(concerns external DACs) Asynchronous USB Data Transfer on Android 5 upwards - Android Q&A, Help & Troubleshooting

please delete this thread I just realised that I'm not allowed to post questions here

berzerk428 said:
please delete this thread I just realised that I'm not allowed to post questions here
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Why so? This forum is even called Android Q&A, Help & Troubleshooting. If it is a question, it is a Q&A (question and answer) and if you need help, it is still part of the forum and if you need troubleshooting it is also part of the forum.

RAZERZDAHACKER said:
Why so? This forum is even called Android Q&A, Help & Troubleshooting. If it is a question, it is a Q&A (question and answer) and if you need help, it is still part of the forum and if you need troubleshooting it is also part of the forum.
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oh ok, I must've misread it then : ) well, here goes..
I am planning to buy a new DAP which can also work as a DAC, and there are actually quite a few Gadgets out there that combine DAPs and DACs into one as some of you might know.
My question now is, is Android 5 Lollipop upwards able to work with External DACs that use Asynchronous Data Transfer? I am asking this because I have heard that Android 5 had USB Audio Playback integrated, which leads me to the (maybe farfetched) assumption that the newer Android OS should also work with Asynchronous DACs, is that possible?
To be a bit more specific, I am thinking about getting a FiiO x5ii in order to use as a standalone DAP now and again, but I mainly wana use the device as an external DAC for my Note 7. In their official forums FiiO says the FiiO X5ii can not be used as a DAC for Android Smartphones because the Smartphone expects Synchronous Data Transfer whilst the X5ii is designed for Asynchronous Data Transfer. Now I know there's an App called USB Audio Player Pro which bypasses the Android OS and allows Asynchronous DACs like the X5 (specifically mentioned in their compatibility list) to function but I rely on ID3 Tags that only Rocket Player can give me.
I have been doing a lot of research on the internet about this topic but I havent found a clear answer yet that would justify spending 350 bucks on a device that might not work for what I intend it to. The alternative would be to just get an Audioquest Dragonfly (which is not a DAP I'm aware of that) because I have read a lot of good things about them and they are pretty small, but I can imagine having a cable stuck from the bottom of my Note 7 with a USB Stick hanging from it can be a bit awkward and unpractical when I walk around having to grab my phone from my pocket frequently in order to rate songs on my screen or whatever.
Any input or thoughts on this would really be appreciated : )

Related

Play Guitar through you phone app for Android?

Hi!
This might sounds silly but do you guys know if anyone is working on something like this for android?
http://www.youtube.com/watch?v=0Nod69aTzsM
An app that makes your phone to a small guitar amp?
The iphone version has been out for a while but i cant find any info on a version for android..
The company behind iRig have been speaking about a android version but i dont think they even have started working on one yet.
It would be a really nice application! To allways be ready to record without setting up the computor and stuff like that ya know, or to just sit in the sofa with earplugs and play some sweet solos and riffs without having your gf whine about the loud music..
Found this dude trying to make something close. http://www.youtube.com/watch?v=sz-9mxWa2VA
Just checking if anyone knows anything?
Best regards and thx for all the awsomeness!
/Patrik
This would be awesome, I would definitely buy it. It's like a Line 6 pod but much cheaper.
I hope they're working on an android version. Android needs better quality apps.
Also, it's more of a multi-effect pedal than an amp. Just letting you know
I actually sent then a message on youtube to see if they were working on one. This is what I got.
This is the Mac/PC version. If you look at our AmpliTube iRig playlist you'll find the iPhone version. We're currently looking at the platform but do not have any versions for Android.
Sent from my Nexus One using XDA App
Yeah, multi-effect pedal.
Imageing all the fine stuff you could do with it!
You could use it as an effect to plug in to your amp. (maby quite alot of effects, if you can make your own sounds. And with new developing you never have to buy a new effect-pedal again.. ).
A strummer for electric guitar in the studio/rehearsal place.
Play with earplugs on the sofa.
and so on...
I'll buy!!
it needs dedicated hardware don't forget (about 10 seconds in on the video)
your phone only has one 3.5mm jack plug...and you need to plug a guitar into it and an amp into it too.
also, what happens if you've got your amp turned up to 11 and then you get a phone call?
d-signet said:
what happens if you've got your amp turned up to 11 and then you get a phone call?
