Mediatek 24-bit audio - Xiaomi Redmi Note 4 Questions & Answers

Some of websites refer Nikel to have hi-res audio, but when I check it out with Poweramp, there is no option of using hi-res output. Is there really hi-res audio output for Nikel?

lasbrujazz said:
Some of websites refer Nikel to have hi-res audio, but when I check it out with Poweramp, there is no option of using hi-res output. Is there really hi-res audio output for Nikel?
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I'm not sure about the exact bit rate but i use the 'Mi sound enhancer' under sound settings and over headphones the sound quality is great. It's actually better than my previous phone Galaxy S7 which was the weakest area of that phone.
Sent from my Redmi Note 4 using Tapatalk

You must use alpha build 703 to have 24 bit audio output with AOSP rom (stock MIUI rom doesn't support it).

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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?
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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?
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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

Equalizer with the dac

Is anyone aware of an equalizer that works well with the dac? Every equalizer I've tried, you have to turn it on and off and then on again everytime you switch songs, it happens in all players. Spotify doesnt even have an equalizer anymore, even though my galaxy s6 did. I love that it has a dac, but I hate that I can't customize the equalizer, the 5 options they provide are really lackluster. I've got dt770s and they can handle a strong bass boost, but don't provide much bass on their own. So I need an equalizer to get them to sound the way I want to. The basic bass option they have in the dac options only boosts bass and drops treble, which lowers the audio fidelity of most music I listen to. I can't for the life of me understand why they would provide a high grade dac and not give you the option of customizing the equalizer, someone whos gonna use the dac is obviously going to want the most options possible.
I would highly recommend viper4 Android! I have used it for about a year and it has lots of options and a great eq! To me the most powerful Android eq/processor around.
banshee28 said:
I would highly recommend viper4 Android! I have used it for about a year and it has lots of options and a great eq! To me the most powerful Android eq/processor around.
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There are many (viper4android) on the Play Store, which one do you recommend? Have you used it with the DAC on the V30? Thanks
Viper4android requires root. Even if you can get it on the play store it won't work. As far as I know anyways. If it did not require root I am sure everyone and their mother would be using it.
That's right, well that's why I like root and not have to worry about which apps I am allowed to install, lol. I hear ya, it's a great app. I may hold out for the unlocked one just for this app!
When you run your audio through an equalizer it is no longer bit-perfect. Most people who care about the kind and quality of DAC used would not want to decimate the audio. You are better off choosing a heaphone/iem/speaker that "colors" your audio to your liking.
I use this: https://play.google.com/store/apps/details?id=eu.pinpong.equalizer
It sounds great....when it works. It's temperamental to say the least, but using the same pair of earbuds (both wired and wireless), when using it, it sounds better than my Pixel 2 XL with Viper installed.
mlknez said:
When you run your audio through an equalizer it is no longer bit-perfect. Most people who care about the kind and quality of DAC used would not want to decimate the audio. You are better off choosing a heaphone/iem/speaker that "colors" your audio to your liking.
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Stock dacs in phones cant power higher ohm impedence headphones. Changing equalizer settings just enhances certain frequencies while lowering others, its still going to sound better with higher grade headphones/amps. Not to mention high grade headphones are capable of outputting better bass or treble without buckling. Dacs arent only used to reproduce sound at its originally intended quality. For example, if i run the same equalizer settings with a g430 gaming headset, a lot of the sound is hidden behind the bass, but with my dt770s and a proper dac I can still hear the otherwise lost sound while still getting a good bass kick. I'm able to achieve it on my pc with my external dac/amp, I'm trying to do the same on my phone.
Frosternal said:
Is anyone aware of an equalizer that works well with the dac? Every equalizer I've tried, you have to turn it on and off and then on again everytime you switch songs, it happens in all players. Spotify doesnt even have an equalizer anymore, even though my galaxy s6 did. I love that it has a dac, but I hate that I can't customize the equalizer, the 5 options they provide are really lackluster. I've got dt770s and they can handle a strong bass boost, but don't provide much bass on their own. So I need an equalizer to get them to sound the way I want to. The basic bass option they have in the dac options only boosts bass and drops treble, which lowers the audio fidelity of most music I listen to. I can't for the life of me understand why they would provide a high grade dac and not give you the option of customizing the equalizer, someone whos gonna use the dac is obviously going to want the most options possible.
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Did you ever make any progress on this? I'm the same boat - tried a LOT of EQs with the same results - no change if it's via the DAC or bluetooth. I have a set of Sennheiser PXC550s which have their own app with an EQ, but that's only for locally stored music and doesn't apply to Spotify, Amazon Music, etc. Sound is still good, but I'd love to make some subtle adjustments and am very frustrated that I can't.
are there any possibilities to adjust the DAC even better over other apps? because the prefabricated settings of LG do not agree with me
I use Equalizer FX. Pro. It's built in EQs work pretty well with my Sony MDR-7550s, but I do wish it had more than 5 bands so that I could tune them a little better.
Quad DAC is all well and good, but surely it should have a built-in DSP. Currently I have OPPO Find 7 with the incredible Maxxaudio (system DSP, not third-party). I was looking at V30, with its audiophile credentials (and to LGs credit they're not behaving like sheep and following Apple - no headphone jack - idiocy), but without a superior system DSP the audio will sound inferior. Rather defeats the purpose, because not many folk listen to music without an EQ.
JetAudio with AM3D plugin works great with the V30S ESS DAC.
The AM3D is not exactly an equalizer, but similar tailoring idea, with something else sorta like spatial clarification. It makes the sound more clear if adjusted right, along with adjustment of bass and treble ranges.
...
The best equalizer specifically developer for Spotify is SpotiQ. You can create a specific EQ for each song or album, awesome.
RonnieJamesDio said:
The best equalizer specifically developer for Spotify is SpotiQ. You can create a specific EQ for each song or album, awesome.
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You dug up an old thread from 2018.
You can add LG's equalizer. These developments below are from 2019:
How-To add LG's Equalizer to your Hifi Quad Dac Sound Section
https://forum.xda-developers.com/lg-v30/how-to/how-to-add-lgs-equalizer-to-hifi-quad-t3905870
Fully enable DTS 3D stereo (root needed)
https://forum.xda-developers.com/lg-v30/how-to/enable-dts-3d-stereo-lg-v30-variants-t3887139
Posts like this seem a bit spammy to me. Can you elaborate on your experience with that SpotiQ equalizer and how you found it?
An equalizer that works in the digital domain of the already compressed Spotify audio stream generally cannot yield very good sound quality.

