I have a head unit which has latest Witson mcu(mx 3.08) (with latest malaysk rom)(BluetoothWirelessChip is MD725). When dealer setup this headunit into my car they installed an external mic to top of the car. Problem is headunit always uses internal mic. Google voice search is working perfectly but with bluetooth calls my sound is bad.
I don't want to dissamble headunit. Is there anything I can try to make external mic work with software? (should i try different mcu's, firmwares, factory settings?, modifications). Because it's really hard to dissamble headunit from car..
traxformania said:
I have a head unit which has latest Witson mcu(mx 3.08) (with latest malaysk rom)(BluetoothWirelessChip is MD725). When dealer setup this headunit into my car they installed an external mic to top of the car. Problem is headunit always uses internal mic. Google voice search is working perfectly but with bluetooth calls my sound is bad.
I don't want to dissamble headunit. Is there anything I can try to make external mic work with software? (should i try different mcu's, firmwares, factory settings?, modifications). Because it's really hard to dissamble headunit from car..
Click to expand...
Click to collapse
I have the same problem in a Dasaita PX-5 (MTC-D) unit. Just discovered it a few days ago. I saw in another post somebody claiming that the main problem is that plugging and external mic on the jack does not disables the internal mic (they're in a parallel configuration rather than serial with the mic female jack disconnecting the electrical path of the other mic when something is plugged in). Also, the post stated that the electrical path between the mic and the first chip (Bluetooth?) using the mic signal was long enough to act as an "antenna". If all this is right, I don't think it can be solved with SW settings.
I'm planning to disassemble the unit in a few days as anyways I need to fix other connections and will report back here what I find and if I manage to improve the mic quality on voice calls.
Kr
Max
maxiauer said:
I have the same problem in a Dasaita PX-5 (MTC-D) unit. Just discovered it a few days ago. I saw in another post somebody claiming that the main problem is that plugging and external mic on the jack does not disables the internal mic (they're in a parallel configuration rather than serial with the mic female jack disconnecting the electrical path of the other mic when something is plugged in). Also, the post stated that the electrical path between the mic and the first chip (Bluetooth?) using the mic signal was long enough to act as an "antenna". If all this is right, I don't think it can be solved with SW settings.
I'm planning to disassemble the unit in a few days as anyways I need to fix other connections and will report back here what I find and if I manage to improve the mic quality on voice calls.
Kr
Max
Click to expand...
Click to collapse
I just read that someone managed to make external mic working with just an older mcu update (2.60). I'll definitely try this.
traxformania said:
I just read that someone managed to make external mic working with just an older mcu update (2.60). I'll definitely try this.
Click to expand...
Click to collapse
Well, after inspecting the unit, I can confirm that at least the Dasaita ones DO disconnect the internal mic when connecting an external one. But seems that audio quality on calls is a widespread issue. Will keep on checking, but things seem to point to the on-board Bluetooth Chip and some people claims "some" external USB Bluetooth dongles are compatible.
traxformania said:
I just read that someone managed to make external mic working with just an older mcu update (2.60). I'll definitely try this.
Click to expand...
Click to collapse
Have you tried this? Does it work? Noticed my rear (external) mic isn't working too. MCU version 3.3
Any update on this one, I am connecting external MIC on dasaita max6 px6 and feeling that internal is still enabled ?
also what is the best location to put the external mic to ave best sound from driver's mouth ?
Hello, i have the same problem with my external microphone on my Dasaita PX6 MAX6.
First of all i should say it was very rough ride even to get my unit. They put ridiculous discount on aliexpress to hook up people to order, then they say "uh-oh sorry but overseas warehouse are empty, please cancel your order" so then you check again and see that there are still units available but the price now is x2 suddenly and surprisingly!
When i told them 'no, i will not cancel the order, i need the unit' - they started to slowly reply on my messages with murky and unclear answers going days and days until finally i put them to the wall and send it to my address in another country.
Their english speaking i think is very bad on purpose.
Second of all - now this problem with the external mic.
Ever since i installed this HU (around 2 months maybe) my friends complain they hear me very bad while talking on the phone. It was just the other week that i got the time to investigate and lo and behold even when the external mic is plugged in - the internal built-in one is still active. I tried 10 times unplugging and plugging, restarting etc but no - still the internal is active.
Knowing the aliexpress-Dasaita are very bad at communicating i contacted facebook-Dasaita. They told me to install the latest firmware - which i did, and nothing changes. Then they told me to contact Dasaita on aliexpress.
I contacted Dasaita aliexperss explaining what i did and the answer is basically: install latest firmware. If it does not work - use the built-in mic.
