Android Auto - Audio issues - Oppo R7 Plus

Hello all... Hoping to get some help for my unlocked AU Oppo R7plus f handset with ColorOS 2.1.1. I have a new car with Android Auto, and my phone doesn't seem to function correctly.
I've enabled developer mode to enable USB debugging which allowed my handset to be detected by my car but the audio quality is distorted using Android Auto. It isn't streaming audio quality I am referring too - all google and navigation commands and music stored on my phone have the same issue.
Its not the car or the USB cable as I've tested my Samsung and Apple handsets and they work with my car.
What else can I try?
Can you safely uninstall ColorOS and install Android Marshmallow instead? I'd need guidance
Any idea on when ColorOS 3.X will be released?
Thanks in advance!

Lukey G said:
Hello all... Hoping to get some help for my unlocked AU Oppo R7plus f handset with ColorOS 2.1.1. I have a new car with Android Auto, and my phone doesn't seem to function correctly.
I've enabled developer mode to enable USB debugging which allowed my handset to be detected by my car but the audio quality is distorted using Android Auto. It isn't streaming audio quality I am referring too - all google and navigation commands and music stored on my phone have the same issue.
Its not the car or the USB cable as I've tested my Samsung and Apple handsets and they work with my car.
What else can I try?
Can you safely uninstall ColorOS and install Android Marshmallow instead? I'd need guidance
Any idea on when ColorOS 3.X will be released?
Thanks in advance!
Click to expand...
Click to collapse
I have exactly the same issue.

I have come across this issue on updating my car radio to one that is Android Auto compatible (Hyundai i30 GD-03 radio). My phone is an Oppo R7sf ColorOS 2.1.0i, Android 5.1.1.
'All' music, voice directions, Google assistant, youtube audio come through with a horrible distortion with the original signal barely audible beneath. The distortion is a short transient produced every 43ms (approx 23Hz).
I initially thought it could be some sort of electrical interference issue (but surely the USB audio is digital?). In experimenting with audio played through Android Auto via Black Player, I came across some songs on my phone that would play perfectly!
Looking at the 'good' and 'bad' song files in detail, it became obvious that all of the distorted (bad) songs were 44.1kHz sample rate. Other files with sample rates of 96kHz and 48 kHz played perfectly.
Which now makes me think this is a software issue with my phone. I tested with my wife's Samsung Galaxy S5 and it worked perfectly.

thommo101 said:
I have come across this issue on updating my car radio to one that is Android Auto compatible (Hyundai i30 GD-03 radio). My phone is an Oppo R7sf ColorOS 2.1.0i, Android 5.1.1.
'All' music, voice directions, Google assistant, youtube audio come through with a horrible distortion with the original signal barely audible beneath. The distortion is a short transient produced every 43ms (approx 23Hz).
I initially thought it could be some sort of electrical interference issue (but surely the USB audio is digital?). In experimenting with audio played through Android Auto via Black Player, I came across some songs on my phone that would play perfectly!
Looking at the 'good' and 'bad' song files in detail, it became obvious that all of the distorted (bad) songs were 44.1kHz sample rate. Other files with sample rates of 96kHz and 48 kHz played perfectly.
Which now makes me think this is a software issue with my phone. I tested with my wife's Samsung Galaxy S5 and it worked perfectly.
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Click to collapse
just curious. is this issue present on Official LineageOS 14.1 for the R7S?

celoxocis said:
just curious. is this issue present on Official LineageOS 14.1 for the R7S?
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Click to collapse
Hi celoxocis, I am unsure. My R7S is currently stock (it is my day-today phone). I COULD try and install Lineage, although currently don't want to risk bricking anything (small chance I know). So I'm PROBABLY going to get a new phone at some stage. So then I'd be able to test out LineageOS

