Database Users

[Q] Audio via USB?

Is it possible to get audio playing over the USB port from the HD2?
With the iPhones, the audio market have a line out dock which takes the proprietory plug the iPhone uses to charge and sync and outputs to a 3.5mm jack. This bypasses the internal amplification circuitry so that you can use an external amplifier for a better signal to your earphones/headphones/speakers of choice.
I was wondering if it was possible to do this with the HTC HD2.
Can anyone offer any insight?

I'm no expert however from what I know, I think the iPhones dock connector has more than just regular USB connections inside. It may have some audio connections and possibly even a video connection. So I'm guessing the audio actually gets sent through that rather than via USB.
However, I imagine that you could send audio via USB but at a guess I think it might require a processor is some description at the other end to take the audio and send it to the speakers.
This may be totally in the wrong direction but I believe it is probably along these lines
Sent from my Nexus S using XDA App

It's most certainly a question for those of the XDA Community who know the ins and outs of the USB port and what it can actually do.
I'd love to think that it is possible. Whilst I'm happy with the output of the HD2 sound quality-wise, the mere thought that it 'could' be better intrigues me.
Can anyone help explain if it can be done, how it can be done or if it can't be done, why it can't be done?

Just to get a bit more info, where were you thinking the USB audio would be used? Like through a PC and then to it's speakers, or do you have some MicroUSB audio dock thing? I imagine whether it is possible or not depends on where you want the audio to go to.
I imagine if it was through a PC then it would be a matter of software, and therefore be possible. But I don't know about a dock situation.

Jonathon Grigg said:
Just to get a bit more info, where were you thinking the USB audio would be used? Like through a PC and then to it's speakers, or do you have some MicroUSB audio dock thing? I imagine whether it is possible or not depends on where you want the audio to go to.
I imagine if it was through a PC then it would be a matter of software, and therefore be possible. But I don't know about a dock situation.
Click to expand...
Click to collapse
From the HD2's USB port into a portable amplifier (3.5mm jack) then onto a pair of IEM's.
I guess it is also plausible that it could go from the HD2's USB port to a USB DAC/Amp then out onto a pair of IEM's but that kind of DAC/Amp doesn't come cheaply and then there's a whole driver issue to contend with, possibly.
This is strictly to improve audio in a portable capacity, as iPhone users seem to have been able to do for quite some time.

Alright then, beyond my scope mate sorry we need other developers to check this out I think.
Anyone?
Sent from my Nexus S using XDA App

Thanks Johnathon.
Hopefully someone else will reply to this. Plenty of views but no chatter.

Yeah, I'm sure you will find someone though! It is the HD2 section after all more than enough devs in these parts
Sent from my Nexus S using XDA App

I do not think it would be, like the DAC isn't it? why not just use the Bluetooth A2DP?

growlye said:
I do not think it would be, like the DAC isn't it? why not just use the Bluetooth A2DP?
Click to expand...
Click to collapse
I do not understand your question and do not see how Bluetooth A2DP would help at all.

Final bump

I know that CyanogenMod9 allows audio out over usb on some phones.
I'm really interested to know too so have asked the Q in the android forum: http://forum.xda-developers.com/showthread.php?p=22920882#post22920882
Fingers crossed...

Bumping
There are many more people interested then it shows here.
I know the following must be in place before USB class audio will work:
ALSA drivers in the kernel
USB host
USB OTG
and if all of that is in, then in theory USB audio should work.
Jelly Bean makes this official, which is nice. but many of us still use CM7, especially Tyween Typhoons, for stability, and it would be awesum if it worked in there, although to be honest I am waiting for the final CM7.2 before I test again.

My Stupid, Useless, N00b Idea! AV Cable.

As some of you may well know.. The Iphone 4 very well adapts to connecting to a TV set using its 30-pin connector one side and AV plugs at the other cable. I was just thinking....
If HDMI is not supported... Would we have an easier way into actually importing some kind of software or some mod into the kernal itself?
Do we even have AV- Mini-USB cable available to our disposal?

albanezi said:
As some of you may well know.. The Iphone 4 very well adapts to connecting to a TV set using its 30-pin connector one side and AV plugs at the other cable. I was just thinking....
If HDMI is not supported... Would we have an easier way into actually importing some kind of software or some mod into the kernal itself?
Do we even have AV- Mini-USB cable available to our disposal?
Click to expand...
Click to collapse
Before anything like that could be used, You would need to get the play into USB host mode

Is that something that I.C.S could present us?

