Bypassing audio DSP in android head unit - Android Q&A, Help & Troubleshooting

Hello everyone, I’m and audio engineer and not a developer, but I thought you guys might be able to help me with something.
I purchased a android unit for my car (2016 Range Rover), it uses the cars factory audio system, it can mirror the stock screen to the new android screen (for access to settings and cameras), and it feeds its audio output to the Aux input of the car or Bluetooth from the android to the cars factory Bluetooth.
Everything functions beautifully, however the sound quality is terrible. There is a “DSP” screen in their GUI, when adjusting any of the parameters I can tell the DSP / EQ is possibly the cause of the issue.
I downloaded an app that shows hidden apps and found “MagicEQ” installed, I disabled it but the audio continues to sound the same.
I’m wanting to disable any processing of the audio and simply send an unmodified audio signal out of the android via it’s analog output and/or it’s Bluetooth connection.
My questions are:
-Is there anywhere else I can look to see if there are any other hidden EQ settings?
-any tips on how to find any other apps or processes that could be tampering with the audio signal?
-are there any apps that could be installed that would override any audio processing that’s currently happening?

Sound777 said:
Hello everyone, I’m and audio engineer and not a developer, but I thought you guys might be able to help me with something.
I purchased a android unit for my car (2016 Range Rover), it uses the cars factory audio system, it can mirror the stock screen to the new android screen (for access to settings and cameras), and it feeds its audio output to the Aux input of the car or Bluetooth from the android to the cars factory Bluetooth.
Everything functions beautifully, however the sound quality is terrible. There is a “DSP” screen in their GUI, when adjusting any of the parameters I can tell the DSP / EQ is possibly the cause of the issue.
I downloaded an app that shows hidden apps and found “MagicEQ” installed, I disabled it but the audio continues to sound the same.
I’m wanting to disable any processing of the audio and simply send an unmodified audio signal out of the android via it’s analog output and/or it’s Bluetooth connection.
My questions are:
-Is there anywhere else I can look to see if there are any other hidden EQ settings?
-any tips on how to find any other apps or processes that could be tampering with the audio signal?
-are there any apps that could be installed that would override any audio processing that’s currently happening?
Click to expand...
Click to collapse
Hello and good afternoon, @Sound777
Welcome to XDA. I hope you'll always find and get the solution you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved your post to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke

Oswald Boelcke said:
Hello and good afternoon, @Sound777
Welcome to XDA. I hope you'll always find and get the solution you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved your post to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Click to expand...
Click to collapse
My apologies, thank you for moving it. I look forward to hearing thoughts / advice from you all.
Thanks!

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[Q&A] [developer needed] Android device as bluetooth headset for phone

Q&A for [developer needed] Android device as bluetooth headset for phone
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.
Before posting, please use the forum search and read through the discussion thread for [developer needed] Android device as bluetooth headset for phone. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.
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Any news on bluetooth handsfree support? (to use an android device as a BT headset)
Hello,
Anything new on the ability to use a tablet (or any android device) as a BT handsfree device? To receive and make calls with the tablet using any phone that supports BT (the tablet being seen and used as a BT headset by the phone).
Seen many threads on internet about that, but nothing recent, and no solution… So what's new in 2015? What about Android 4.4.2 and the coming Android 5?
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I'm waiting for this as well... want nexus 7 (2013) to take and make calls from xperia z3 over bluetooth... I am happy to pay/contribute if someone can make this happen...
p.s. as per google nexus 10 has handsfree profile, maybe something from that device's rom can be taken? https://support.google.com/nexus/answer/6048862?hl=en-AU
infra4800 said:
I'm waiting for this as well... want nexus 7 (2013) to take and make calls from xperia z3 over bluetooth... I am happy to pay/contribute if someone can make this happen...
p.s. as per google nexus 10 has handsfree profile, maybe something from that device's rom can be taken?
Click to expand...
Click to collapse
I am not sure that this is what it means…
It says:
Hands-free profile (HFP 1.6): Allows you to use your device with Bluetooth headsets and hands-free kits.
Click to expand...
Click to collapse
I understand that it allows to use a hands-free kit with the Nexus 10, and not using the Nexus 10 as a hands-free device… Maybe someone with a Nexus 10 can confirm?