Related

Sound Quality Marshmallow

Hi guys,
since the Update to 6.01, I have experienced, that the audio quality of the device (Android Auto, sound over USB) got worse.
I have a soundsystem in my car and I definetely hear the difference....
Somebody knows something that samsung changed something into the software in therms of sound quality?
Perhaps somebody have had a look into the code and see if samsung is doing some compression things or something like that...
slg60 said:
Hi guys,
since the Update to 6.01, I have experienced, that the audio quality of the device (Android Auto, sound over USB) got worse.
I have a soundsystem in my car and I definetely hear the difference....
Somebody knows something that samsung changed something into the software in therms of sound quality?
Perhaps somebody have had a look into the code and see if samsung is doing some compression things or something like that...
Click to expand...
Click to collapse
I didn't like the sound quality in lollipop neither. What i've found is that if you push the phone volume all up it sound even worse, all distorted. Are you using it full volume? Try 75% on the phone and amp up your system gain instead
What I found out is, that I have set the dynamic range compression on in spotify, with turning it off, it sounds way better now....
Connected via usb directly to android auto capable head unit there is no chance to adapt things on the mobile, also no adaption of volume.... seems that sound directly gets bitwise transported to the head unit, so no dac involved etc.... Also adapt sound feature is not working for that.... I only have to be sure that the music gets directly transported to the usb, without compression from the music app etc....

Bluetooth on Nougat 7.0

So, after upgrading to Android 7.0, I am unable to use buttons on my bluetooth headset to play/pause/skip tracks. The music plays fine, but the buttons are not working. Also, when connecting to my car's stereo by bluetooth, it says "phone not connected" even though it IS connected and I can play music just fine here, as well. Apparently this is a known bug in Android 7.0. Anyone else experiencing this? Any sollutions beside waiting for the 7.1.1 upgrade?
I should also note that my phone is not rooted, however, it is no problem doing that if it (for some reason) would help.
Thanks for all feedback!
Waiting is my "solution" too. AOSP is already available in Android version 7.1 ...
I have exact same problem and feel I have searched everywhere for a solution but to no avail. I recommend downgrading to MM until. 7.1 if you can't handle not skipping songs..
no problem here, everything works as it should, playback control, sound and track information ... i connect phone to sony mdr1000x headphones (LDAC codec) and car audio (SBC codec)

Bluetooth audio skips

I'm on 8.1 dp2 in hopes of a fix but it doesn't seem to have helped. My Bluetooth audio skips once every song or two and it's super frustrating while in my car. I've tried disabling WiFi and Bluetooth scanning and adjusting the codec options but nothing seems to work? Anyone else with this issue or a solution? I just received wireless earbuds so I'll test those to make sure it's not my stereo but my s8 had worked fine...
Ok say my new ear buds are Bluetooth 5 and I haven't noticed a single skip yet. My stereo is only 3 so maybe that has something to do with it? As far as I can find however there are no current bt5 stereos so I'm not sure what the issue or solution would be...
Enable the developer options. You can choose between sound quality and connective stability. You can also lower the sampling rate to 44100kHz. In a word, reduce the data transferring rate. I think these might help.
I did all of that and have tried all the options
slyr114 said:
I did all of that and have tried all the options
Click to expand...
Click to collapse
I have had this problem cropping up on various Toyota forums with the root cause being the automotive entertainment systems. It appears that most newer systems are still based on 2008/9 technologies which only have a limited ability to buffer the B/T audio. I'm not suggesting that this is your car but I thought it is worth mentioning.
Ive got a Sony stereo I put in myself haha it's relatively new

