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[Q] Android Tablet as bluetooth headset?

Leave phone in pocket.
Mount galaxy tab to dashboard of car.
take phone calls though galaxy tab hardwired into car audio system with external mic.
possible?

Leave phone in pocket. <-- YES
Mount galaxy tab to dashboard of car. <-- YES
take phone calls though galaxy tab hardwired into car audio system with external mic. <-- YES
I use Plantronics Bluetooth ear piece, works great, also there is a free app that allows for ALL audio from the SGT to be forced out the BT.

agreed very much possible. BT headset im using is Hisense HB200S connected to 2 of my phones at the same time.

Not really what I was thinking of. I'm saying use the tablet as a bluetooth headset. So when i jump in the car phone calls are automatically routed from my phone into the tablet which is hooked up to the audio system of my car.
so it would essentially function as a really nice car stereo but have all the added functionality of a android tablet.
data through bluetooth would be super awesome, but this is kinda shooting for the stars.

Did you find any solution?
UP

I'd love to see this too. Basically have sms and calling features on my tab, going through my phone via bluetooth.

anybody found a solution?
i have a carpc an since androidX86 (4.0.3) is out it would be great to use this as bluetooth handsfree.

i agree
split2th said:
I'd love to see this too. Basically have sms and calling features on my tab, going through my phone via bluetooth.
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I 100% agree, I need this feature as well. We clearly are not the only ones. This essentially is centered around someone with development skills using the Bluetooth Headset Profile to have the tablet show up as bluetooth headset or handsfree to the phone.
With that it'd be great for it to pull contacts (if you dont sync contacts with google), receive texts, receive calls, dial, voice dial, etc. Out of all those, i really just want to be able to receive calls and have them routed to the tab. Everything else is a bonus.
Should we start a bounty?

Let's do..whatever, to make this happen! I would pay!
Pioneer navigation in my car can do it but I want to replace it with android. This is the only reason why I can't do it.

Closest thing i've been able to do for this is my phone is connected via bluetooth to my cars head unit. My tablet it mounted and connected to the head unit with 1/8" - 1/8" This way i can use my tablet for music and navigation and if i get a call my system will auto switch over for the call.

MarcR727 said:
Closest thing i've been able to do for this is my phone is connected via bluetooth to my cars head unit. My tablet it mounted and connected to the head unit with 1/8" - 1/8" This way i can use my tablet for music and navigation and if i get a call my system will auto switch over for the call.
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thanks for that info, but in my case I won't have a headunit to act as the "middleman". we really need the option of the tablet itself being able to exploit the Bluetooth handsfree profile
Sent from my GT-P6210 using XDA Premium HD app

Tablet Talk 1.3.3.1 was released on 4/15 with a Call Sharing option over Bluetooth or Wifi. The feature is still in beta, but from my limited usage in the past 2 days, it seems like a viable solution to this problem. The app can be found in the market with a reasonable price tag of $2.99. For those of you looking for a carputer solution - you found it.

i actually use Tablet Talk and fully support that developer for his work, BUT the call answering feature requires either the phones speaker phone to be on or a bluetooth handsfree kit or bluetooth headset in order to work. It's not the same as the subject of this thread but it is the closest we have so far.
I've been in talks with him and he's still working on the BT stack in his spare time but makes no promises that it'll work or make it into his app.

Hi,
i 'm looking for the same possibilities, but from my iphone=>Tab=>Car-audio
TabletTalk doesn't work with iphone
What would be great is a full application on the Tab with Dialing, Contact List from the phone, the same as every caraudio BT sold nowadays...
I don't understand why it 's link to the Phone OS, because a Pioneer Car Audio BT doesn't care if it s a BB, Nokia, iphone, or an android phone : it's just A2DP/Handset server mode...
I succeeded in sharing my iphone music librairie and 3G to the tab, there 's only the phone part left :/

correction, i can't acces my iphone music lib from the tablett
i can only acces to a itune on a PC, but not directly to the iphone
I don't understand why there is no Car Audio App available, the developer would be rich !