What the F!>.... Dasaita... Didn't you F-in understand that the internal mic is $h!7? And you sold me problematic unit? ...
https://imgur.com/C8jsu6r
Obviously i will avoid them in the future. They are tricky and deceitful, lie and hide on pretty much every step and run away from their problems, and just trow in some "solution" just because something should be answered... And until someone puts their balls to the wall they will do that...
Now, if anyone else from here can advice how to fix this if he had already fixed his one, please do it will be very much apppreciated.
Thank you
Previously discussed, disconnect internal mic hardware. Have a search for more - detailed info, also MTCB section where this issue was more common.
Agree with comments regarding how Chinese sellers operate on AliExpress, they all seem to be the same. Would be good if they were mandated to honour purchaser local consumer laws.
maxiauer said:
Well, after inspecting the unit, I can confirm that at least the Dasaita ones DO disconnect the internal mic when connecting an external one. But seems that audio quality on calls is a widespread issue. Will keep on checking, but things seem to point to the on-board Bluetooth Chip and some people claims "some" external USB Bluetooth dongles are compatible.
Click to expand...
Click to collapse
So I know this was posted a while ago but I have the PX6 10.2 Dasaita and my external mic won't work, even when it's plugged in it still uses the Internal mic and doesn't "register" there's an external mic attached it's garbage. do you know how I would be able to make the external mic work?
Hi, I'm having the same issue, what did you end up doing if I may ask?
psycho.b94 said:
Hi, I'm having the same issue, what did you end up doing if I may ask?
Click to expand...
Click to collapse
Just as has been done since the wince units; disconnect the internal mic. Have a browse through.
marchnz said:
Just as has been done since the wince units; disconnect the internal mic. Have a browse through.
Click to expand...
Click to collapse
Just disconnecting internal mic and adding external mic through mic jack is enough to make external mic work?
After a read thru forums, you could post what you find and ask clarifying questions. Just a suggestion.
Is there a way how to exactly check internal/external mic quality? Or identify which one is in use? I have bought external mic for XTrons PX6 Android 11, MTCH. If I plug mic in, I see no difference. Sound quality is quite good anyway so I am not sure if install external mic I already payed for.
Troll_CZ said:
Is there a way how to exactly check internal/external mic quality? Or identify which one is in use? I have bought external mic for XTrons PX6 Android 11, MTCH. If I plug mic in, I see no difference. Sound quality is quite good anyway so I am not sure if install external mic I already payed for.
Click to expand...
Click to collapse
What has been considered after a searching and reading forums, there is a lot of information covering this issue.
Related
Hi
I got a sound problem with my new ASUS P535, in which the phone is all the time thinking that i'm using the headset even when its unplugged, so no sound can be heard even the headset is unplugged only when somebody calls there is the ring tone, but nor the mike or the phone speaker are working
Any ideas?!?
P.S. I'm using WM6, & I already tried to flash it many times for no results!
Bash
Hi,
I had the same problem with my p535, but I found the way to fix it. The problem is that the micro switch was jammed in the headset-port, so to fix the problem; you should just hit hardly the bottom of the PDA onto a table or other hard surface. There is no problem with the software.
Regards,
Sagramor de Zyn
I have tried this solution but it didn't work.
Are you sure this is the only way to fix this problem.
Also when i use the device with the headset, the sound of the MP3's are like you listen something under water. And during a call, the opponent's voice sounds so deep, i can hardly hear it.
Than you have a bit bigger problem, the hole port is ****ed, maybe one of the connection is broken or the hole port is moved from where it should be. It just happening with mp3 or with phone as well? if the phone is not working as well with the headset, than you have to bring to service, 'couse the port is broken, if just the mp3 not workin' than I don't have a clue.
Sagramor de Zyn said:
Hi,
I had the same problem with my p535, but I found the way to fix it. The problem is that the micro switch was jammed in the headset-port, so to fix the problem; you should just hit hardly the bottom of the PDA onto a table or other hard surface. There is no problem with the software.
Regards,
Sagramor de Zyn
Click to expand...
Click to collapse
It worked for me! Thanks a lot!
I thought my PDA speaker was crapped someway..
Anyway, I did not hit it, just plugging in and out the mini jack connector several times within a short time.
Regards,
Xel
Sagramor de Zyn said:
Hi,
I had the same problem with my p535, but I found the way to fix it. The problem is that the micro switch was jammed in the headset-port, so to fix the problem; you should just hit hardly the bottom of the PDA onto a table or other hard surface. There is no problem with the software.