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You'd have to speak through your guitar peter frampton style
These are the components you need...
http://www.youtube.com/watch?v=tNFmDetXs7c
These are the components you need. I've successfully plugged my guitar into my nokia and HTC EVO using this method. Now, for some software that does something cool with the input. Let me know how it works for you.
http://www.ikmultimedia.com/forum/viewtopic.php?f=10&t=553
So maby around the end of the year?
Endombed said:
http://www.ikmultimedia.com/forum/viewtopic.php?f=10&t=553
So maby around the end of the year?
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I've bookmarked that link
I am amazed that this can be done on the iPhone but not on Android.
There is another program called Ghettoamp on the market, though the devloper admits that there is still latency (he records, then processes the sound input). 20ms I think.
paul c said:
I've bookmarked that link
I am amazed that this can be done on the iPhone but not on Android.
There is another program called Ghettoamp on the market, though the devloper admits that there is still latency (he records, then processes the sound input). 20ms I think.
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Why can't it be done for android? This app is really cool.
Sent from my SGH-T959 using XDA App
It should be possible...
Android phones definitely have the processing power to do this. The only real problem is you're input and outputs on your phone, there's really only one... the 3.5 mm jack...
But there's maybe a way around this. And I'm not an engineer or developer or genius of any kind I'm just saying what I think should be at least possible... Everyone knows AD2P Bluetooth right? You could get you're input through it.
You use the microphone of a bluetooth headset, but instead of the microphone, you get your input from you're amp/guitar/whatever... could it be as simple as soldering a headphone jack to the PCB connections on a bluetooth headset? Dunno but let's asume it's possible.
Then you connect your phone to the headset, and you've got input... Great.
The problem now is that I don't know what android does when it has a bluetooth headset AND a normal set of earphones... Does it play from both, does it by default choose, I don't know... Say you still get output from the headphones, you could easily get the output to any speakers, seems rather pointless to use the phone's loudspeaker... This part from bluetooth input to audio jack output will maybe need a modified audio driver or something...
Once you've got input into the phone and output out of the phone, you would like to have some effects and/or amplification right? That's the point isn't it? I know nothing about programming such things but maybe a few developers who do will stumble onto this thread and share their expertise...
Once again it should be possible, but for just anyone to do this it'll be very challenging, more likely and hopefully companies like Gibson or Marshall or Ibanez (their Japanese, and this seems like a Japanese thing to do) for instance will see the need for something like this, and get working on it... If they make something like that and it works well, it'll make a LOT of money... For instance after you've bought this device, they could SELL effects, to be downloaded on a sort of 'plugin-basis'. And once one company does it, all will have some variant of the concept. I know I'd buy this...
Edit: Read about the apparent latency issue that Android has... So I don't know if it's that possible just yet, maybe ICS has bettered this flaw in previous Android versions, one can only hope...
Sorry for refreshing this thread, but I'm curious if there is such app for android available right now?
pietpodlood said:
Android phones definitely have the processing power to do this. The only real problem is you're input and outputs on your phone, there's really only one... the 3.5 mm jack...
But there's maybe a way around this. And I'm not an engineer or developer or genius of any kind I'm just saying what I think should be at least possible... Everyone knows AD2P Bluetooth right? You could get you're input through it.
You use the microphone of a bluetooth headset, but instead of the microphone, you get your input from you're amp/guitar/whatever... could it be as simple as soldering a headphone jack to the PCB connections on a bluetooth headset? Dunno but let's asume it's possible.
Then you connect your phone to the headset, and you've got input... Great.
The problem now is that I don't know what android does when it has a bluetooth headset AND a normal set of earphones... Does it play from both, does it by default choose, I don't know... Say you still get output from the headphones, you could easily get the output to any speakers, seems rather pointless to use the phone's loudspeaker... This part from bluetooth input to audio jack output will maybe need a modified audio driver or something...
Once you've got input into the phone and output out of the phone, you would like to have some effects and/or amplification right? That's the point isn't it? I know nothing about programming such things but maybe a few developers who do will stumble onto this thread and share their expertise...