Sending media through mono bluetooth

I have a Samsung galaxy note 10 plus, which is rooted with magisk if that makes any difference. My car only supports calls. I want to stream my music, as though it is a call, to my car. I have considered setting up a ras pi with some program I'm sure I could make to get it to streak music it takes from the Bluetooth of my phone, to a call that is connected back to my phone and therefore coming through the car. But I would rather find some way to use only my phone. I have tried a few Bluetooth mono router apps but they are either inconsistent or don't work at all, unless I am missing something. If it makes any difference I ideally want to stream via yt music vanced however I have been testing with other apps also.
Any help much appreciated
Ethan954 said:
I have a Samsung galaxy note 10 plus, which is rooted with magisk if that makes any difference. My car only supports calls. I want to stream my music, as though it is a call, to my car. I have considered setting up a ras pi with some program I'm sure I could make to get it to streak music it takes from the Bluetooth of my phone, to a call that is connected back to my phone and therefore coming through the car. But I would rather find some way to use only my phone. I have tried a few Bluetooth mono router apps but they are either inconsistent or don't work at all, unless I am missing something. If it makes any difference I ideally want to stream via yt music vanced however I have been testing with other apps also.
Any help much appreciated
Click to expand...
Click to collapse
@Ethan954 Welcome to XDA. I hope you'll always get the support you require.
Prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
I've moved the thread to Android Q&A.
Thanks for your cooperation.
Regards
Oswald Boelcke
Senior Moderator

Android 11 navigation - canbus doesn't work

Hi guys, I'm asking for some help. The car is an e46 with harman music, we installed android navigation, everything started, there is a picture, there is sound and tnt. However, when I connect the canbus to the coil, the multi steering wheel works and the coil buttons light up, but when I remove the ignition from the car (even removing the key), the navigation still works and the dashboard (of the car) does not go out. When I removed the canbus, everything is fine (but the buttons on the coil don't light up and the multi doesn't work).
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Viksana096 said:
Hi guys, I'm asking for some help. The car is an e46 with harman music, we installed android navigation, everything started, there is a picture, there is sound and tnt. However, when I connect the canbus to the coil, the multi steering wheel works and the coil buttons light up, but when I remove the ignition from the car (even removing the key), the navigation still works and the dashboard (of the car) does not go out. When I removed the canbus, everything is fine (but the buttons on the coil don't light up and the multi doesn't work).
My question is:
-Why, when I put the canbus into ignition and remove the key from the ignition, ignition does not stop working and the dashboard of the car does not go out.
I think the canbus is screwed up.
Click to expand...
Click to collapse
Hello and good morning, @Viksana096
Welcome to XDA. I hope you'll always get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
Note: Questions go in Q&A Forum
If you are posting a Question Thread post it in the Q&A forum. Technical discussion of Android development and hacking. No noobs, please. Device-specific releases should go under the appropriate device forum...
forum.xda-developers.com
and the others. I've moved your thread to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator

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adfunny said:
So I have the ipega 9217 controller and I wanted to play PUBG with the shootingplus v3 app to map the keys and the app updated my controller firmware and now it's useless, I tried formatting it with a sim tool and it didn't do anything. my controller flashes cyan coloured leds when power button is pressed. It also is undetectable on bluetooth and wired via USB, only shootingplus v3 detects it with a message saying (abnormal equipment detected) and it says its fully up to date. Anyone know a fix to this? (Sorry for bad grammar)
Click to expand...
Click to collapse
Hello and good afternoon, @adfunny
Welcome to XDA. I hope you'll always get the support you require.
However, prior to your next posting please read the guidances that are stuck on top of every forum like
[Read Before Posting]QUESTIONS DO NOT BELONG IN GENERAL
Hello Everybody, In order to attempt to keep this forum neat and tidy the moderation team is asking you to post your questions into the Questions and Answers (Q&A) forum and not into the General section. You can find the Q&A forum by clicking...
forum.xda-developers.com
and the others. I've moved your thread to Android Q&A.
Thanks for your cooperation!
Regards
Oswald Boelcke
Senior Moderator
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forum.xda-developers.com

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