Database Develop

Bluetooth music quality

Super new here, I tried searching for my problem but I may just be blind. Thanks in advance for taking the time to help out.
I've got an 06' BMW with a witson android head unit.
The issue I'm having is Bluetooth music audio quality. Oddly enough Bluetooth calling isn't a problem. The upper range of sound is distorting. Don't know if this makes a difference or not, it's connecting to an iphone *hides under table. If I listen to the radio or to a cd (like it's 1997 or something) I don't hear the issue.
I've gone into the factory settings, and adjusted the BT volume up and down and found no change. I've changed all of the volume options, and found no change. I've tried changing the amplifier settings as well and have found no change.
MCU version MCTB-KYD-V2.77
Android version 4.4.4_27082015
Kernel version 3.0.36+
[email protected] #481
Build number rk3066-eng4.4.4
Cpu ARM cortexA-9 @1.6ghz(x2)
Thanks again for looking

Blackychan79 said:
Super new here, I tried searching for my problem but I may just be blind. Thanks in advance for taking the time to help out.
I've got an 06' BMW with a witson android head unit.
The issue I'm having is Bluetooth music audio quality. Oddly enough Bluetooth calling isn't a problem. The upper range of sound is distorting. Don't know if this makes a difference or not, it's connecting to an iphone *hides under table. If I listen to the radio or to a cd (like it's 1997 or something) I don't hear the issue.
I've gone into the factory settings, and adjusted the BT volume up and down and found no change. I've changed all of the volume options, and found no change. I've tried changing the amplifier settings as well and have found no change.
MCU version MCTB-KYD-V2.77
Android version 4.4.4_27082015
Kernel version 3.0.36+
[email protected] #481
Build number rk3066-eng4.4.4
Cpu ARM cortexA-9 @1.6ghz(x2)
Thanks again for looking
Click to expand...
Click to collapse
Have you tried factory settings, and turning down BT master volume. Mine was set well above the others, which could cause issues when in higher volume ranges.

Yes, in fact I was super excited when I searched and found the factory settings code, and that the bt adjustment was in there. It was set to +18 I've since set it to 0 and saw no improvement.

I guess my question is this
Clearly, a setting isn't going to fix this, should I just install a new Bluetooth app, or is the Bluetooth app essential to the operating system and I should just install a new operating system??

HI
I have erisin 2046 and my bluetooth music is scratching hard.. quality is very bad
set the master volume down already in factorysettings (126) but nothing changed.

Sounds like a firmware update is required... maybe to android 5.1? If only people answered more often about doing them... (I have no idea how)

I have two units (MTCB KLD, MTCD KGL) and an old clarion HU with bluetooth.
This problem exists all three units. It's not a firmware problem, problably MCU related issue.
I was digging many forums about this, but I cannot find solution.

I have a MTCD unit which is functioning well but the BT streaming quality is quiet bad.
It's quiet easy to do an A and B comparison with our android units so it will be obvious but if you didn't know, you'd think it's ok.
I just think bluetooth streaming quality is generally bad if you don't use APTX

probably there is a problem with smartphone. When I using android one, there is no distorting in upper range. However, when I use iPhone SE, it's hard to hear distorting sound and quality is really bad.

I have the same problem. Very bad sounding, upper range is distorted. I've tried 3rd party Bluetooth apps, but it doesn't recognize the unit as having Bluetooth. Probably cause the Bluetooth chip is in the MCU, and is not actually part of the android software. That's my guess.
Does anyone know if a Bluetooth dongle to the USB will work? I have a spare one laying around.
Sent from my iPhone using Tapatalk

davidgotmilk said:
I have the same problem. Very bad sounding, upper range is distorted. I've tried 3rd party Bluetooth apps, but it doesn't recognize the unit as having Bluetooth. Probably cause the Bluetooth chip is in the MCU, and is not actually part of the android software. That's my guess.
Does anyone know if a Bluetooth dongle to the USB will work? I have a spare one laying around.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
The bluetooth module connected to the MCU.
The MCU provide the Bluetooth audio stream to the Android OS.
The Bluetooth app can control the BT module through the MCU.
So there isn't direct link between the android OS and the bluetooth module.
Sorry my bad english..
Balazs

Babss said:
The bluetooth module connected to the MCU.
The MCU provide the Bluetooth audio stream to the Android OS.
The Bluetooth app can control the BT module through the MCU.
So there isn't direct link between the android OS and the bluetooth module.
Sorry my bad english..
Balazs
Click to expand...
Click to collapse
Yeah that's what I was trying to say, maybe we can switch out the Bluetooth module?

davidgotmilk said:
I have the same problem. Very bad sounding, upper range is distorted. I've tried 3rd party Bluetooth apps, but it doesn't recognize the unit as having Bluetooth. Probably cause the Bluetooth chip is in the MCU, and is not actually part of the android software. That's my guess.
Does anyone know if a Bluetooth dongle to the USB will work? I have a spare one laying around.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
Did you solve this by using a Bluetooth dongle? did it work ?