Da22a said:
Is that something that I.C.S could present us?
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Click to collapse
No, you'll need SE to include it in their kernel/kernel source for our play or you'll need some devoted devs to port it from the Arc.
Regards Dousan...

Just a few questions.

Hey I have a few questions which I would appreciate if answered.
1. Can the a500 output to a monitor via dvi? Is there something that would need to be enabled or not. I know it can output via HDMI.
2. Has anyone actually bricked their device to a state in which it cant be recovered, I know sc2k can usually recover the device with the UID, but has anyone got their device completely bricked to the extent in which the only option was warranty replacement.
3. Is anyone developing a way in which to or event bricking or an unbricking tool.
Thank you.
Sent from my A500 using XDA Premium App

M..N said:
1. Can the a500 output to a monitor via dvi? Is there something that would need to be enabled or not. I know it can output via HDMI.
Click to expand...
Click to collapse
Not natively, no. If you can find a device that converts HDMI to DVI signal then you could use that, but I don't know if such a device even exists.

M..N said:
1. Can the a500 output to a monitor via dvi? Is there something that would need to be enabled or not. I know it can output via HDMI.
Click to expand...
Click to collapse
You can get a male HDMI to female DVI adapter for under $2 from Amazon.
http://www.amazon.com/HDMI-Adapter-Plated-Connector-Female/dp/B000FUVNX8
Which you would then use with your mini-HDMI to HDMI adapter.
http://www.amazon.com/HDmi-Cable-Adapter-Hdmi-Mini/dp/B002L5QGQ4/ref=sr_1_5?ie=UTF8&qid=1319286322&sr=8-5
Jeff.

jlary said:
You can get a male HDMI to female DVI adapter for under $2 from Amazon.
http://www.amazon.com/HDMI-Adapter-Plated-Connector-Female/dp/B000FUVNX8
Which you would then use with your mini-HDMI to HDMI adapter.
http://www.amazon.com/HDmi-Cable-Ad...QGQ4/ref=sr_1_5?ie=UTF8&qid=1319286322&sr=8-5
Jeff.
Click to expand...
Click to collapse
Okay I should of said I have the adapter but it doesn't seem to display on my monitor I guess output resolution needs to be changed
Sent from my Desire HD using xda premium

This has been asked several times before.you need a converter box. They are two different types of technology.
Thee also has been a few people that I heard sent there Tablets to acer to get unbricked. Not sure if they talked to seek or not thou.

jlary said:
You can get a male HDMI to female DVI adapter for under $2 from Amazon.
http://www.amazon.com/HDMI-Adapter-Plated-Connector-Female/dp/B000FUVNX8
Which you would then use with your mini-HDMI to HDMI adapter.
http://www.amazon.com/HDmi-Cable-Adapter-Hdmi-Mini/dp/B002L5QGQ4/ref=sr_1_5?ie=UTF8&qid=1319286322&sr=8-5
Jeff.
Click to expand...
Click to collapse
Hi, Jeff.
I actually have tried what you've suggested a while back. While it does allow you to connect, it does not power up the dvi port on the monitor/tv. I think something like what erica_renee or WereCatf are mentioning is needed.
Unfortunately I cannot find this magical device anywhere (Well,,, I only searched a 'little'. No real dedication, sorrrry.). I have an older monitor (dvi) that I would love to run the tab on...

I believe (since you've hooked it up, tried it and it didn't work) that your computer monitor does not support 1080p output from the Acer. I'm not sure, it could even be 720p, but either way it appears your monitor doesn't support that or the frame rate from the Acer.

For some reason hdmi to dvi doesn't work I tried every possible combination on many monitors with various resolution strange tho.
Sent from my SPH-D700 using XDA App

Hmm well hope in the future there may be a way, for the bricking situation I know it'll be pretty much safe with cwm but there may be occurances where it fails.
Sent from my Desire HD using xda premium

Finally Solution to HDMI port (CES 12)

http://www.engadget.com/2012/01/10/analogix-slim-port-technology-lets-you-connect-your-phone-to-you/
Sometimes, the simplest ideas are the best ones, and Analogix Slim Port technology certainly qualifies as both. It's a cabling solution that allows you to mirror what's on your phone or tablet's screen to your TV via microUSB -- instead of needing an extra HDMI or MHL port. Analogix's secret sauce is on a chip embedded in the jack portion of the cable and because it's based on DisplayPort technology, it can connect using HDMI, VGA, or DVI connections. Of course, as an OEM, Analogix won't be selling the cables when they go on sale this summer, but retailers like Belkin and BizLink will probably be put one in your bag for around $20 or $30 bucks.
-engadget
So now we can connect our beloved Play to that TV XD