Regards,
Sagramor de Zyn
Click to expand...
Click to collapse
It worked for me as well Thanks a lot!!!!!!
Bobek
Sound problem again (mini jack connector replacement)
Hello again!
My P535 made a long way since the prevoius sound problem.
My device's mini jack connector has been damaged, and I wish to replace it with a new one.
Could anyone help me how to replace the mini jack connector? Unfortunatelly the oroginal connector was so badly damaged that it cannot be used anymore.
My device cannot play sound and cannot record any voice, but the speaker and microphone is fully intact though. I have to repair it but I don't know what type of mini jack connector I need. I heared that if I use some incompatible connector that could damage the device for good.
I'd also find out that two wire must contact to allow the internal speaker and mike to function, for now, the device "thinks" a jack cable is plugged.
Sorry for my bad english..
Could anyone help?
Regards,
Xel
well, I have a bluetooth ad2p stereo headset (platrinocs), but the akkumulator got busted so I'm in a hurry to repair my phone's analog mini jack output, that will will solve the speaker and mike problem too.
/hovewer, the wireless bluetooth headsets has a serious disadvantage
It cannot connect automaticly to the bluetooth headset when a phone call is incoming, or when you enter proximity whith the headset or with the device (if you left either on desk). i've tried patches and apps to make autoconnect available, but no luck.. analog output is much more advance then bluetooth high quality audio for one reason the hardware eq and software mixers/
the main problem, is that the old mini jack output is damaged to dust, i cannot recognize it which type to replace. googling the specs of the device did not helped me identifying the mini jack connector. I've learned that there are many types, some of them are used to headset functions different at model types, even differs at manufacturers.
Please, anyone could help I would greatly appriciate it!
bye,
Xel
Contana said:
I have tried this solution but it didn't work.Are you sure this is the only way to fix this problem.
Click to expand...
Click to collapse
check mini jack output, plug in and move a bit carefully the mini jack cable in output.
probably some air duster or contact spray could help too.
bye,
Xel
thnx a lot... u r great! it works! u r my hero...
Hallo,
I got my new MTCD head unit. Its this one:
http://www.erisinwholesale.com/special-car-dvd/audi/erisin-es3078a-7-android-51-car-dvd-gps-dab-for-audi-a4-497.html
I have dont done much testing yet, but i want to connect my external mic first.
The HU is delivered with an small additional harness that included a external mic and a 4-pin connector on the other end. (see attached photo - connector E)
I want to cut this harness and solder a standard mic-jack onto it.
(and then desolder the internal mic)
Does anyone know the pin-out of this 4-Pin connector?!
I guess this is standard on many of the newer MTCD units?!
check with ohmeter the ohm value between gnd and signal and use similar specs mic.
Dear OP, Im very interested in you project. I have nearly the same unit but for A3. I also wanted to wait with the mic until i come up with a better solution than using the one which came with it. Do you know how to disable the standard handsfree function of the car? Now the "Mode" button always messes with the Mode of the headunit. Where is the cars' mic plugged into? How can I access this spot?
in some (i think it was russian) forum i came across the ROM wich connects via Bluetooth to the standard handsfree of the car before calling. But with the standard Rom so far i was not able to conect to it.
PS: Does your unit snap into the DIN booth like the original radio? Mine does not snap in and therefore is kinda loose
i am not sure how to measure the correct ohm value of a mic.
If i connect my multimeter to the factory ext. mic, i see 1,325 kOhm
If i connect it to my parrot mic, i see 1,660kOhm (i have attached a photo of this mic)
But anyhow, i am more interessted in the 4-pin plug, this head unit uses for the ext. mic. hook up.
As you can see on the attached photos, the lower two pins are jumpered.
And the upper two pins go to the mic.
I also found, that one of those two lower pins is a 5V supply on the head unit.
So this harness of the factory external mic seems to have some sort of switch function also...
But i am not sure, what it does...
And to answer Mighty_X´s questions:
I have no "mode" button on my head unit. Not sure, what you mean.?!
On my older MTCB unit, i just cutted the wires to the internal mic, and connected my parrot mic to the ext. mic connection.
But here, on this new Erisin MTCD, all connectors at the back of the unit are different...
regarding accuracy of fit:
The head unit didn´t fit in perfectly. Its a little bit wider at the bottom, than the original radio. If you carefully push a little harder you get it into a very good position. The cars dashboard is flexible enough for that. But thats not really a problem and its definitely not loose.
Pedaaa said:
And to answer Mighty_X´s questions:
I have no "mode" button on my head unit. Not sure, what you mean.?!