Updates?
SaqibRyu said:
Did you solve this by using a Bluetooth dongle? did it work ?
Click to expand...
Click to collapse
Any updates on this topic? Can we replace the BT module with a usb version?

I have the same problem with the bluetooth in my Android auto >.<. Very bad sound when i connect my mobile via bluetooth. Anyone found a solution?
Sorry for my bad english.

SaqibRyu said:
Did you solve this by using a Bluetooth dongle? did it work ?
Click to expand...
Click to collapse
I tried, didn't work. I used a usb bluetooth dongle from my pc. Works on the pc, not on the unit. Maybe you will have better luck. Mine still sounds like garbage.

Here the same Problem! Very, very Bad.

Anyone had any luck with this topic? very annoying.

i have this problem on my MTCE XRC unit.

same problem on AE0273B
sev said:
i have this problem on my MTCE XRC unit.
Click to expand...
Click to collapse
Audio streaming over Bluetooth App from my iPhone (say from Pandora) is noticeably worse quality than using an app on the HU (say, Pandora App on HU). Do not have this problem streaming to other HUs (like the one built into the Prius) or my previous GTA Kit.

Headunit just to display android Auto

Hi to all,
I use Android Auto on my phone everyday. I have an old car and I would like to have a head unit that support Android auto so I only have to connect my phone, but besides the comercial ones from Pioneers and the such, the Android units like Xtron, Ownice,etc has the capability?
I have read a lot, but there is no definite answer.
Thanks in advance

ezmendriz said:
Hi to all,
I use Android Auto on my phone everyday. I have an old car and I would like to have a head unit that support Android auto so I only have to connect my phone, but besides the comercial ones from Pioneers and the such, the Android units like Xtron, Ownice,etc has the capability?
I have read a lot, but there is no definite answer.
Thanks in advance
Click to expand...
Click to collapse
You can DIY with this https://forum.xda-developers.com/an...elease-openauto-source-androidautotm-t3748563

Yes I can, but I am not the only one using the car. I want to maintain the radio functionality and integration. That is why I prefer to replace the headunit for something better that supports androidauto when I use the car.

ezmendriz said:
Yes I can, but I am not the only one using the car. I want to maintain the radio functionality and integration. That is why I prefer to replace the headunit for something better that supports androidauto when I use the car.
Click to expand...
Click to collapse
The MTCD headunits can run the Headunit Reloaded app which enables Android Auto..

leonkernan said:
The MTCD headunits can run the Headunit Reloaded app which enables Android Auto..
Click to expand...
Click to collapse
if you already have a pure android HU, what is the point of android auto? AA only makes sense on OEM or non-android-based HUs. It's very limited, unless you hack it to run AAmirror.

Hisma said:
if you already have a pure android HU, what is the point of android auto? AA only makes sense on OEM or non-android-based HUs. It's very limited, unless you hack it to run AAmirror.
Click to expand...
Click to collapse
It is easier just to enter the car and connect a cable to obtain the integration over the same unit and configuration like calendar, contact and messages. AndroidAuto give me all that I need in a day to day.
Evidently, these units need internet in order to give must of its features, the options are to give internet to the unit somehow with the same phone with the hotspot or cable. Obviously the easier is to it have its own sim card, but that will means another line that will be underused.

Output audio over bluetooth/aux

Using a samsung phone and cars factory head unit to project android auto over usb, is it possible to get the audio to out put from the phone over bluetooth or headphone jack so that it may be fed into a dsp for example instead of over usb and through the factory head unit? Disabling usb audio routing in developer options doesn't seem to do anything.

bilboxda said:
Using a samsung phone and cars factory head unit to project android auto over usb, is it possible to get the audio to out put from the phone over bluetooth or headphone jack so that it may be fed into a dsp for example instead of over usb and through the factory head unit? Disabling usb audio routing in developer options doesn't seem to do anything.
Click to expand...
Click to collapse
Anyone?

bilboxda said:
Anyone?
Click to expand...
Click to collapse
Where is the information for members to help?

marchnz said:
Where is the information for members to help?
Click to expand...
Click to collapse
Please let me know what info is required.

