Broken HiRes - Xiaomi Poco F1 Questions & Answers

Hi. I tried a lot of Android 12 ROMs and all of them has bug with HiRes codec. Sound is shifted to the right, bass reduces volume (I used Poweramp and Neutron, everywhere same problem and on all frequencies). For now the highest frequency on AAudio (24/192). Any ideas how to fix that?

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Headphone Volume goes from Loud to Louder...

I'm on MIUI, and just recently started using my phone has a music player with my headphones. The minimum volume on the phone is pretty damn loud, and most of the time I can't listen to it that loud. When I put the volume up it gets louder. I've tired just about every DSPManager setting I could find, nothing gets the volume any lower.
Is this just an issue with non-stock based roms? I know that the max volume issue is a non-stock issue (where the volume gets maxed at about 50% of the volume indicator).
It is a known issue for miui (I believe all miui) or cwm. I mpved out of miui because of that although I love it otherwise. Galnet miui also has the same issue.
Sent from my SAMSUNG-SGH-I777 using XDA App
Try out poweramp and its preamp gain setting on its built in equalizer.
penguinlogik said:
Try out poweramp and its preamp gain setting on its built in equalizer.
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Click to collapse
I just downloaded "equalizer" whats difference between poweramp?
I'm definitely looking for "better sound quality" and "loud + clear"
because I was experiencing volume Loss (auto dimm, yet volume still at max?) during calls (or just low volume), sometimes audio just seems Low during music playback vs my friends phone?? why a difference.
Edgarhighman said:
I just downloaded "equalizer" whats difference between poweramp?
I'm definitely looking for "better sound quality" and "loud + clear"
because I was experiencing volume Loss (auto dimm, yet volume still at max?) during calls (or just low volume), sometimes audio just seems Low during music playback vs my friends phone?? why a difference.
Click to expand...
Click to collapse
Your problem is different than the OP's and would normally deserve another thread...
Anyways, poweramp is just for music playback, and if you don't know how to use an equalizer properly, I would recommend not touching it or you would make it sound more like crap. The difference is how much power the audio jack can put out and the impedance of your headphones, and that determines how loud it sounds on your end. All phones are not the same, however, you should search for the in call audio fix thread for a solution to your problem.

Beats Audio

Hi, I can`t say that I`m a fan of beats audio but without it, the phone lacks a bit of bass impact, this is compared to an siii, ipod touch 3g and ipad 2, the volume is also very low without beats with the 4th notch equal to the first on the siii but that is fine since I like listening to my music softly. However whenever I enable beats audio there is a distinct increase in background noise that doesn`t really affect rock music but does classical and such. This is especially annoying in the gallery app where you cannot turn off enhancers but rather choose between htc enhancer and beats with the htc enhancer increasing bass to the point that everything sounds boomy and echoes. Does everyone have this issue with beats and if so how do we fix this?
TURN BEATS OFF ALWAYS.
Beats Audio is just essentially an EQ setting that is being hyped for marketing. To get the best sound, you need to do equalization based on your listening device, ideally at the amplifier, not the source. For example, audio will sound a lot different in your car than in your living room. So you want the source (the phone) to output a flat, unchanged signal, then adjust the EQ (or tone controls) on your car stereo or home receiver to make it sound best.
Now I'm guess you are probably talking about listening to music on headphones which is a different story, since the headphones don't have an EQ. In that case, just use a music player app (like PowerAmp) that allows you to adjust the EQ in the playback software. You could actually save different profiles: headphones, car, living room to switch between them. Problem with that is, then say you are watching a movie in your living room instead of playing music on your phone, then the movie may not sound optimal. That's why it's best to have the source material unchanged and do the equalization at as close to the amplification device as possible.
The only value of Beats is as a fashion statement for today's young people.
ryanjsoo said:
Hi, I can`t say that I`m a fan of beats audio but without it, the phone lacks a bit of bass impact, this is compared to an siii, ipod touch 3g and ipad 2, the volume is also very low without beats with the 4th notch equal to the first on the siii but that is fine since I like listening to my music softly. However whenever I enable beats audio there is a distinct increase in background noise that doesn`t really affect rock music but does classical and such. This is especially annoying in the gallery app where you cannot turn off enhancers but rather choose between htc enhancer and beats with the htc enhancer increasing bass to the point that everything sounds boomy and echoes. Does everyone have this issue with beats and if so how do we fix this?
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Click to collapse