Once again it should be possible, but for just anyone to do this it'll be very challenging, more likely and hopefully companies like Gibson or Marshall or Ibanez (their Japanese, and this seems like a Japanese thing to do) for instance will see the need for something like this, and get working on it... If they make something like that and it works well, it'll make a LOT of money... For instance after you've bought this device, they could SELL effects, to be downloaded on a sort of 'plugin-basis'. And once one company does it, all will have some variant of the concept. I know I'd buy this...
Edit: Read about the apparent latency issue that Android has... So I don't know if it's that possible just yet, maybe ICS has bettered this flaw in previous Android versions, one can only hope...
Click to expand...
Click to collapse
You are thinking much too complicated.
The headphone jack of phones contains another pin for the microphone. A small jumper cable can be used that allows the connection of a guitar and headphones. Check out Amplitube iRig for an example.
(this type of jack is used so you can plug in a headset with microphone)
Bluetooth or something would be nice... but the latency wouldn't be, and that is exactly the problem.. Android has too much latency,
Look:
http://code.google.com/p/android/issues/detail?id=3434
Android is not capable of this because the way it handles audio is completely wrong. More recent devices have less latency but still too much. The problem lies very deep. It is a problem for game developers too. Please star this issue if you want Google to do something about it!
Send with my telegraph
How about USB OTG connected to a Rocksmith USB connection?...
Sent from my SPH-D710 using xda premium
The Irig will work fine for this you dont need bluetooth aor usb adding yet another layer of BS to the audio streams round trip. however now that JB is out latancy is stitting around 10-12ms on adevice such as the galaxy nexus wich is completely usable (1ms of latancy = 1foot from your amp) so 12ms would be like playing 12 feet from your amp,
If you cant play like this then on stage will never work for you.
As a side note usb audio is apparently supported in JB as well now
There are now a couple of apps on Android that at least have a range of guitar effects. Delay Effects Plus (via headphone type cable) and usbEffects (USB OTG) both have an option to use Native Audio, so if you have the Galaxy Nexus running JB the latency is quite reasonable (50-70 mSec). If you have a modded ROM you may get lower latency without Native Audio option as they both read the buffer size from the OS. Of course for everyone else the latency is still an issue and varies from device to device. So to those that said they would buy .... please do!
This very issue has put me on the fence on what kind of tablet I buy. Cannot decide between note, and Ipad 3. The accessories and ItunesU has been one of the biggest attractions for me.
Litlle heads up: in their latest newsletter IK Multimedia (of Amplitube) post a few job openings, one of them being "Android App Developer"!
So they are at least working on something..
Sent from my HTC One X using Tapatalk 2
Do you got new update for futur multi effect on android

HDMI input for android

1) PLEASE DON'T BAN ME, i did read and understand the warning as:
Warning: You have less than 50 posts and are about to post a new thread in the development section. If your post is not development-related (meaning, if you’re not posting a ROM), you are likely to receive an infraction from our moderators, which will lead to a ban. Please use the other forums for this device (like General, Q&A, and Themes and Apps) if your topic is not development-related.
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I am still posting here as, although the device i have is 4 androids ( EVO, EVO 3D, TRANSFORMER PRIME, ARCHOS A10|1T:8000), all with HDMI port (except the 3d, which has HDMI output through the USB port with a converter thingy), what I am posting about should, i would think, be an android-wide thing, not anything specific, especially for ICS and jellybean.
I know, and have read, all the specific device threads about HDMI input, but, as it would be near impossible to unit-specific code for HDMI communications, and as the HDMI standards state that they are functionally,and always have been, that HDMI is a 2-WAY communications protocol, then shouldn't an "HDMI input display" code be able to be written for Android as a whole, so there could be a stand-alone app for any android with an HDMI port to just 'sleep' android when an HDMI is connected with video-out signal being transmitted over it, and just default to a display?
Especially with ICS able to handle not only HDMI 2-way communication, but its' support for full HD displays (for example, TransformerPrime T701, and GoogleTVs), or even whatever the display is capable of?
So, shouldn't the app just be to read the port's input, if its HDMI signal, it can either 'suspend' or 'sleep' android and allow the device connected to simply pass display signal to the device?
