Poor mic quality on BT calls - MTCD Android Head Units General

Hi there,
I am having some troubles at this PX6 unit: http://vanku.tech/index.php/products/aa0602b/26
When calling via bluetooth on CarPlay adapter the microphone quality is so poor that the caller can't hear anything. I have read that the issue is caused due to the internal microphone. If I disconnect this, then the external mic should work fine. Do you have any manuals or circuit diagrams on how this exactly works on this PX6 board?
Thanks in advice!

To disconnect the internal microphone and connect an external microphone follow the instructions in this video:

Related

Attention registry hackers...

Can anyone help me with this:
I have always used my PPC's in my car connected to an external audio jack via a 3.5mm headphone connection. Not only did I use this for music, but it also allowed me use my car stereo to hear my callers much louder than the speakerphone was capable and still let me to use the built-in mic of the PPC to talk back.
Enter my Artemis and it's proprietary mini-usb audio jack...
I purchased the HTC mini-usb to 3.5mm adapter from expansys so that I could continue to use my in-car 3.5mm connection. Works great for music and TomTom (Austin Powers is scary loud now when he tells me to turn left!) BUT the built-in microphone in the Artemis seems to be disabled whenever the adapter is inserted in the mini-usb jack! I can't use Voicecommand with it inserted and my callers can't hear me until I pull out the adapter - which then takes away my nice loud car stereo to hear them!!!
Presumably, the disabling of the mic is because the mic in the included headset is expected to be used for calls when the audio jack is occupied. I know my configuration is not "standard," but it works (or worked) great for me and I would love to be able to continue to operate this way.
My question is: can anyone tell me which registry values control when the built-in mic is disabled? There must be a value that tells the Artemis to shut off the built-in mic when the headset is plugged in. I would love to change this so that the configuration I described above will work for me again. I have some trepidation about tinkering with my registry too much when I don't have that much experience with it. I hope there is some registry guru out there that will take pity on me and take on this challenge (if it's even possible).
Thanks in advance!
You'll have problems with something like this... I'd assume that it'll work similarly to the headset antenna registry entry, where on connection of the headset a key relating to the FM Radio software is changed from a 0 to a 1 allowing the application to launch.
There are one of 2 outcomes for you though unless you want to get crafty with a button or something to make the changes for you....
1 - Although you'll be able to change the reg setting, plugin in the usb cable or disconnecting it will simply reset the key,
2 - You'll permanently change it and if you want to use anything other than the handset mic you'll need to undo the change.
I'd say more than likely if it a dymanic key though and triggered by connection or disconnection of the usb cable then option 1 will take effect. I'm guessing that you'll need a button (software or hardware assigned) to control this properly.
Good Luck!
I'm too lazy to read.
Check the state and notification broker. Otherwise you'll probably have to directly interface with the audio driver.
V
Me too...?
Hi all,
I too want this fix, using the microphone whilst drawing off the audio feed for my vehicle stereo. Can it not be done with a soldering iron & external mic wired into the dongle adaptor?
Thanks Paul
http://shop.brando.com.hk/htcstereoconverterwithmicrophone.php
Here is an adapter with microphone...
I suggest hacking a handsfree and making your own jack for the car. this is my plan soon!
Hi All,
I have the same problem with my HTC Diamond. Did anyone have a fix for this yet? As i do not mind changing the registry or if someone wanted to make a little program that would do this i would be more then happy to donate for all your troubles.. I'm unable to hack my fm transmitter as it is a holder aswell... see picture
Anyone with a concrete solution?
This seems to be a hot topic! Are we really sure that adapters with mic are not readily available?
If you're au fait with hardware hacking, haret can probably tell you which interrupts are being used and you can write a solution to poll the irqs that way.
V
There is nothing to do with Registry Hacking or Softwares in your case...
psargent said:
Can anyone help me with this:
I have always used my PPC's in my car connected to an external audio jack via a 3.5mm headphone connection. Not only did I use this for music, but it also allowed me use my car stereo to hear my callers much louder than the speakerphone was capable and still let me to use the built-in mic of the PPC to talk back.
Enter my Artemis and it's proprietary mini-usb audio jack...
I purchased the HTC mini-usb to 3.5mm adapter from expansys so that I could continue to use my in-car 3.5mm connection. Works great for music and TomTom (Austin Powers is scary loud now when he tells me to turn left!) BUT the built-in microphone in the Artemis seems to be disabled whenever the adapter is inserted in the mini-usb jack! I can't use Voicecommand with it inserted and my callers can't hear me until I pull out the adapter - which then takes away my nice loud car stereo to hear them!!!
Presumably, the disabling of the mic is because the mic in the included headset is expected to be used for calls when the audio jack is occupied. I know my configuration is not "standard," but it works (or worked) great for me and I would love to be able to continue to operate this way.
My question is: can anyone tell me which registry values control when the built-in mic is disabled? There must be a value that tells the Artemis to shut off the built-in mic when the headset is plugged in. I would love to change this so that the configuration I described above will work for me again. I have some trepidation about tinkering with my registry too much when I don't have that much experience with it. I hope there is some registry guru out there that will take pity on me and take on this challenge (if it's even possible).
Thanks in advance!
Click to expand...
Click to collapse
There is so many ways of soldering of wires (Line IN & Line OUT) using a mini usb to made your PDA more compact...
The built-in microphone in the Artemis or Any other HTC Devices sure have to be disabled whenever the adapter is inserted in the mini-usb jack for the soldering of 2 Line-Out (Audio-Out Left & Right) and 1 Line-In (Audio-In/Microphone) Example: Headset that come with your PDA.
Unless HTC going to make one mini-usb to two cables,one for 3.5mm adapter for headphone and another to Mic.jack or a Microphone itself.
This is quite difficult for HTC to custom a cable or jack for individual need.
I think you have to DIY for your need in this case:
Use the headset that come with your Artemis, the one that have a Mic and mini-usb jack...
Cut away the left & right earphone, soldering the two cables into a 3.5 jack (male or female)
Both this jacks-Male or Female can be found in electronic spare-part shop anywhere.
I'm new in this forum... please cc this Thread to me 'thru Private Messages, so that i can give further help and keep track how the going you guys out there...