I think it doesn't work like that... you have to have the tech on your phone (Mobility DisplayPort (MYDP) digital interface) it then allows uncompressed video/audio from a phone over display-port and also allows usb transfer modes
http://www.interconnectionworld.com/index/display/wire-news-display/1578435639.html
It won't work on the play

ff7fan4eva said:
I think it doesn't work like that... you have to have the tech on your phone (Mobility DisplayPort (MYDP) digital interface) it then allows uncompressed video/audio from a phone over display-port and also allows usb transfer modes
http://www.interconnectionworld.com/index/display/wire-news-display/1578435639.html
It won't work on the play
Click to expand...
Click to collapse
i dont get you guys it clearly says it uses the MICRO USB port on the mobile device i mean how much more clearer need it be regardless ive sent an email to analogix and will tell u guys what they say

Why do we have two threads about the exact same thing I dont know
But i'll post the same thing I did over in the other one
Do you think that TV out is just going to magicly work when you plug in USB LOL
FYI your usb port is never outputting video lol. you would have to run some type of program to do it and that will use CPU power
When have you ever plugged usb into your PC and a message comes up "Would you like to mirror image on your screen?"
You guys know the PSP actually had software written for it that allowed USB mirror to desktop and it lagged the device so badly most games weren't playable anymore
Click to expand...
Click to collapse

Hogwarts said:
Why do we have two threads about the exact same thing I dont know
But i'll post the same thing I did over in the other one
Click to expand...
Click to collapse
You do realize that PSP is less than 1/3rd the Xperia PLAY's overall capability, right?
PSP also couldn't handle any form of graphical MMOs.

TLRtheory said:
You do realize that PSP is less than 1/3rd the Xperia PLAY's overall capability, right?
PSP also couldn't handle any form of graphical MMOs.
Click to expand...
Click to collapse
I wasnt aware of that fact
you got a source i can see for my own eyes? thanks
also my points is still valid. the device aint outputting video as it sits now

You guys know the PSP actually had software written for it that allowed USB mirror to desktop and it lagged the device so badly most games weren't playable anymore
Click to expand...
Click to collapse
Thats because it used VNC. VNC lags on anything.

Hogwarts said:
I wasnt aware of that fact
you got a source i can see for my own eyes? thanks
also my points is still valid. the device aint outputting video as it sits now
Click to expand...
Click to collapse
check the spec sheets. Also, notice that the Play has Dev units with HDMI out and they don't lag a little.

A bit off topic, but I don't think I ever posted this while I was analyzing the play for HDMI.
According to the kernel, the Dev plays have this chipset and all Plays have the drivers for it: http://www.analog.com/en/audiovideo-products/analoghdmidvi-interfaces/adv7520/products/product.html
And this can be seen on the Dell Streak: http://www.ifixit.com/Teardown/Dell-Streak-Teardown/3512/2
Now, I tore apart my Play (when I had it), and I can confirm that that chip is NOT on my retail r800i. This means that there is no "hidden" port or some unfilled solderpads that can be used to attach a microhdmi. There is NO support on the retail motherboard for it. You can't even buy the ADV7520 chip because there are no space on the retail motherboard for it.

There's no chip or hdmi port on the play I've watched dissasemblies of all types r800a,x,I
Sent from my R800a using XDA App

There is a solution where you connect to a bluetooth HDMI dongle using your bluetooth and its specific app to stream phone content onto the screen, I think it was mentioned on Engadget but I cannot seem to find the link for it.

Logseman said:
check the spec sheets. Also, notice that the Play has Dev units with HDMI out and they don't lag a little.
Click to expand...
Click to collapse
so your dev unit theory is irrelevant because our plays contain none of the architecture to run this setup with hdmi.
would have to find another solution.

Hogwarts said:
so your dev unit theory is irrelevant because our plays contain none of the architecture to run this setup with hdmi.
would have to find another solution.
Click to expand...
Click to collapse
I don't have a theory, as I don't care one bit about TV output of any kind. However, you mentioned that the PSP wasn't powerful enough to beam out content, which is not a problem in the Xperia Play (or Arc and Neo for that matter).