If HDMI follows standards, which it must in order to even use the HDMI trademark, then any android which can dispay to HDMI out, by definition, MUST be able to receive HDMI communication from the other device. Anything over HDMIversion 1.5.
I have a working familiarity with HDMI output, but unfortunately, i've never had a chance to work with HDMI input coding, so I understand I could be way off.
so please, just tell me if I am mistaken, i can and will delete this thread or move it where you guys suggest, just please don't ban me for thinking this all the way through.
But my understanding of Android and HDMI is that anything that is capable of transmitting HDMI can be read by anything else that has HDMI (except china with its strick firewall) therefore, anything with an HDMI out and an HDMI to HDMI Mini or Micro cable should be able to connect to DVD players, computer graphic cards, XBOX. etc.
Why?
just to use as a display. I'm not sure about the archos, but i know the evo3D dual core and the ASUS ee transformer prime should have enough power to use as displays, probably with suspend, ANY HDMI signal and decode it and display it just as if were live. People would use to plug in dvd players, video game systems, etc while on the go.
So, with 2-way communication through HDMI, shouldn't we be able to make an app that would turn the android device into a small portable screen?
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Once again, i am thinking this is is an android-wide app or mod, which is why i am posting here. Please someone just tell me if it needs to be moved and not ban me for posting here, like the warning is saying.
I had snippets of various code pasted here that should be able to be pieced together into something working, but, as I don't really know what the lines mean or how to code it together, i'm gonna just end this here and see what everyone says.
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Does GoogleTV handle the TV's various inputs through Android processing? could we just extract the control lines and turn it into an APP from that? or does GoogleTV only run when the TV is on a specific input channel, no android runs if switch input to Component or HDMI or others than the 'dedicated' android input selection?
No. There is not a way to use an output as an input. Period.
Questions or Problems Should Not Be Posted in the Development Forum
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Moving to Q&A

[Q] SGS2 (i9100) USB Audio Out functionality

Dear XDA people,
I have not found any conclusive topic on whether it's possible (or is already done) to enable USB audio output (to a DAC obviously) on the SGS2. Some shreds of relevant topics have crossed my path, but they all either died out or were for different models.
So: What is the status? What's the roadblock? Is there in fact already a rom/kernel which has this enabled?
Thanks
edit: There's a feature request on the Android project page, but I can't link to it due to <10 posts. The title is: Issue 24614: Enable USB audio on the Galaxy Nexus (or any Android 4.0 device)
Not currently possible & unlikely to be on the SGS2 tbh. Devs who have been asked to have a look at it have gone 'nup' & don't have the time/inclination to work on it (blame Samsung).
Only chance of it happening would be to code it yourself or for a dev who actually wants to use that functionality themselves to have a go at it. People have started threads on here where people have pledged X amount of $ if a dev can get this working, but these threads fall off the radar due to lack of interest fairly quickly & there have been no takers on the dev side.
I wouldn't hold your breath.
Right, that's sad to hear. No developers who want this? Strange... thought they'd be interested in getting the best possible out of the hardware available.
Guess I'll wait for future models then. Thanks for the clarification.
From the comments I've seen from the devs who have been asked, it's a case of not having to mess around with/spend a lot of time dealing with Samsung's ****ty closed source drivers etc. Take CM9 as an example, those guys have been doing that since the first ICS leaks were released late last yr & frankly I don't blame them for being fed up.
Most people don't realise exactly how much work goes into making things work on a custom rom (a real one; not a winzip job like 80% of 'roms' on here), getting this to work would not be a walk in the park.
And the other thing is many (most) people also have a dedicated media player which puts out much better sound than the SGS2 anyways.
suadion said:
Right, that's sad to hear. No developers who want this? Strange... thought they'd be interested in getting the best possible out of the hardware available.
Guess I'll wait for future models then. Thanks for the clarification.
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Yeah don't get me wrong -- I appreciate the work that goes into messing with this stuff (especially the process of discovering how it actually works, the reverse engineering of sorts). I just thought that this was a pretty big feature to have and was surprised there was so little to find about it.
And yeah, I also have a better media player (Cowon D2), but the integration into a single device is the attractive part obviously, and unfortunately the SGS2 doesn't have the good audio chip that the SGS1 does have (Stupid Samsung).