Bluetooth car radio microphone no output volume

Hi chaps, I have a new bluetooth car radio but the mic outputs really low volume, before I start moaning to the suppliers of the unit is it at all possible that it's something to do with my Artemis ? (it pairs fine and I can hear people calling me, dial tone etc) many thanks Roger

[Q] Bluetooth carkit problem: mutes external microphone

Hi,
I'm having this strange problem with my carkit JVC-KD811 and my desire. When i pair them everything looks ok, phone book is getting transfered so far so good. But when i make a call, radio mutes and i can hear people talk, but they can't hear me. They can't hear me using the external micophone connected @ radio not the 3.5 mm plug in phone, nor using the internal mic. It's like the phone mutes both external and internal microphone if it's connected with bluetooth headset. Hoping someone can help me out, because i'm reading other people don't having issues with the type of car radio.

Microphone is too silent when G4 is connected to car radio

Dear All,
I have a quite big problem, when I want to make a phone call in my car.
I connect the phone's audio out via a minijack to my car's radio and I want to use my phone's built in microphone for phone calls.
Unfortunately the mic does not record my voice loud enough. When I use the phone's built in loudspeaker it works fine, but when I use the car radio as sound output the mic does not record loud enough.
Does anybody know how to solve this issue?
My Samsung Galaxy Note 1 had a car mode available for this.
Thanks!
Simply, the headphone jack also contains the mic connector for a proper phone head/earphone and mic. Plugging your phone into your stereo via this jack disconnects the internal mic in favour of the headset mic which of course you won't have if you connect to the car stereo. So you are effectively disabling the ability to use the phone for calls when plugged in this way.
But the mic is NOT disabled. It is still enabled but is recording the voice as if it is being used like in a normal phone call. All I need is a function to switch the mic to some kind of a handsfree mode.
Sorry for my English.
With "normal phone call" I mean the phone being held right at your ear.
With "handsfree mode" I mean speakerphone mode.
So I need the audio out via stereo jack and I need the voice in via phone microphone in speakerphone mode...
Can you try using a cable that doesn't pass microphone? I think the difference is the full cable WITH mic uses 3 connections and the standard audio only uses 2.
This will prevent the internal microphone from being disabled.
player911 said:
Can you try using a cable that doesn't pass microphone? I think the difference is the full cable WITH mic uses 3 connections and the standard audio only uses 2.
This will prevent the internal microphone from being disabled.
Click to expand...
Click to collapse
I already use a standard audio cable with 2 connections only. The problem is not that the microphone is not working at all but it is not recording loudly enough. I simply want it to record as loudly as it does on speakerphone mode.

Bluetooth Calls Problem

Hi everyone I have a S07, RK3188 MTCB-RZ-v2.83 1024x600.
When bluetooth is active for hands-free calls, audio is not heard either as input or as output.
I tested the microphone and it works. In addition, the bluetooth multimedia audio function works properly,
in fact, I can hear the sound of my applications/videos in the phone via bluetooth from the car cases.
The phone connects properly with all the synchronized contacts.
But... While I call or receive calls I can not hear and can not speak.
Why? Help me please ...
I had to switch the front and rear speakers. My jeep uses a stock Boston acoustic amp and it only uses the front for Bluetooth calls , however, due to the canbus adapter, and only rear is pushed through to all 4 speakers. Flipping rear and front at the harness corrected my issue and calls / media play fine now.
Sent from my SM-N950U using Tapatalk

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