Thank you guys, I've been looking for this for my – project for some time. Can't wait to try it out this weekend.
Sent from my highly modified HTC Rezound using Tapa 2. Yes, Swype misspelled something above.

I'm also on the hunt for the same thing, please report back if anyone finds a solution.

Same here i have been wanting to do this but with my cheap pos phone
Lg VX9200 has bluetooth and works fine with my headphones with music and calls
Android only sees it as a internet source i just want to use my tablet as a speaker phone with a big key pad
Or maybe even use google contacts and have it dial my phone
Sent from my Transformer TF101 using Tapatalk 2

Bump to keep this thread going I'll be attempting something similar in the future

This would be amazing, but unfortunately the tablet talk app will not work because it requires your car audio to be wired through your phone which would defeat the purpose. I hope the tablet talk developers can figure something out!

Android Auto headunit vs just tablet?

Hello all, I had a Son XAV-601BT, which was supposed to be a very promising and awesome android headunit, but ended up being a dud because mirrorlink doesn't work well, etc, I can only connect my phone with bluetooth and play music through it. I just got a Nissan Titan and want to up my in car experience. I had a good bit of audio equipment I took out of my old 240sx and was going to reuse it, which included the 601BT, 2 kicker amps (one for the sub, another 4 channel for speakers), and polk audio speakers, but the headunit is basically.. meh.
I was wondering what would be the ideal route to go to get the best experience. I know they have head units that have all the android auto stuff built in, but since I already have a nice amp I can use to drive the speakers, would I be better off just using a tablet and getting things connected up that way? I would like to be able to utilize good quality voice for commands and phone calls, but I am not sure if using a tablet for that would work (using the phones capabilities through the tablet to make calls and texts via bluetooth or some other way.)
If anyone has any recommendations on how I can have a nice sized mounted capacitive screen to control my audio (spotify), navigation, and be able to use voice commands (though I could technically just make them through my watch as I have been), I would love to hear some suggestions. If the best route to go would be an actual android auto headunit, then so be it, but I would like to know if alternatives can do this.

See my sig for Headunit app for Android Auto. Nexus tablets are working well with it.
Tablet solution likely takes some time to get it the way you want it, but it makes it very customizable and can be done cheaply-ish.
There are 2 popular lines of $300 Chinese HUs discussed on XDA. They are best described as... the Chinese stuff you find on EBay/Alibaba etc. Source is available but the latest Newsmy is still stuck on Android 4.4.
Or for $500-2k get a Pioneer or Kenwood Android Auto 4100/6100/7100NEX. There's a custom ROM just come out for some Pioneers, but it will take time to mature.

Awesome, thanks for the info. I really appreciate it. I was looking in to some of the interesting setups people have, such as using an Arduino with an IR transmitter that you connect to the tablet, so you can use a standard smaller headunit, hide it in the dash to connect to the speakers and control the volume, and the tablet can be mounted nice, and when you hit the volume etc on the tablet it makes the Arduino blast the IR to the head unit, and it makes the volume go up as if you pressed the button (or in this case, the remote)
That might work well with a head unit app or something similar. I will download the APK's you linked and check them out!

Viper4android/Audio Processing with AA

Is there any way to have viper process audio being routed to the navi when using Auto? Or does the file get processed by the head unit? Might be a silly question, but I've been searching the google for days and can't find any information about how AA processes audio. Nexus 6 with latest Chroma build, 7100nex

Isn't the whole purpose of doing AA is to have the headunit process the audio? I'm not certain too but given that you need to have a usb connection, I'd imagine thats how it works. It better not be via the bluetooth...

arrico21 said:
Is there any way to have viper process audio being routed to the navi when using Auto? Or does the file get processed by the head unit? Might be a silly question, but I've been searching the google for days and can't find any information about how AA processes audio. Nexus 6 with latest Chroma build, 7100nex
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don't know for navi, but i know it processes music, in the bluetooth section of Vipr.