Yep using the Yamaha chip in the SGS2 was a puzzling move given how universally praised the sound quality was on the SGS, and made even more puzzling by Samsung going back to a Wolfson chip on the SGS3. A moment of madness perhaps. Every review of the SGS3 I've read so far has said the sound quality is very good.
suadion said:
And yeah, I also have a better media player (Cowon D2), but the integration into a single device is the attractive part obviously, and unfortunately the SGS2 doesn't have the good audio chip that the SGS1 does have (Stupid Samsung).
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MistahBungle said:
And the other thing is many (most) people also have a dedicated media player which puts out much better sound than the SGS2 anyways.
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Click to collapse
And that is exactly the reason why this feature should be enabled
There are quite a few people who enjoy high quality portable audio. Many of them use portable headphone amplifiers as standard headphone outputs on devices are quite often unable to properly drive high(er) end headphones. Many of these portable headphone amplifiers also have an USB DAC on board for use with a computer.
Being able to use USB Audio out on your phone would mean one less device to lug around. The quality of the Android devices audio components would no longer matter, as the external DAC/Amplifier would take over their function.
Just imagine, no more worries about what DAC is put in a phone, as you would be free to choose your own external DAC.
Galaxy S3 can do it, some tablets can do it, so hopefully someone will be inspired to make this happen on the S2 and other devices.
I hear the arguments & agree with you (I personally would use it), but it's very unlikely to happen for the SGS2. Samsung have made it very very difficult to do by way of the Yamaha sound chip & their ****ty closed source drivers/firmware, and devs who have been asked so far have looked at it & gone 'Nup'.
So, as I said in my post above, unless you find a dev with a fair bit of time on their hands who actually wants to use this themselves, it probably won't happen.
Edit - @Coop: Have a look at this post by Entropy in the CM9 thread re: proprietary code/the crap devs have to deal with. Just to give you a bit of background as to why the devs who have been asked to date have all said no.
Coop666 said:
And that is exactly the reason why this feature should be enabled
There are quite a few people who enjoy high quality portable audio. Many of them use portable headphone amplifiers as standard headphone outputs on devices are quite often unable to properly drive high(er) end headphones. Many of these portable headphone amplifiers also have an USB DAC on board for use with a computer.
Being able to use USB Audio out on your phone would mean one less device to lug around. The quality of the Android devices audio components would no longer matter, as the external DAC/Amplifier would take over their function.
Just imagine, no more worries about what DAC is put in a phone, as you would be free to choose your own external DAC.
Galaxy S3 can do it, some tablets can do it, so hopefully someone will be inspired to make this happen on the S2 and other devices.
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[Q] Is there a root available for the Xtrons TD730a Double Din Headunit?

Hi there,
I hope I'm posting this request in the right section.
I have recently bought myself an Xtrons TD730a Double Din Head Unit, I would post a link to it but unfortunately I am unable to as the forum won't let me. You should be able to find the unit in question with the help of google though.
On the whole I've been pretty happy with the device. The main downside I have discovered though is that it appears to be running a rather cut down version of Android 4.1
It is unable to communicate with my Bluetooth OBDII device, which having read through a few of the other threads on here seems to be a common issue with many of the Android Car Headunits.
The other, more annoying issue I've noticed is that when I am streaming music from my home server over 3G, it doesn't seem to support gapless playback when changing to the next track or Audio Chaining or whatever it is known as. I use exactly the same apps and set up on my LG G3 and gapless playback works fine on that.
From what I can gather, the necessary APIs to support Audio Chaining were added in to Android API Level 16 which was introduced around the time of Android 4.1 so this Headunit should support it.
I'm wondering, if the Headunit is running a rather cutdown version of 4.1, is it possible that Audio Chaining support has somehow not been added to it's supported APIs?
Is there a way I can check if this is the case? And if so, can I get them added in somehow? I'm guessing that a good place to start would be if there is a root method available for this device?
I hope it was OK to post these questions here. Please let me know if I should have posted them elsewhere.
Cheers,
Jim
jim1985 said:
Hi there,
I hope I'm posting this request in the right section.
I have recently bought myself an Xtrons TD730a Double Din Head Unit, I would post a link to it but unfortunately I am unable to as the forum won't let me. You should be able to find the unit in question with the help of google though.