Samsung UHQ bluetooth auido codec bandwidth (Level U pro ANC)

Hi
Samsung's own UHQ BT audio codec, such as APTx HD or LDAC, has a link bandwidth of 24/96 (512 kbps), but when I connected my Level u pro to my S7 (Exynos) (I also tried on s8+) and check it from the developer's menu, it connect with scalable audio codec 16/44. (256 kbps). And I can not change it. In this case 24/96 flac HQ music quality is reduced to cd quality. Can someone who knows explain? Is UHQ codec a lie?
Thanks.
Works fine on TGP rom.. No issue, but every restart setting again
Attakan said:
Hi
Samsung's own UHQ BT audio codec, such as APTx HD or LDAC, has a link bandwidth of 24/96 (512 kbps), but when I connected my Level u pro to my S7 (Exynos) (I also tried on s8+) and check it from the developer's menu, it connect with scalable audio codec 16/44. (256 kbps). And I can not change it. In this case 24/96 flac HQ music quality is reduced to cd quality. Can someone who knows explain? Is UHQ codec a lie?
Thanks.
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you need to activate this UHQ function on Samsung level application, download on play store
davenasc said:
you need to activate this UHQ function on Samsung level application, download on play
its already active, I also notice when i switch on/off uhq function, uhq upscaler is on/off too. I thing that is not about bandwidth. I tried every combination but still 16/44
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Stereo recording

Anyone tried to record sound in stereo with Galaxy A6+ ? On my previous Android, Note 4, I used to use Hi-Q to record sounds of nature (birds) and other life sounds. Always in stereo 44kh.
But now, even though Hi-Q says I'm recording in stereo, the recorded sound is mono. I've tried all options, and many recording apps, and the result is always monophonic recording. The sound quality is very good, no doubt about it, but it's not stereo.
I know it needs 2 mics to have stereo recording, but as far as I know, Galaxy phones like A6+ has them. So something 's not clear here.
Any help appreciated.
Sent from my SM-A605FN using Tapatalk

Question Terrible sound quality with bluetooth codecs other than SBC or LDAC

has anyone else noticed that bluetooth quality is terrible when the phone uses a bluetooth codec other than SBC or LDAC? I've witnessed it with my Grado headphones as they only have SBC or aptX HD and the phone picks aptX HD as it would be the higher quality codec but sounds bad for moments and then it's like you go from mono to stereo in that sound quality improves for a few seconds and then goes to trash again. This also happens with AAC on a friend's car. Forcing the phone to SBC in developer settings makes it sound good, but it is cumbersome to always have to go to dev settings to change from the codec it picked to SBC, few devices have LDAC, and anyways why ship the other codecs if you'll have them broken
I tried sbc on my wf xm4 and all sound good
Mrxyzl said:
I tried sbc on my wf xm4 and all sound good
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The point is that SBC sounds good and so does LDAC but the rest sound like ****.
I tried AAC with my galaxy buds pro and the high frequencies get a little distorted, as if it had a lower volume
AAC on Google Home (to which it defaults as it only supports SBC and AAC) also exhibits this issue.
If you are on android 13 64.1.A.0.891 than flash it back to 64.0.A.11.31. I had the same issues my headsec was popping and crackling my car unit (sony MEX unit ) was losing connection noisy and stattering playback

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