speaker volume enhancement - Xiaomi Mi Mix 2S Questions & Answers

Hi all together,
Many users have surely noticed, that the MiMix2S could have more max. volume on the speaker(s) compared to many other phones in this class.
I've heard of an app (with or without rooting), that could be capable of it.
My unique question:
Is it possible to enhance the normal given max. volume level with a software intervention / override to enhance the normal set "hardware level" of the speaker(s)? Perhaps the normal set level is set too low for avoiding hardware damage with a too great safety margin?
Is 'viper4android' or a similar solution is capable of this?
If yes, how could it be realized / installed / (rooted?) ?

Related

[Q] What is going on with ICS media volume steps?

I'm on Kangy8 and I don't know if this issue is related to all ICS roms.
So when I adjust the media volume while listening to music I basically get this more or less:
- |..|..|..|..|..|..|......|.........| +
where some of the steps seem to be mapped to more than one volume level.
What the ... I don't even get it.
I want something like this:
- |..|..|..|..|..|..|..|..|..|..|..| +
I also don't understand the Voodoo Control Plus audio settings.
Current amplifier is a negative number. Why? So what I understand is, that it's amplifying the current volume?
I saw that CodenameAndroid comes with a 30 step volume addon but as far as I know this will conflict with voodoo sound.
I don't have that volume issue in the stock ROM on my i9023, possibly a kangy bug.
The amplifier level is simple and useful once you understand it. I'll give you some background first and some general numbers.
dB (decibel) is a unit, in an audio sense, which measures the pressure of sound waves. It is a logarithmic scale and requires a reference level to compare to. Basics with audio decibel values:
1dB : Threshold of noticing a volume change
3dB : A little louder
6dB : Double the sound pressure
10dB : We perceive sound approximately twice as loud
Now that's out of the way; the analog control tells the amplifier inside the phone how much it should amplify the sound. Using 0dB as a reference, which is generally the loudest it goes safely, how much less (in dB) would you like it to amplify. If you want it to halve the perceived volume, you'll drop it down to -10dB (effectively half as loud as full blast). The reason why you would want to do this is generally if there is excessive noise generated by the amp, lowering the amplifying power and raising the software volume will give you the same volume and power, but lower additional noise as the amp is working below it's limit. Higher quality DACs of course can reach their max amp capabilities and add no noticeable noise to the earphones/speakers, of course.
Hope that made sense

Music Listening Experience

Hey, greetings from Slovakia
I'm curious, are there ways to improve sound music experience in a Windows Phone (Lumia 710), software-wise?
The phoney comes with NO sound enhancement options so it's clear that any such attempts'll be purely software-based.
I'm interested in these two, in particular:
1) Equlizer software, working with Music and Videoss app, if not globally
2) Total number of REAL volume levels (the phone should have 30, but has about 8.
Now I'm aware any of these'd be possible with a custom ROM only so that's why I'm asking first, as I suppose learning to flash that thing is going to take me couple of hours (newbie).
Thanks for everyone's reply
If you'd gone with an HTC phone, you might have been able to use the Sound Enhancer app (which worked fine pre-Mango, although it seems to have been taken off the Marketplace since). That provided the equalizer, at least...
I don't really know what to say to your complaint about the "REAL" volume levels; I can hear a distinct change in volume at each step. I do feel that the minimum should be lower (I occasionally mute the phone by accident, tapping down once when it's already at 1) and I think that actually might be configurable in the registry (I haven't looked *very* hard yet) so that might be possible with a custom ROM. I know you can adjust the number of steps in the volume control in the registry, too.
My only real gripe with the way WP7 handles sound is how freaking loud minimum volume is. Maybe this is just a hardware level issue, but I do somewhat agree with you; in that the phone doesnt seem to have a lot of range, in regards to volume control. However, I feel the 30 step software volume dial is audibly different between every step.
I was referring to this issue (posted by me): http://discussions.nokia.com/t5/Har...trol-only-8-levels-instead-of-30/td-p/1504138
Hope it's allowed to post links to other forums. It's Nokia's official, not a community. Best part is no one from Nokia gives a flying phuk, the question is unanswered for 3 months.

Audio latency solution proposal

Hi there,
Google, please, would it be possible to solve Android audio latency problem in new Pixels by including a special "Audio mode" as a new app standard in future android versions? e.g. similar what Samsung has for battery saving so that everything switches off, the phone is totally unusable but saves battery. Audio mode would be something similar. Every service not necessary for the task would shut down, just the kernel and drivers would work, scheduler and CPU would be dedicated to single audio app that would only interact with few necessary components (Audio DAC, WIFI, USB..). This mode could also be enabled through restart I don't mind - I think musicians would appreciate it in the end knowing the phone is not just the "phone" for a while but a piece of hardware dedicated to audio. I'm curious how low the latency could go in this special case. 4ms max would be great. I would be happy if you comment this or forward it somehow to Google engineers if you know some I think it is a good idea and it could potentially be a significant advantage over iPhones...