HTC U11 Bluetooth Audio Quality Issue on Android 8.0

Hi, last week I installed the OTA Android 8.0 update on my HTC U11.
Since this update the audio quality when streaming to my car's audio system or to my pioneer hi-fi system at home is a lot worse than on Android Nougat. Especially on tracks with a lot of high tunes. There's always a slight 'clink' noise. I don't know how to explain this in English..
Have you noticed this issue as well? Is there something I can do about it? Thanks
question are you using any sound mods?
6th_Hokage said:
question are you using any sound mods?
Click to expand...
Click to collapse
No, I don't use any sound mods.
joscht said:
No, I don't use any sound mods.
Click to expand...
Click to collapse
Same for me. Since this update, the quality of phone call when connected to Bluetooth to my car is really bad. No problem with music stream connected to the same car.
I tried managing the new bluetooth options in developper mode menu but it doesn't solve the problem.
The codec used is all the time SBC even is I change it to AAC or aptX or AptxHD.
Fredz said:
Same for me. Since this update, the quality of phone call when connected to Bluetooth to my car is really bad. No problem with music stream connected to the same car.
I tried managing the new bluetooth options in developper mode menu but it doesn't solve the problem.
The codec used is all the time SBC even is I change it to AAC or aptX or AptxHD.
Click to expand...
Click to collapse
I have the same issue, it seems it was fixed in 42 version for US market(at least for LDAC)
I have 2 issues with Bluetooth connections with the car. The first is that it picks up interference from the noise of the wheels and engine while driving, and the sound quality suffers and it sounds unclear, unless I mute the vehicle.
The second is that it has a lot of trouble connecting to the car at times. Or, more often, it would not connect the media through the car. Don't know what's up with that.
I know how you feel
I've got exact same problem like yours. Although I'm using HTC u11 plus. My new pair of Bluetooth headphones have the same not OK audio quality. You're right especially the high tunes. I'm desperate, trying to reset everything, but doesn't help. If you find the solution, please let me know. Thank you.
joscht said:
Hi, last week I installed the OTA Android 8.0 update on my HTC U11.
Since this update the audio quality when streaming to my car's audio system or to my pioneer hi-fi system at home is a lot worse than on Android Nougat. Especially on tracks with a lot of high tunes. There's always a slight 'clink' noise. I don't know how to explain this in English..
Have you noticed this issue as well? Is there something I can do about it? Thanks
Click to expand...
Click to collapse
Same issue here. I have the U11 as well and just updated to Oreo and I have the same issue as well. Music over BT was ok on Nougat but after the update, music sounds as if there is digital clipping. And it's there with both my headset and car audio system.
Got the same issue, hope they fix it soon. The only solution seems to do a RUU right now.
Btw. I am on a custom rom (LeeDroid), gonna go full stock and try again.
I would suggest looking in developer options and trying some of the different options for bluetooth in there!
Settings > about > software information > more > then tap the build number till it says you are a developer.
Then
Go to developer options and check under networking, there are some settings to toggle in there.
You may find something you are looking for! I personally haven't tried bt since the update so I don't know if it is a common issue. Good luck!
Thank you!
Thank you very much.
Playing around with the bluetooth options in the developer's menu solved this issue.
The audio quality through bluetooth is now pretty much the same as it was with the previous android os
joscht said:
Thank you very much.
Playing around with the bluetooth options in the developer's menu solved this issue.
The audio quality through bluetooth is now pretty much the same as it was with the previous android os
Click to expand...
Click to collapse
Share what settings you stuck with so it may help the other people with the same problem
Hey there!
Same problem for me since updating my U11 to Oreo - very poor bluetooth audio quality...
I tried using different bluetooth settings under the developer options but the thing is: no matter what I choose, it keeps switching back to the default values not affecting anything at all.
If it switch back to default SBC it means your headset/BT device doesn't support other codec.
Alpert3 said:
If it switch back to default SBC it means your headset/BT device doesn't support other codec.
Click to expand...
Click to collapse
That's not necessarily true. On 7.1 both Bluetooth devices which I use can support either AAC, SBC and aptX. My understanding is this issue occured because of the removal of AVRCP 1.3. I think Google added 1.3 back to Android 8.q because of this.
yournamehere484 said:
That's not necessarily true. On 7.1 both Bluetooth devices which I use can support either AAC, SBC and aptX. My understanding is this issue occured because of the removal of AVRCP 1.3. I think Google added 1.3 back to Android 8.q because of this.
Click to expand...
Click to collapse
Yours is not necessarily true either. I'm on 8.0 and I can still use aptX if I want but only if my BT device supports aptX.
Alpert3 said:
Yours is not necessarily true either. I'm on 8.0 and I can still use aptX if I want but only if my BT device supports aptX.
Click to expand...
Click to collapse
I'm not arguing that aptX and other codecs aren't working on 8.0. What I'm saying is that with certain devices, we are no longer seem to be able to use certain codecs that we could use prior. It's obviously device dependent, but to say their isn't a problem and blame it on the Bluetooth device is incorrect. Infact the same problem has occurred on non HTC devices when they've upgraded to 8.0 such as the OnePlus.
yournamehere484 said:
I'm not arguing that aptX and other codecs aren't working on 8.0. What I'm saying is that with certain devices, we are no longer seem to be able to use certain codecs that we could use prior. It's obviously device dependent, but to say their isn't a problem and blame it on the Bluetooth device is incorrect. Infact the same problem has occurred on non HTC devices when they've upgraded to 8.0 such as the OnePlus.
Click to expand...
Click to collapse
Fair enough, I didn't understand.
Does anyone know how to make the bluetooth options under developer options stick? I'm on stock unlocked Oreo, and they go back to defaults as soon as I change them. I've tried changing them whilst connected in the car, but no change. The only thing that could make a difference is that I'm running Pitch Black Substratum theme. Anyone else got them to stick?
In my Audi a3 2015 before oreo i can able to skip the track with entertainment commad and in the display i saw name of the track. After update i have lost all funtionality and the car see my device only like esternal suorce . Can i do something?

