Volume decreased when screen is on - Xiaomi Mi A2 / 6X Questions & Answers

So i bought this Hi Res DAC Type C to Jack 3.5mm AUX Audio Adaptor HiFi Sound Quality from e-commerce, the reviews are all good and the quality is good too.
But the main problem is that every time my screen is on, the volume all of the sudden dropped. I don't know whether the volume dropped when screen is on or the volume increased when screen off.
I'm using PixelExperience Android 10, Rooted with magisk, and Viper4Android installed but i believe it has nothing to do with it since i've tried to disabled it yet the problem is still there.

Related

[Q] Good audio quality in dock?

I have a google car dock for my nexus one and I hook the audio through the car stereo with a 3.5mm audio cable. When it is plugged into the dock the sound is very low and the quality is terrible. If I just pull it out of the dock everything is back to normal -- this happens with all apps.
What do I have to do in order to prevent the phone from doing this while docked?
you have the exact same setup as i do and ive seen this as well, i think there is something that makes the audio play at a different volume specifically for when it is docked for some reason. im on cm6.1.1 and it seems a little better because i believe they tweaked something with it, i saw a checkin on cmsrc on twitter that modified some line with dock volume.
what ive found is if i set the media volume to about 5/8 or 7/8 then dock it the volume will make its "dock adjustment" and its up to where my car volume is from there, usually a little less distortion if the phones volume is a little lower than max. from there if i forget to set the media volume i will use the preamp slider in the poweramp music players equalizer to adjust.
i just wish the volume wouldnt change at all and the volume button on the side of the dock would change the media volume :\
side note: have you noticed that the voice search when docked doesnt pick up your voice very well? almost like the noise canceling mic is cancelling you out or something and other times it can pick up your voice great?
Actually the sound volume was solved by some user that re-compiled libaudio with the code that lowers the sound by 10db commented out. The problem I have is that the sound quality is so poor that it seems to be mono without bass.
It turns out that the crappy audio quality comes from Bluetooth being on. When I disable Bluetooth in car mode, everything is great. Unfortunately I can't figure how to make it disabled by default so I have to disable it everytime.
Sent from my Nexus One using XDA App

Bluetooth aptX with external speaker

Hi,
When pairing up with a Loewe Speaker2Go Bluetooth speaker using aptX my Sony Z3 compact defaults to max volume and the volume control is not configurable from the phone (I am aware this is a KitKat "feature"). The main problem is that this only allows a small scale on the speaker between no sound and very loud sound (3-4 volume presses). Has anyone experienced this kind of problem with other speakers and is there a solution? Thanks,
rimutituki said:
Hi,
When pairing up with a Loewe Speaker2Go Bluetooth speaker using aptX my Sony Z3 compact defaults to max volume and the volume control is not configurable from the phone (I am aware this is a KitKat "feature"). The main problem is that this only allows a small scale on the speaker between no sound and very loud sound (3-4 volume presses). Has anyone experienced this kind of problem with other speakers and is there a solution? Thanks,
Click to expand...
Click to collapse
I paired a Bluetooth Stereo Headset, LG HBS-800, has aptX. When they are connected, I can press the volume rocker on the Z3C and it'll pop up a Bluetooth Volume. My headset has its volume control and works independently.
Yeah, same on my Sony Bluetooth Headphones. Volume control via volume rockers both on phone and headphones (independantly).
My SuperTooth Disco 4 Wireless Portable Bluetooth and NFC Speaker when connected, I get a Bluetooth Volume slider. Apparently it uses the aptX protocol too.
No issue here with the Definitive Technology Cube. NFC, Throw, AptX, and Bluetooth all works together in harmony.
It's a bit of a shame for the OP as that item is pretty expensive that it does that, when much cheaper speakers don't. Odd.
It is a shame as the speaker is very good and worked perfectly with earlier versions of android. Based on the compatibility list it has not been tested with 4.4+ though... Based on the previous replies I guess it is not a sony problem as other Bluetooth aptx devices can still be controlled from the phone. For the devices this works with is the volume in sync on the phone and speaker?
My speaker is controlled entirely by the phone, it has no volume controls itself.
Ok, this seems to be an issue with the Loewe speaker and not the Z3C. I've just been to an hi fi store and tried pairing the phone with a number of Bluetooth aptX speakers, including AudioPro T9, AudioPro T10, Marshall Stanmore and the Sony SRS-X9 and with all these devices I could control the volume from the phone as well. Will check one more thing on the Loewe when I get back home - it had phone and media pairing on (not just media like the other speakers) so maybe this is the problem. If not, looks like the firmware on the Loewe does not support Android 4.4+.
I am having a similar issue but it presents itself when going above the 4th notch on the Bluetooth volume on my XZ3C. Volume goes from 0% to %15 to 30% to 80% to 60% and 70%. When my computer connects to the same bluetooth audio dongle it has a smooth range. I suspect it is a problem with the XZ3C protocols that interfere with certain bluetooth devices and not a hardware problem.
I have the same issue with my JBL speaker. I can't change the volume on the speaker without the Bluetooth volume on the phone rising or reducing. It seems that there isn't any independent control using my z3 compact but if I pair it with my LG g2, it works independently.
Same here with the Jensen Scandinavia Buddy. My Z3C cannot control the volume but my Galaxy S2 running Cyanogenmod at 4.4.4 can.
Still an issue after upgrading to Lollipop.
the good, the bad and the funny
Xperia Z3 Compact, Android 5.0.2
I connect my phone to a Philips BTB 7150 home audio system.
- the phone does not change the volume of the audio system upon connect (good)
- i cannot control the volume of the audio system through the phone's volume rocker (bad)
- when i change the volume directly on my audio system whilst connected with my phone, the phone shows the Bluetooth Volume popup and the slider moves in sync (funny)
So there seems to be some kind of control connection, but only one way.
On the other hand: no problems with iOS devices here. When connected to an iPhone the phone controls the system's volume and system volume changes are reflected on the phone's volume setting.
wenigtelefonierer said:
Xperia Z3 Compact, Android 5.0.2
I connect my phone to a Philips BTB 7150 home audio system.
- the phone does not change the volume of the audio system upon connect (good)
- i cannot control the volume of the audio system through the phone's volume rocker (bad)
- when i change the volume directly on my audio system whilst connected with my phone, the phone shows the Bluetooth Volume popup and the slider moves in sync (funny)
So there seems to be some kind of control connection, but only one way.
On the other hand: no problems with iOS devices here. When connected to an iPhone the phone controls the system's volume and system volume changes are reflected on the phone's volume setting.
Click to expand...
Click to collapse
Xperia Z3 Compact D5803, Android 5.0.2 (Nordic stock ROM, no hacks)
Home hi-fi system with Philips BT adaptor: phone can control the BT audio volume output (as expected)
Home mini hi-fi system: phone can control the BT audio volume output (as expected)
Car BT audio system: phone can control the BT audio volume output (as expected)
JBL Charge BT speaker: phone cannot control the BT audio volume output (oops) ; I need to use the speaker's volume control
So, quite a few gadgets work well, but in fact my JBL speaker suffers from the same problem, which I never realised before.
Is it a speaker BT standards problem ?
Or is there something in the phone's BT implementation that needs refining ?
Same Problem here
I have the following problem:
I use the Z3 compact with a Sony BM-10 BT audio receiver. When a make a call with my BT headset which is not set to maximum volume the volume of the music is set to maximum from time to time afterwards. Also the volume slider shows the BT symbol or loudspeaker or the throw symbol randomly. I tried many things to solve this as pairing the BT devices again. Anyone any idea?