Sound quality/equalizer

Hey all, just been playing with the equalizer settings with various apps (mostly Spotify and the in-built Samsung music player) and can't see that the 14khz setting are modifying the sound at all ? And fiddling with the 60Hz option just makes the sound thinner if anything. This occurs with all the wired headphones I try.
My Nexus 4 doesn't have this problem - 14kHz increases high treble, 60Hz add bass as you'd expect.
Anyone else have this ? Is this common to all Mega's, a problem with just mine ?
Bass boost not working
I also have this problem on the Mega. I can't get Bass Boost or Equalizer working in Pandora. I have tried a number of Bass Boost programs that work on other phones but don't seem to work on the Mega. Any ideas anyone?

Dolby Atmos in Nougat

Currently I am on 7.0 Nougat but it was available on 6.x.x too. When sound through speakers is at very low volume, i.e. first or second setting and with Dolby Atmos on (on most players or apps supporting it), I can hear this hissing sound especially on speech (movies) or let's say at the start of a song when there is a single sound only rather than a background/mixture of it. It is bound to the sound playing and is not just permanent noise coming from the speakers or headphones.
Before 7.0 I heard this "hissing" via the speakers only, now it's to be heard also via headphones so I believe it to be software related rather than hardware. When Dolby Atmos is off, the hissing/clicking-like sometimes noise is gone. Probably it still exists but is barely audible at all.
Anyone else having similar observations? I'm not a DTS/surround sound specialist but wonder if the issue relates to how different channels/frequencies are set to work coming from the phone's (two only) stereo speakers/headphones or has something to do with the included amplifiers. I mostly use the custom DA profiles where sliders are above 50%. If pretty down or with some of the extra settings off (normalizer etc), the effect is less audible but still exists. Once I get the volume up via the phone's hardware buttons, "hissing" kind of disappears but this is more to do with the mixture of sounds where speech/isolated single sounds are no longer audible alone.
For the above reason I've been avoiding having Dolby Atmos on in almost any movie, Kodi or even games, still I love it for the way it changes the entire spacial environment, so if I knew what's causing it I'd gladly go for a fix. My Axon is A2017G.