No support for higher bitrate on LDAC?

Been using the Pixel 3 as my daily driver for a while now, but just recently came an interesting piece. Apparently, the Pixel 3 doesn't support LDAC at Optimum Audio Quality (more details here - https://themrphone.com/article/google-pixel-3-xl-doesnt-support-ldac-at-optimum-audio-quality/)
I was planning on buying a high-end set of Bluetooth headphones, in fact, was considering the same ones used in the link above. Can anyone else confirm this?
varounmirchi said:
Been using the Pixel 3 as my daily driver for a while now, but just recently came an interesting piece. Apparently, the Pixel 3 doesn't support LDAC at Optimum Audio Quality (more details here - https://themrphone.com/article/google-pixel-3-xl-doesnt-support-ldac-at-optimum-audio-quality/)
I was planning on buying a high-end set of Bluetooth headphones, in fact, was considering the same ones used in the link above. Can anyone else confirm this?
Click to expand...
Click to collapse
Working fine for me with both LDAC (detected and used automatically) and "Optimised For Audio Quality" (switched from default "Best Effort" in Developer Settings)
Pixel 3 (non XL) with Sony MDR-1000X (gen 1 of the headphones in your linked article) and Google Play Music.
Granted GPM isn't a Hi-Res source, but it's playing fine! There was a momentary drop in audio for a split second on changing bit rate but it resumes with no issue!
I had this same issue with my Audeze Mobius--the Pixel 2 allowed me to set the rate to 990, but the Pixel 3 would do as described in the link. Seems like a software bug, I doubt it actually isn't capable of using the full rate
I can't say, I'm much of an audiophile or anything but I do like to play with settings for what sounds best with what I have. On my Galaxy s8 running oreo and my previous s5 running aospx/oreo I could change the developer Bluetooth settings on the fly and notice the difference instantly (avrcp/bt_codec/sample_rate/bit_rate/ldac_codec).
If I do it on the pixel 3, the Bluetooth just falls out, connection wise it stops but still shows it's connected, app wise I can't close and reload the app. I have to turn the Bluetooth off or reset it completely sometimes.
It's kind of a bummer, being a brand new phone and all, I noticed the absolute volume disable didn't seem like a difference either.
I hope they resolve it.
Update: disabling bluetooth a2dp hardware offload let me freely change all those settings while in use with out locking anything up. What that necessarily does or the effect of changing the settings and how well they actually change??? I can't answer with any rational or testworthy explanation as my audio products are oem Bluetooth radios in vehicles.

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