HTC U11 Android 8.0.0 volume steps problems

Hello to everyone
I've recently become an owner of a brand new HTC U11, mostly for it's playback capabilities. I even got new earbuds JBL reflect aware, but I'm still struggling with major, very known issue, lack of sufficient volume steps. I was trying to achieve this with some of the applications, but all the solutions were unsatisfying or were even worse, distorting the output sound. Finally I got myself to this forum and I've found, that there are ways to achieve this by adding a proper entry into the build.prop file.
I tried this, but final result also turned out to be unsatisfying. Why is that? Because when I add entry to build.prop, after reboot of the device, the amount of volume steps increases but something strange happens. Let's say I set it to be 30 steps. What it actually turns out is, that starting with a zero volume level, when I increase volume it reaches the highest possible at 15th step, then at the 16th step the sound gets significantly quieter and again increases to the maximum, when I reach the final 30th step.
Similar situation takes place, when I set the amount of steps to 50. Only this time those 50 steps become divided into the first casual 15 and another 35 additional steps, where at the beginning sound also gets quieter to reach its maximum at 35th step, which is actually the last 50th.
The entry looks like that: "ro.config.media_vol_steps=30"
It seems like it doesn't override the default setting, what is supposed to do from what I read.
I also tried other way. I found that decompilation of framework.jar file allows to modify AudioService.smali, to achieve the same result.
But this is demanding some serious knowledge, and I'm a total newbie to this, so I achieved nothing. Especially, that I couldn't find a proper framework.jar file, since it is probably in the different location, then described and probably compiled into the *.oat file.
If there's a way to solve my problem by editing the biuld.prop file or other *.prop files? I'd rather do it this way. If not, I think I will be persistent to achieve my goal, hopefully with some help. : ) Mostly because I find it really disturbing not getting possible a proper volume level over the remote control in the headphones, and getting it manually through some apps, equalizers is not what I meant by obtaining new headphones.
Hi viekowy
I understand your frustration totally as I have gone down the same road.
The build.prop thing works on AOSP ROMs, but not HTC Sense based ROMS.
I don't believe there is a solution, except I have found that the POWERAMP Player app has an option to increase volume steps that actually works on HTC Sense ROMs!
https://play.google.com/store/apps/details?id=com.maxmpz.audioplayer
USB Audio Player also has volume steps option, but it doesn't work on HTC Sense ROMs.
https://play.google.com/store/apps/details?id=com.extreamsd.usbaudioplayerpro
So I've stuck with Poweramp Player as it plays 24bit flacs and is a fully featured HD Audio player.
I would like to know how the programmers of Poweramp Player overcome this problem as I have other players that would benefit from 50+ volume steps.
I use Ainur Audio mod as it makes a vast improvement on sound-staging and fidelity. (I don't use Viper etc).
https://forum.xda-developers.com/android/software/soundmod-ainur-audio-t3450516
Give it a try and let us know how you get on.

Is an Eq app for high range (30-40dB) boost possible?

I have mild to mod hearing loss. I have hearing aids but there are cases where wearing them is not possible or desirable, a key one being when using NC headphones. So to compensate I have searched high & low for an Equalizer app or any other audio amplification category type app that can boost on-board/streaming volume by frequency. Basically it "should" be as simple as an Equalizer app that has the abiity to boost up to say 30-40dB (or more) but the highest I've ever seen is 18dB. Most apps only run 6-10 band to max 10 or 15dB. Even Neutralizer that appears to sort of fit this need can only boost to 10!
There seems to be an abundance of apps that target hearing impaired but they are either hearing aid paired apps & just control the aides or they try to substitute for aides & amplify ambient sound - ie amplify microphone input. One of these Petralex goes to 30dB, which makes me think it is technically possible.
So bottom line is I have to wonder if it is technically just not possible; Android doesn't allow that level/power of amplification or is that there is just not enough perceived need for something along these lines. I could see it as an add for the headphone makes but again - eg: Sony MX headphones companion app has an Eq but only boost to 10dB - meant for taste not hearing loss.
I have a DEV background but have worked in sys admin for 10+ years now - IF it is possible I may entertain the idea of giving it a shot myself even if only for my own use.

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