Why do people keep saying "the play has no HDMI transmitter" if you read the OP, with this cable the HDMI transmitter is built into the jack, the device does not need one
Sent from my R800i using Tapatalk

bubblegumballoon said:
Thats because it used VNC. VNC lags on anything.
Click to expand...
Click to collapse
Pretty sure it didn't
Sent from my R800i using Tapatalk

AndroHero said:
Why do people keep saying "the play has no HDMI transmitter" if you read the OP, with this cable the HDMI transmitter is built into the jack, the device does not need one
Sent from my R800i using Tapatalk
Click to expand...
Click to collapse
FINALLY someone bothers to actually read the goddamed article

So the USB Device registers itself as.. what exactly ?
I mean, the play still has to send it's image to the dongle either way.

HearthC0re said:
So the USB Device registers itself as.. what exactly ?
I mean, the play still has to send it's image to the dongle either way.
Click to expand...
Click to collapse
The adapter is probably accompanied with an app. Although the app would need root acces, atleast I think so.

whilst i think this would be an awesome piece of kit if it works as intended, im a little curious as to how it actually works, afaik the cpu sends its work to the gpu for output, the gpu processes it, and outputs it to the display....so how exactly does the usb port get the information from gpu...maybe easy with root access on one device...but making it work on a wide range of devices would be crazy hard.
im not gonna straight up bash this, because they have said its a vendor agnostic solution, so im assuming they have worked out some technical magic with no downsides to pull this off. I'm all for being proved wrong, i just want to see it in action.

TLRtheory said:
You do realize that PSP is less than 1/3rd the Xperia PLAY's overall capability, right?
PSP also couldn't handle any form of graphical MMOs.
Click to expand...
Click to collapse
First statement is a bit overstated.
By capability the gpu in the PSP has a fillrate of 30 million polygons/s
I believe our Adreno has 52 mil/s
Plus instead of the capability I believe it was the limitation of USB speeds that affected the computer mirroring software.
Sent from my R800i using Tapatalk

Possibilities of USB C on Nexus Devices?

We have seen that on Macbook air 1 USB type C port has been utilized not just for charging but also being used as display port as well using an external adapter.
Will Nexus 6P/5X have such functionality using an additional adapter or directly may be to connect to HDMI TVs or connect OTG drives?

No. Disabled.

OTG should work, HDMI will not. I'm interested to see if the Pixel C has HDMI enabled. I would expect it to.

lensgrabber said:
OTG should work, HDMI will not. I'm interested to see if the Pixel C has HDMI enabled. I would expect it to.
Click to expand...
Click to collapse
It does, and Google even sell a C-HDMI adaptor for that (only listed in the 'works with Pixel' section, though - not the Nexus sections).

Otg works... They confirmed and sell it on the store
Sent from my HTC One_M8 using Tapatalk

Thanks guys for your responses.. but why would they disable HDMI?

ragavbpl said:
Thanks guys for your responses.. but why would they disable HDMI?
Click to expand...
Click to collapse
I guess because of Chromecast
Sent from my LG-D802 using Tapatalk

DaveHTC200 said:
I guess because of Chromecast
Sent from my LG-D802 using Tapatalk
Click to expand...
Click to collapse
I'd be curious if we could re-enable it through root, or if it's a hardware limitation.

ragavbpl said:
Thanks guys for your responses.. but why would they disable HDMI?
Click to expand...
Click to collapse
It's not "disabled", just N6P doesn't have USB Type-C 3.1.

Could you please explain more?

In the Type-C spec (.zip found here http://www.usb.org/developers/docs/) it defines what pins and wires are used for what. In a Type-C port or cable there are 2 dedicated pins/wires for USB 2.0. For USB 3.1 communications there are dedicated shielded twisted pair wires used for high speed communication. To support Display Port/HDMI, the Type-C port switches the use of those high-speed data wires over to that kind of output. (I think they called this alternate mode.) Anyway, the Nexus devices only support the USB 2.0 mode. It is unclear to me which of these is the case, but it basically means that either the USB controller in the phone can't support it, or the physical pins in the port are missing to connect and use those high speed wires. (Or both.)
It is possible it is just disabled in software, but that doesn't quite make sense to me. Why include all the hardware you need to enable USB 3.1 speeds, HDMI output, and a slew of other features such as USB-PD... But simply choose not to enable them? Seems far more likely to me that the lower cost of the USB 2.0 only mode (less complex controller and port) were used instead.
Hope that helps.