On my older MTCB unit, i just cutted the wires to the internal mic, and connected my parrot mic to the ext. mic connection.
But here, on this new Erisin MTCD, all connectors at the back of the unit are different...
regarding accuracy of fit:
The head unit didn´t fit in perfectly. Its a little bit wider at the bottom, than the original radio. If you carefully push a little harder you get it into a very good position. The cars dashboard is flexible enough for that. But thats not really a problem and its definitely not loose.
Click to expand...
Click to collapse
Thanks for your answer. I was refering to the Mode Button on the steering wheel.
Ahh, OK sorry
I only have the standard steering wheel without any buttons, so i can't comment on this
dont worry about 4pin conn, just check that the mic you want to use in head unit support that ohm input, otherwise the sound quality wont be good, just make "test-fail" until you get good result. just connect to 2 wires mic the mic you want to test...
But i do worry about this 4-Pin connector
If you connect the original ext.mic, the lower 2 pins are jumpered.
What internal effect would this have?
Is it just an input, that an ext. mic is connected?!
But why? Would the singals of the mic wont work without this input?
Or will this input maybe disable the internal mic?!
Then we wouldnt need to do the mod, by desolder or cut the internal mic on such units.
Thats just my thoughts, but i haven't done testing yet. Also i am not sure how i could figure it out exactly...
Pedaaa said:
But i do worry about this 4-Pin connector
If you connect the original ext.mic, the lower 2 pins are jumpered.
What internal effect would this have?
[..]
Thats just my thoughts[...]
Click to expand...
Click to collapse
Well, on my unit (Erisin 3047A) the ONLY reason why the lower 2 pins are "jumpered" is purely a mechanical issue: By having 4 wires and tied them together using a cable tie the two upper (small) cables are fixed in place. So: No actual use, just for mechanical reasons.
Did you have a cable tie on your 4 wires? From your pictures I cannot see it, perhaps you removed it?
Well, I just used my external micro from the installation before, and it works great.
Kind regards,
hardcoded74
Hi,
Ok, there were no reasons for my concerns.
I unsoldered the interal mic.
And then i soldered a headphone jack to the two wires of the original ext. mic harness.
The didnt touch the lower jumper wire.
And now:
It works great with my parrot mic! No echo, and really good quality in general! I am very happy now.
I also now installed a time-delay-relay for my rear view cam. Now the cam keeps going for apprx. 8 seconds, if i change to forward gears. Thats a great improvement also, that i can recommend
Pic of the modified harness
please poiint out, what headphone you used for this and the cables (by color) you connected to. (red to white for example)
thanks
Hello,
I use a PR2627 Parrot Twin Mic.
I cutted the standard ext mic and soldered a 2,5mm female jack instead of it. The white lead from the original cable goes to the "left" connection on the jack.
So the tip of the male 2,5mm pin will contact the white cable.
The black lead goes to the ground connection of the jack.
Thats it.
So, i use this Stereo mic only as a mono mic.
But it works great.
But i have to say also the original ext. mic. isnt that bad, if you disconnect the internal one.
I want to try to use the original Audi microphone. The ohmmeter says the Audi is 7,9kOhm and the mic wich came with the Erisin is 0.9kOhm. Is it possible to get good results here? What do you guys think?
I ll have to search were the wire goes wich is not to easy in Audi A3 (at least for me)
Edit: Like I thought the quality of the original mic used with the new head unit is pretty poor. dumb and very quiet. Not sure now if i get another mic, use the erisin one or maybe try a mic amplifier..
So if I understand this correct, the headunit keeps using the signal from the internal mic, even if there is an external mic connected? In essence, it gets mixed? No wonder everybody on the other end of the line is complaining that they don't understand a word I'm saying.
Is it easy to unsolder the internal mic?
HVB83 said:
So if I understand this correct, the headunit keeps using the signal from the internal mic, even if there is an external mic connected? In essence, it gets mixed? No wonder everybody on the other end of the line is complaining that they don't understand a word I'm saying.
Is it easy to unsolder the internal mic?
Click to expand...
Click to collapse
Can someone confirm this or disagree?
Mighty_X said:
Can someone confirm this or disagree?
Click to expand...
Click to collapse
You couldnt find the answer in the entire thread devoted to this issue Yes; if an an external mic input is factory, it is in parallel with the internal mic. This is a rookie design mistake.
Is there a way to change sensitivity of the external mic input? Did not find an option in the factory settings..