I have a Galaxy S9+ Stock ROM and i need the same as you.
I want pro keep audio over bluetooth while AA is projecting.

platbr said:
I have a Galaxy S9+ Stock ROM and i need the same as you.
I want pro keep audio over bluetooth while AA is projecting.
Click to expand...
Click to collapse
Let me know if you find a way.

Android auto crash head unit when try to listen music and bluetooth connection issue

I have been using android auto on my car head unit for some time and I realise there are two issues that makes me mad,
- I can not open any music apps (I tried poweramp, yt music and spotfy) Apps open fine but when I try to listen music system freeze or hangs and head unit must restarted to be usable again. Does anyone experience it ?
- When using android auto I checked bluetooth connection and I saw connection drops and then connects again, ofcourse bluetooth connection not neccesary as most data is transmitted through cable or wireless, bluetooth only relevant for calls. But it seems strange and I started to think there is an connection issue as first activation of android auto takes time sometimes failed.
Best Regards.

I'm facing same issues since my dasaita px6 head unit installed. Not happy , always mad
Thinking to purchase new HU, Not sure what brand to buy!!

Cameron32 said:
I'm facing same issues since my dasaita px6 head unit installed. Not happy , always mad
Thinking to purchase new HU, Not sure what brand to buy!!
Click to expand...
Click to collapse
You might not realise that your Dasaita (HA) is not Android Auto.

What do you mean? I know dasaita is android auto!!
---------- Post added at 12:38 AM ---------- Previous post was at 12:35 AM ----------
marchnz said:
You might not realise that your Dasaita (HA) is not Android Auto.
Click to expand...
Click to collapse
Please help me to find the better one without any issues. Thank you

Cameron32 said:
What do you mean? I know dasaita is android auto!!
Click to expand...
Click to collapse
??? Do you understand the difference between the Android OS, and Android Auto?

mike.s said:
??? Do you understand the difference between the Android OS, and Android Auto?
Click to expand...
Click to collapse
Yes I know the difference and dasaita is Android auto. What you trying to convey? If dasaita is not android auto then what brand model is android auto?

Cameron32 said:
Yes I know the difference and dasaita is Android auto. What you trying to convey? If dasaita is not android auto then what brand model is android auto?
Click to expand...
Click to collapse
Dasaita is not Android auto, it's a hacked chinese Android OS, but its not an Android Auto device.
https://www.android.com/auto/compatibility/

marchnz said:
Dasaita is not Android auto, it's a hacked chinese Android OS, but its not an Android Auto device.
https://www.android.com/auto/compatibility/
Click to expand...
Click to collapse
Thanks for your information, could please tell me the right product!!
I want to install headunit soon.

Cameron32 said:
Thanks for your information, could please tell me the right product!!
I want to install headunit soon.
Click to expand...
Click to collapse
https://www.android.com/auto/compatibility/

Performance Monitor

Hello, how to run the Perfomance Monitor. After installing it on the phone, it turns on only once on Android Auto, then an error pops up and the application no longer works. I know that its creator doesn't support it anymore and it was made mainly for VW but it also works with other cars.
Is anyone able to help?
Thank you and greetings to everyone.
Android: 13
A.A.: 8.7
Car: Ford Mondeo Sync 3

What is hesd unit.

marchnz said:
What is hesd unit.
Click to expand...
Click to collapse
Sync 3

Have you tried downgrading your AA version ?
Worked for me .

It's work for me.
Performance Monitor on SYNC3
https://imgur.com/a/huPvYBW

apong1984 said:
Dino game: It's work for me.
Performance Monitor on SYNC3
https://imgur.com/a/huPvYBW
Click to expand...
Click to collapse
How did you do?

Straight_OG said:
Have you tried downgrading your AA version ?
Worked for me . krunker
Click to expand...
Click to collapse
How to downgrade?

I'm not sure if the reason is the same but i had the same issue, i use torque pro to get data from the car but performance monitor couldn't start torque pro so it didn't work, i fixed it using macrodroid app to start torque pro the moment my phone bluetooth connects to the radio, hopefully it helps you