Does this apps can be use on my Xiaomi redmi Note 3G?
Sent from my HM NOTE 1W using TapaTalk

I was wondering this as well. In my current setup, simple Bluetooth to car stereo, v4a works great! But my next car will have AA, which I think uses USB as well as Bluetooth in some cases, I believe. Can anyone with v4a and AA confirm being able to use v4a via AA?

It does not work with AA.

When using AA the head unit will process the music, so it's similar to playing off of a flash drive. While I love V4A I prefer it this way because there is no gain limit to overcome like with Bluetooth or Aux.

menissalt said:
When using AA the head unit will process the music, so it's similar to playing off of a flash drive. While I love V4A I prefer it this way because there is no gain limit to overcome like with Bluetooth or Aux.
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Is this still the case? Audio volume is low with with AA and i have to increase head units volume when listening music with AA. I hoped V4A would fix this.

Possible to use a Bluetooth Headset with Android Auto?

Hello,
I just purchased and installed a Pioneer AVH-4100NEX. So far it's pretty slick. I'll be using it with my Galaxy S6.
I noticed that when I try to disable the Call Audio Bluetooth profile from the phone side, it re-enables itself... like I HAVE to use the NEX for call audio.
I would like to be able to turn on my BT headset and use that instead, without much hassle. There are definitely times where I'll be in the car with other people and don't want the whole car to hear the conversation. It also presents a call quality issue with the far end being able to hear the system speakers.
Do I have to unplug USB from the NEX to make this work?

muzicman82 said:
Hello,
I just purchased and installed a Pioneer AVH-4100NEX. So far it's pretty slick. I'll be using it with my Galaxy S6.
I noticed that when I try to disable the Call Audio Bluetooth profile from the phone side, it re-enables itself... like I HAVE to use the NEX for call audio.
I would like to be able to turn on my BT headset and use that instead, without much hassle. There are definitely times where I'll be in the car with other people and don't want the whole car to hear the conversation. It also presents a call quality issue with the far end being able to hear the system speakers.
Do I have to unplug USB from the NEX to make this work?
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I would like to know this also

I have same unit, try having headset connected before plugging in your phone. That may work
Sent from my SM-N910V using Tapatalk

I'm bumping this up. With my previous phone (LG V10) I could select which device use to make phone calls, Android Auto device or a bluetooth headset (Plantronics). Now with a Oneplus 3T that is not possible anymore.
AA automatically rerouting "BT phone" to main AA device. That is really annoying.
If someone knows a workaround to this please give advice, thanks...

You have to have it enabled, in a nutshell the unit (Pioneer) declares that it has bluetooth capabilities and declares the bluetooth mac address when it initialize the connection, than Android Auto (trough Google Play Services which is a system app) will enable the bluetooth, set up a pairing if it doesn't exist and connect to it, so no matter what you do it will always connect to it, the only way to "avoid" this is:
a) Get another phone which connects to the Pioneer bluetooth, then connect the phone (haven't tried this, but probably will do the trick)
b) Alter the pioneer unit so it doesn't send the bluetooth mac and it doesn't declare the bluetooth service (almost impossible, you will need to replace the app on the unit)

Does AA use the microphone of the headunit?

Hi guys
I have been using Android Auto for a couple of months now and I noticed that Android Auto has problems to understand what I am saying while driving. I don't have this problem when I use voice commands with the standard navigation on my headunit so I started wondering: does Android Auto use the microphone of the headunit? Or is it only using the built-in microphone of my phone?
That would at least explain why Android Auto has so much difficulties to understand what I'm saying while driving. If AA uses the microphone of my phone, is there any way to force AA to use the microphone of my headunit?

I'm not right sure on this. I use a Pioneer head unit with AA and if using Google maps it seems to understand fine but when I use voice commands to play an artist or playlist in Google music then the 'assistant' behaves like a complete idiot. I suspect it uses the head unit mike as mine is just behind the steering column where the phone is tucked away in front of gearstick.