looking at this car docking station...
(Link not allowed. Search for "Genuine Samsung Galaxy Note Vehicle Dock - ECS-K1E1BEGSTD" on MobileFun)
...it clearly shows a "speaker line out" socket in one of the photos, with only one connector (i.e. the micro USB connector) attaching to the phone.
So it is most certainly possible.

Hmmm, the both the official desktop dock and car dock have a 3.5mm audio out. It seems unlikely that there would be a USB DAC in the docks themselves, which suggests that analogue audio is being piped out the microUSB port on the phone itself.
Of course, the OP could just buy the official car dock to get nice tidy cabling...

If i understood the purpose of this cable, it would be:
For example:
My car supports audio input so the purpose of a cable like this would be to stream music to my car audio system and recharge de phone like a all-in-one right?

gordonshowers said:
Well, looking at this car docking station...
(Link not allowed. Search for "Genuine Samsung Galaxy Note Vehicle Dock - ECS-K1E1BEGSTD" on MobileFun)
...it clearly shows a "speaker line out" socket in one of the photos, with only one connector (i.e. the micro USB connector) attaching to the phone.
So it is most certainly possible.
Click to expand...
Click to collapse
Exactly! I found out about this dock yesterday and I'm still wondering why isn't anything like of what I suggested earlier available? How come now one asked about this before!

zylor said:
If i understood the purpose of this cable, it would be:
For example:
My car supports audio input so the purpose of a cable like this would be to stream music to my car audio system and recharge de phone like a all-in-one right?
Click to expand...
Click to collapse
That is exactly what I want!

Very Interested in this as well. OEM dock wont work with a case. So this would be a great alternative paired with a car cradle such as this.

biggy83 said:
Dear awesome community,
For the past month or more I've been trying to find a place where they sell Mirco-USB to 3.5mm/USB cables, but I have come to no success whatsoever!
Is such cable impossible to make? Or am I just looking in the wrong places.
Check out the attached picture that I've created to show what I need and mean.
It looks simple, right? Now, I would love to get one of these at any price.
Help me!
Click to expand...
Click to collapse
This:
+
This:
$7 + Shipping

I too really want one of these.
It is obviously possible as the destop & car dock do this.
The only way is, for someone with some electronics knowledge to pull one of these apart to see how its done. It would be interesting to see if it is straight audio out, or if there is a "Digital to Analogue Converter in there"

http://www.ebay.com/itm/Samsung-ET-...&otn=3&po=LVI&ps=63&clkid=5051243939125627988
This might do the trick in the unlikely case that Note's microusb outputs audio. Tough I'm really interested in knowing for sure if the Galaxy Note microusb pumps line level audio.
Judging by the price of the desktop dock i wouldn't bet my money on the idea that it has not a dac. I

Use Bluetooth.

maybe at usbfever.com or dealextreme.com
---------- Post added at 07:41 AM ---------- Previous post was at 07:39 AM ----------
http://www.cablejive.com/ maybe

[Q] Who here is using a DAC & MHL? [EDIT - SOLVED - USE USB OTG INSTEAD]

I'm not an "audiophile", but I probably have more critical ears than most when it comes to quality sounds. And the GSIII isn't impressing me like I hoped it would. So I'm looking to squeeze as much out of the GSIII experience as possible, while also getting a good music experience.
So, I ditched Bluetooth and finally got USB audio when docked (thank you, CM).
But still not really impressed. Now I'd like to try these DAC things. But I have zero experience with these.
What I want is to store all my 320kbps MP3's and my FLAC's on my phone. And be able to hook my phone up to my car stereo, garage stereo and home stereo's.
One thing that concerns me is the car experience. How do you guys handle things like call audio and system sounds and GPS navigation voice?
Is it like with Bluetooth & USB audio where you hear everything without having to change inputs?
So if I plug my phone into an MHL and plug that into an HDMI to digital audio converter and plug that into a DAC and plug that into my car stereo's 3.5mm or stereo RCA input, I know that I'll get great/better music (right?!?).
But will I also get call audio and system sounds and navigation voice through that same DAC input to the car stereo? Or will I have to change an input for this to happen?
edit: Forgot to mention that I have no interest in video output at all. All I want is to get digital audio out of my phone! And I'm running a CyanogenMOD hybrid ROM.
edit #2: Oh snap, what is this USB OTG thing? Looks like something I need to research. Could be a way of getting digital audio out of phone without messing with some of the other crap.
http://www.head-fi.org/t/595071/android-phones-and-usb-dacs/270#post_8660606
EDIT #3: Yep, looks like a USB-OTG is all I need to connect my phone to a DAC. See attached pic.
Now just need to research and figure out if there is a way to charge the phone at the same time.
Edit #4: Kk, it looks like you can plug a DAC into your phone and have the phone also charge at the same time. This thread talks about it and also points to the $6 MHL adapter that is capable of doing this:
http://rootzwiki.com/topic/30615-can-you-charge-usb-host-mode-simultaneously/page__st__60
edit #5: Found a USB OTG cable with Y-cable to charging, for sale here in the USA for just $4 more than the Chinese folks. I just ordered it.
Now to buy a DAC (found a FiiO E7 on local craigslist for $35).
http://www.ebay.com/itm/Micro-USB-H...100776?pt=PDA_Accessories&hash=item25771bcda8

Check this thread too.

annulation said:
Check this thread too.
Click to expand...
Click to collapse
Wow, I could have saved my googling skillz by simpling reading that one thread. Wish I'd found it sooner. Thanks for posting the link. :good:

[Q] USB OTG host mode for digital audio out

I have been searching here and at Head-fi, and I cannot find an answer to my problem. I cannot seem to get sound out from my S4 over my OTG cable. I have a DAC/Amp that many have trued and report that my DAC/Amp is plug-n-play, no mods, no other apps needed. I have used this DAC/Amp to get digital audio out from my Galaxy Note 10.1, again totally plug-n-play. Here is the link to the cable I bought - is it possible that this might be the wrong cable somehow? I have tested this cable and it does work with a USB thumb drive on my S4. I also looked up and found one post that said to enable digital audio out by going to settings-my device-accessory and checking the "audio output mode" box. Didn't work. I tried making sure I turned on the system sound, etc. Nada. Where do I go from here? I have been on the thread that lists all the DACs and DAC/Amp that work with all the various Android devices, and my my and my device (Leckerton UHA-6S mk II) are on the list, and I have been on threads where people are using the combo I have. Please help! I would love to know what I am doing wrong/missing/defective so I can get this working. Thanks!!

Is your kernel stock? I had to revert back to stock kernel from ktunez in order for OTG to work with my external DAC.

My kernel is stock.

bump

FIXED!
We are fixed!
It was the obvious thing. The cable was defective. I just got two other cables from Amazon (very cheap). They both work perfectly immediately. The are both from different vendors, but they are both the exact same cable. They are different from the original in one way: the micro USB portion that plugs into the Galaxy S4 is much longer than the defective one. I don't know if that means anything, but there it is. Thanks to everyone for your help, especially DanBa who took extra time and effort to help me. Thanks!