On the whole I've been pretty happy with the device. The main downside I have discovered though is that it appears to be running a rather cut down version of Android 4.1
It is unable to communicate with my Bluetooth OBDII device, which having read through a few of the other threads on here seems to be a common issue with many of the Android Car Headunits.
The other, more annoying issue I've noticed is that when I am streaming music from my home server over 3G, it doesn't seem to support gapless playback when changing to the next track or Audio Chaining or whatever it is known as. I use exactly the same apps and set up on my LG G3 and gapless playback works fine on that.
From what I can gather, the necessary APIs to support Audio Chaining were added in to Android API Level 16 which was introduced around the time of Android 4.1 so this Headunit should support it.
I'm wondering, if the Headunit is running a rather cutdown version of 4.1, is it possible that Audio Chaining support has somehow not been added to it's supported APIs?
Is there a way I can check if this is the case? And if so, can I get them added in somehow? I'm guessing that a good place to start would be if there is a root method available for this device?
I hope it was OK to post these questions here. Please let me know if I should have posted them elsewhere.
Cheers,
Jim
Click to expand...
Click to collapse
Even though its an 7 inch screen it is the same as the AN21 head unit internally. So it doesnt support obdll over bluetooth. Try getting the wifi version that it works. Try the same rooting method as that head unit.
@ little off topic question
Im sorry I do not have the information on that for you but it shocked me when you said that it didn't work with your phone over bluetooth . I was thinking about buying this model and want to make sure that the Bluetooth is able to stream my music and also make phone calls from the dash !? Is that possible with this unit ?
Another question I had is about the sound quality
The watts are not listed online so does it get loud and clear or do you need an amp with this unit
Again sorry I couldn't help ( sorry for asking a bunch if random stuff )
easyguy said:
Even though its an 7 inch screen it is the same as the AN21 head unit internally. So it doesnt support obdll over bluetooth. Try getting the wifi version that it works. Try the same rooting method as that head unit.
Click to expand...
Click to collapse
Thank you so much for pointing me in the right direction :good:
I've had a good read through the AN21 head unit thread. I've ended up upgrading the system software to version 2.8.3 and I've also managed to root the device.
The result is now that I am able to play my music over 3G without there being any annoying gaps between each track.
As you've mentioned, it still doesn't support OBDII over bluetooth and this does turn out to be a hardware issue rather than a software issue. In fact, the software itself does clearly support OBDII over bluetooth, it's just the hardware version of my bluetooth controller that doesn't support it.
Wolfy717 said:
Im sorry I do not have the information on that for you but it shocked me when you said that it didn't work with your phone over bluetooth . I was thinking about buying this model and want to make sure that the Bluetooth is able to stream my music and also make phone calls from the dash !? Is that possible with this unit ?
Another question I had is about the sound quality
The watts are not listed online so does it get loud and clear or do you need an amp with this unit
Again sorry I couldn't help ( sorry for asking a bunch if random stuff )
Click to expand...
Click to collapse
The head unit does connect to my phone over bluetooth, I never said that it didn't. I was referring to a bluetooth OBDII adapter (for reading out diagnostic information from my car's ECU) that does not work with the head unit over bluetooth.
I've not actually attempted to make or receive any calls over bluetooth, or to stream any music via Bluetooth, but it is my understanding that the head unit does support these features.
It is probably a good idea to have a proper read through the"AN-21 U" - Unbranded 6.2" 2 DIN Pure Android 4.1 Car Stereo Radio Head Unit [ROOTED] thread available on here in the Android Development and Hacking --> Android General section as it seems as though people have had different results with regards to sound qualities depending on which software version / MCU version they are running on their unit. For what it's worth, I've left my MCU version untouched as it looked as though it was a whole different ball game to change MCU versions as apposed to simply changing the software version.
I can't remember off the top of my head what the speaker wattage outputs are, I seem to remember something around the 45X4 mark, remember those are peak ratings. I do have an amp running a sub woofer in the boot of my car but the rest of the speakers, which are just the standard speakers that were supplied with the car, are powered directly off the head unit.