List of music players outputting to akm dac

Hello,
An update of the music player i am using (AIMP for android, free) just release an update (v 2.60) with the ability to choose between opensl and audiotrack for the sound engine. In audiotrack, i'm pretty sure it is driving the akm dac 4490 inside my axon 7 (mine 2017G B06) : when i switch between super and normal in audio settings there's a blank and i hear clearly the difference.
I ve search for other players that can drive the axon 7 dac and i found :
- stock player
- neutron
- google play music
is it right ?
Have a good day.
nevro
Hi, neutron player false positive I think.
Switching super HiFi and changing sound in player does not mean that it fully utilitize akm DAC. You will get better Sound on YouTube on any stream.
I will check aimp new features, thank you for the tip.
Try n7 player is my suggestion.
Use this if your bootloader is unlocked and the whole system can use the AKM DAC. Works on system or Magisk. https://forum.xda-developers.com/apps/magisk/module-universal-deepbuffer-remover-t3577067/page11
Sent from my ZTE Axon 7 using XDA Labs
Infy_AsiX said:
Use this if your bootloader is unlocked and the whole system can use the AKM DAC. Works on system or Magisk. https://forum.xda-developers.com/apps/magisk/module-universal-deepbuffer-remover-t3577067/page11
Sent from my ZTE Axon 7 using XDA Labs
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Excuse me, but can you explain why this enables the akm dac on any music player?
I don't quite understand.
Can you post a screenshot showing it works with your preferred player for example?
nfsmw_gr said:
Excuse me, but can you explain why this enables the akm dac on any music player?
I don't quite understand.
Can you post a screenshot showing it works with your preferred player for example?
Click to expand...
Click to collapse
I've been using it on custom ROMs and my assumption is that it basically wires everything to the AKM DAC. That's because a) even in Youtube, Netflix and games the sound was clearly from the AKM DAC, and b) I'm on stock, was using Youtube without the patch and eventually felt so let down by the crappy shoebox sound that I downloaded it and flashed it.
Try it for yourself: download the flashable zip, put some music on YouTube (on stock it can't use the AKM DAC even by toggling the switch, that's why you should use youtube), then flash the zip and try again after it boots. There's no way around it, it's not placebo. It might sound worse for you if you have different cans or you want a different sound though
nfsmw_gr said:
Excuse me, but can you explain why this enables the akm dac on any music player?
I don't quite understand.
Can you post a screenshot showing it works with your preferred player for example?
Click to expand...
Click to collapse
It allows the system sound effects like equaliser to affect all audio like how it was in KitKat. It's an option in ARISE and maybe default in Ainur (I forget, needs testing). This is just the function alone, it works well with the mod author's other audio FX installs.
I love Viper for tuning headphones for their individual Frequency Response with it's excellent graphic equaliser in V4A 2.3.4.0. Lowering output gain with it's advanced options seems to help lower Google Play Music so I can hear my game sounds higher, need to test this more to confirm. I find combining it's Speaker Optimisation with Dolby's surround with flat EQ produces the best speaker audio. Having tried most audio mods and effects on my old Z3C, keeping things simple with just these produces the best results. I'm yet to test a couple of mods that were incompatible with the Z3C and retest others on the Ax7. But as an audio purist and from experience, I don't believe any audio effects will improve audio rather than just modify the sound, unless they prove to retune the chip processing at a low level.
As Username suggested, have something like YouTube playing in the background and toggle the Hi-Fi to confirm a difference. It can be uninstalled by reflashing for system-based, or respectively via Magisk Manager, but TWRP backup in case. Audio isn't really something you can screenshot haha, it has to be on your device locally to be heard. This mod should be common knowledge by now for getting the most and expected out of an audio beast such as the Axon7 on stock.
Sent from my Xperia Z3C using XDA Labs
Thanks guys.
And what about PowerAmp on a stock rom?
Still seems troublesome on 704 alpha. Mine seemed ok but then started getting a fail error for hi res.
I just use Jet Audio as my default player with 32 bit enabled and AM3D plugin used. Sounds great.
By the way I discovered a conflict scenario when using the deep_buffer remover to allow the AKM DAC globally.
Whenever a non equaliser effect supported app (not GPlay Music or Neutron) plays any audio simultaneously over the top of another app's audio playing. The hi-fi toggle will no longer switch until audio is paused. This isn't typically a problem as Super mode is preferred and will continue to function when on headphones.
However it means if an audio track is playing on speakers and any non EQ supported app plays any audio causing the conflict, then plugging in headphones they'll be stuck on the Snapdragon DAC. The reason being that speakers use the Snapd DAC and plugging in without audio stopped continues the locked conflict where hi-fi won't switch to the set preference.
A simple workaround is to just pause/stop all audio and the hi-fi preference precedence will automatically function on resume. This can be done before or after plugging, it doesn't matter. To confirm this the hi-fi switch will then function immediately when changed.
This took me several reboots and testing various audio to pin the cause. The easiest way to tell the difference between the DACs is to turn up volume to a level that feels comfortably loud on Super, then whenever the SnapD DAC is in use instead the volume is noticeably not loud.
I haven't tested if a notification or ringer sound will cause the same conflict issue. Safer to just pause/stop all audio when starting headphone use in case of any previous audio having already caused the conflict.
Sent from my ZTE Axon 7 using XDA Labs

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