Automatic volume down issue when headset connected

Hello all,
I have seen this bug in many motorola phones. Pls find bug explanation below.
Everytime when i connect headset in 3.5mm jack, audio volume and ringtone volume goes down automatically and even goes to DND mode.
I found temporary fix by playing some audio while connect headset jack, which avoids this issue.
Anyone knows permanent fix, please reply.
It happens only when I connect headset of samsung with other head set it works great
So I thik it is just compatibility problem
I was also having problems with a Sony headphones. What I did was to remap the volume down button for headphone.
I think it's not a bug but feature. The phone maintains the status of volume level differently for the case when headphone is inserted and when the headphone is not inserted.
I don't have evidence for this, though but as much as I've observed, that's how it works.
The issue is due to the difference in architecture of 3.5mm headphone pin the inner architecture of the Moto phone is built according to it's headsets.
When you connect other headset eg. Boat it hits the inner plate which is responsible to lower down the volume as in some headsets there is option to decrease and increase the volume.
Power button will also not work by the time as the phone senses that lower volume rocker is being pressed simultaneously.
Solution : Screen off your phone plug in the headphones screen on and use it.

Very low audio output via the 3.5mm headphone jack.

Even though this phone has a 3.5 mm headphone jack, the audio output via the jack is terrible.
I have tested 3-4 different earphones as well as gaming headphones but still I'm disappointed.
Even on the loudest volume, the audio seems a bit on the low side.
Any solution for this ? or any workaround ?
Have you tried to push the hj all the way in?
Sent from my Nokia 7 plus using Tapatalk
Yes. Earphone fits perfectly in the jack. I said that the volume is low because I compared it with my cheap old phones. And the hj audio o/p was way better than nokia 7 plus.
It might be high volume warning. You don't see this popup if your screen is off and volume stays at the same low level. https://www.xda-developers.com/how-to-automatically-disable-the-high-volume-warning-without-root/

Question How to remove this volume feature?

I recently got this smartphone, and one of the very first things that I noticed is that volume thru headphones is very low, this affects the 3.5mm jack, USB-C audio and even bluetooth. It is in fact much lower than on the previous Redmi 9 which I compared with.
Doing some measurements (by playing a tone and measuring with a multimeter) I found that if I plug a male to male 3.5mm jack to the headphone, it will play audio thru, however none of the settings for headphone will be enabled (meaning that the phone doesn't think that I'm using headphones) if I then connect headphones using an adapter it will play at full volume no problem.
The 3.5mm2 jack puts out 0.8Vrms when there is no headphone, and 0.25 Vrms when it detects headphones. (way too low for many headphones).
This means that the phone has a feature that lowers its max volume by 10 dB when using headphones, that is why it also affects bluetooth audio.
For those that want to test it, if you plug a 3.5mm2 extension cord to the headphone jack, and then you plug headphones you will find out that the max volume is much much louder.
Hopefully there is a way that I can remove that feature all together.
I already tried changing the region, disable absolute volume, etc. None of that worked.
Follow up:
I found that what causes the problem is the equalizer effect that Xiaomi added to the phone.
Every time that the smartphone detects headphones it enables the equalizer, the equalizer has a range of +10dB and -10dB.
They implemented the EQ in such terrible way that +10 dB is actually -10 dBFS and -10 dB is -20 dBFS.
So if I increase the volume at say 100 Hz, it is now able to output 0.8 Vrms at 100 Hz. However if I increase the volume in all bands the EQ does nothing and it stays at -10 dBFS. meaning the issue is still present.
There is no option to disable the EQ, it is just flat by default but they didn't add an option to turn it off.
Edit: I tried disabling com.miui.audioeffect thru ADB and while it was disabled, the volume is still low.
No idea if there is another APK that I could try.

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