I've got to be honest and say, I don't think they go as loud as they did with my previous head unit, a Sony MEX-BT3100U, so I will probably look at amping them at some point in the future, probably after replacing them with some good quality aftermarket speakers.
jim1985 said:
Thank you so much for pointing me in the right direction :good:
I've had a good read through the AN21 head unit thread. I've ended up upgrading the system software to version 2.8.3 and I've also managed to root the device.
The result is now that I am able to play my music over 3G without there being any annoying gaps between each track.
As you've mentioned, it still doesn't support OBDII over bluetooth and this does turn out to be a hardware issue rather than a software issue. In fact, the software itself does clearly support OBDII over bluetooth, it's just the hardware version of my bluetooth controller that doesn't support it.
The head unit does connect to my phone over bluetooth, I never said that it didn't. I was referring to a bluetooth OBDII adapter (for reading out diagnostic information from my car's ECU) that does not work with the head unit over bluetooth.
I've not actually attempted to make or receive any calls over bluetooth, or to stream any music via Bluetooth, but it is my understanding that the head unit does support these features.
It is probably a good idea to have a proper read through the"AN-21 U" - Unbranded 6.2" 2 DIN Pure Android 4.1 Car Stereo Radio Head Unit [ROOTED] thread available on here in the Android Development and Hacking --> Android General section as it seems as though people have had different results with regards to sound qualities depending on which software version / MCU version they are running on their unit. For what it's worth, I've left my MCU version untouched as it looked as though it was a whole different ball game to change MCU versions as apposed to simply changing the software version.
I can't remember off the top of my head what the speaker wattage outputs are, I seem to remember something around the 45X4 mark, remember those are peak ratings. I do have an amp running a sub woofer in the boot of my car but the rest of the speakers, which are just the standard speakers that were supplied with the car, are powered directly off the head unit.
I've got to be honest and say, I don't think they go as loud as they did with my previous head unit, a Sony MEX-BT3100U, so I will probably look at amping them at some point in the future, probably after replacing them with some good quality aftermarket speakers.
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Anyone know if it is possible to root the Xtrons TS702L or how to upgrade it ?

[APP][Headunit Reloaded Emulator] Running Android Auto on almost any unit.

Some of you might already be aware others maybe not, with the latest build of the "Headunit Reloaded app" you can now enjoy the Android Auto experience on almost any device. The app can be found in it's own thread, together with all the how to's and all the support: https://forum.xda-developers.com/ge...ndroid-4-1-headunit-reloaded-android-t3432348
Currently confirmed units capable to run the app:
- RK3188 based units, but only through Wifi connection
- AN-21U, xTrons, will work with USB, but only using Software decoding (occasionally that can produce some H264 decoding glitched)
-Allwinner powered devices
- Intel powered Joying units
Possibly other devices as well.
I have just updated the free trial app version to match the latest release so trial now also include all the features from the main build for those who want to try it out on their devices.
Can you tell me what this actually can do for me?
Oldpapa49 said:
Can you tell me what this actually can do for me?
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The app allows you to convert your Android powered headunit into an "Android Auto" compatible headunit, instead of buying an expensive Sony/Pioneer/Kenwood which can run Android Auto on it, you can use you existing unit to do so.
Emil Borconi said:
The app allows you to convert your Android powered headunit into an "Android Auto" compatible headunit, instead of buying an expensive Sony/Pioneer/Kenwood which can run Android Auto on it, you can use you existing unit to do so.
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Great, I give it a try after my business trip.
Emil Borconi said:
The app allows you to convert your Android powered headunit into an "Android Auto" compatible headunit, instead of buying an expensive Sony/Pioneer/Kenwood which can run Android Auto on it, you can use you existing unit to do so.
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I dont understand the point - a full Android headunit can do so much more than Android auto.
Its a bit like saying "theres this great app that reduces the functionality of your device and makes it dumber".
Or have I missed something ?
typos1 said:
I dont understand the point - a full Android headunit can do so much more than Android auto.
Its a bit like saying "theres this great app that reduces the functionality of your device and makes it dumber".
Or have I missed something ?
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Click to collapse
Hi.