I unsoldered the internal mic now too. After first tests I can say say that doing that had no effect on the input sound quality or anything at all. And i found out that the internal and external mic wich came with it arethe same piece of hardware. I still wonder if there is a way to increase intensity of the mic without going over hardware amplifier. Have a kinda newer Ersisin model I guess
I am having an issue the sound from my head unit. It was working great and then... Poof. it stopped working.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Link above is the model head unit i bought. is there anyway to get it working again?
I did install an updated MCU per (successfully)
https://forum.xda-developers.com/and...mware-t3816042
and it did not seem to change anything.
The screen works, all apps work, volume shows it is turning up and down but nothing out of the speakers. see video link of the issue below.
https://drive.google.com/file/d/1BNB...w?usp=drivesdk
Also, I do not have a factory amplifier.
Thanks everyone! any help would be Great!
kaluna00 said:
I am having an issue the sound from my head unit. It was working great and then... Poof. it stopped working.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Link above is the model head unit i bought. is there anyway to get it working again?
I did install an updated MCU per (successfully)
https://forum.xda-developers.com/and...mware-t3816042
and it did not seem to change anything.
The screen works, all apps work, volume shows it is turning up and down but nothing out of the speakers. see video link of the issue below.
https://drive.google.com/file/d/1BNB...w?usp=drivesdk
Also, I do not have a factory amplifier.
Thanks everyone! any help would be Great!
Click to expand...
Click to collapse
What steps have been taken to diagnose the issue.
Also what have the installer or reseller advised?
marchnz said:
What steps have been taken to diagnose the issue.
Also what have the installer or reseller advised?
Click to expand...
Click to collapse
I reinstalled the stock radio, in the speakers work. So does not a wiring issue from the harness to the speakers. My guess is it something in the amp of the head unit itself.
kaluna00 said:
I reinstalled the stock radio, in the speakers work. So does not a wiring issue from the harness to the speakers. My guess is it something in the amp of the head unit itself.
Click to expand...
Click to collapse
I also tried a factory reset with no success
kaluna00 said:
I also tried a factory reset with no success
Click to expand...
Click to collapse
Any ideas? Is this a hardware issue?
Thanks in advance!
Yes definitely a hardware issue. Do you like to play it loud? There was a load of heatsink compound between the amplifier chip and the case in my HU indicating a fairly large gap between the two. Should your HU have similar poor assembly the amp could have blown even if they're supposed to have thermal protection. It's also possible that at least one solder could have broke. If you can connect an amplified speaker or headphones to the line out you could find out if audio is making it out of the mixer chip at least.
nic2k said:
Yes definitely a hardware issue. Do you like to play it loud? There was a load of heatsink compound between the amplifier chip and the case in my HU indicating a fairly large gap between the two. Should your HU have similar poor assembly the amp could have blown even if they're supposed to have thermal protection. It's also possible that at least one solder could have broke. If you can connect an amplified speaker or headphones to the line out you could find out if audio is making it out of the mixer chip at least.
Click to expand...
Click to collapse
Thank you sir. I'm going to try to connect it back up and see if I can run it to a Bluetooth speaker. Until I get my new one. Better than having a hole in the dash I suppose.... also I did see the amplifier chip you're talking about it looks like it does have thermal paste and is screwed tightly to the back heat sink area . Thanks again
Hi, how did you fix the issue?
Hi I have an Ekiy android 10 t7 unit, I installed a external mic, connected it, and works, but now the radio pic up both, how I disable the the head unit.
I can find the options.
Thanks guy
What you do is dismantle the unit and smash the internal mic with a big hammer. Or less dramatic, disconnect the internal mic.
The seller has just told me that, is that to complicated?
Will you please give me more instructions?
Opened up, two cables, cut them and finish, external mic working, not the best mic yet, have to donde a better option...
***Update* Resolved!
Hello good people, this is my first Android head unit and after some research bought the Ultra Plus. Got it installed yesterday at an installer, picked it up and drove home. The sound was working albeit too loud so had it at the lowest level and turned off the loudness. This morning, I started the car and no sound was coming form any of the sound sources - SD card songs, Bluetooth songs or radio. I reset the device and still no sound after the reset. Any advice that can help will eb greatly appreciated.
am I late? Check out the wiring and connect an external speaker to see if you can hear the sound, also check the amplifier if the car owns.
cocodeng said:
am I late? Check out the wiring and connect an external speaker to see if you can hear the sound, also check the amplifier if the car owns.
Click to expand...
Click to collapse
Did that while testing and it worked with an external speaker. Changed the wiring harness from an Axxess to a PAC and now it works.