You are half way right, using "Android Auto" is way more limited than using a full blown Android, but it has some advantages as well, like for example it integrates SMS control from the headunit and data used between the phone and the headunit isn't classed as tethered data, which comes VERY hand for those who have included allowance in their phone package but not usable for tethering. Meaning you can listen to online streams (radios) on the road without tethering to the headunit. I know you can do that over A2DP as well, but most of this devices have a very cheap and bad quality A2DP receiver making listening to anything a painful act rather than an enjoyable experience.
Others will find the simplicity of the app appealing as well as the fact that it removes all the unnecessary notifications (distractions) while driving, but this like everything else related to Android Auto VS a full Android headunit is subjective.
Everybody has different needs, different preferences and so on so while some people will find Android Auto to be the best alternative possible others will say it's stupid to limit the functionality of your headunit. I tend to agree with both of them and both have valid points, I thinks it's down to individual preference.
Emil Borconi said:
Hi.
You are half way right, using "Android Auto" is way more limited than using a full blown Android, but it has some advantages as well, like for example it integrates SMS control from the headunit and data used between the phone and the headunit isn't classed as tethered data, which comes VERY hand for those who have included allowance in their phone package but not usable for tethering. Meaning you can listen to online streams (radios) on the road without tethering to the headunit. I know you can do that over A2DP as well, but most of this devices have a very cheap and bad quality A2DP receiver making listening to anything a painful act rather than an enjoyable experience.
Others will find the simplicity of the app appealing as well as the fact that it removes all the unnecessary notifications (distractions) while driving, but this like everything else related to Android Auto VS a full Android headunit is subjective.
Everybody has different needs, different preferences and so on so while some people will find Android Auto to be the best alternative possible others will say it's stupid to limit the functionality of your headunit. I tend to agree with both of them and both have valid points, I thinks it's down to individual preference.
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Yes, you make some good points actually, some of which I find quite appealing. I kinda fancy some of those features on my Android headunit without running Android auto.
Just seen youre the dev, I wasnt trying to dis your project, just couldnt see the point, although I can now and yeah, its all subjective and down to personal preference.
typos1 said:
Yes, you make some good points actually, some of which I find quite appealing. I kinda fancy some of those features on my Android headunit without running Android auto.
Just seen youre the dev, I wasnt trying to dis your project, just couldnt see the point, although I can now and yeah, its all subjective and down to personal preference.
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No worries haven't considered it like that, I like to be as objective as possible, same with AutoMate, I think it's a great app and usually when I'm asked to compared it against AA I try to do it in objective way.
At the end of the day it doesn't matter which approach somebody takes until the it doesn't start with the i letter
Emil Borconi said:
No worries haven't considered it like that, I like to be as objective as possible, same with AutoMate, I think it's a great app and usually when I'm asked to compared it against AA I try to do it in objective way.
At the end of the day it doesn't matter which approach somebody takes until the it doesn't start with the i letter
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Click to collapse
Maybe your next project should be bringing some of the advantages of this one to people who dont want Android Auto on their Android headunit, but want some of the benefits youve pointed out, like tethering data classed as phone data and SMS control from the headunit ? Sort of a halfway house. (I m joking but kinda serious too).
Emil Borconi said:
Some of you might already be aware others maybe not, with the latest build of the "Headunit Reloaded app" you can now enjoy the Android Auto experience on almost any device. The app can be found in it's own thread, together with all the how to's and all the support: https://forum.xda-developers.com/ge...ndroid-4-1-headunit-reloaded-android-t3432348
Currently confirmed units capable to run the app:
- RK3188 based units, but only through Wifi connection
- AN-21U, xTrons, will work with USB, but only using Software decoding (occasionally that can produce some H264 decoding glitched)
-Allwinner powered devices
- Intel powered Joying units
Possibly other devices as well.
Click to expand...
Click to collapse
Hi Emil,
I've sent yiu an email as well.
I'm in India and I just bought an android head unit. Its Allwin. When I go on the app store, I can't download the app, its not compatible.
Please tell me what to do?
@Emil Borconi , confirmed working on mtcd ha 1.63c with Hal9k_ Nougat ROM on RK3188 1GB unit over wifi! Purchasing, best of luck.
hey, it's working fine, but is it possible to change resolution to 1024x768? I can work only on 800x640, and the next one is 1280x720, which isn't working properly on my HU

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