yashsingh1/xdaforums huggingface dataset:
[Xiaomi Mi A1 Questions & Answers] sk8223:
I'm interested in buying this phone but I'm holding off on it because of this widespread headphone audio issue. I'm surprised that this is such an issue... especially since the phone's supposed to have a 10v amplifier and Xiaomi's marketing the phone's HD audio? WTF.

I just need to know if this is affecting only Indian models or all models.
[Xiaomi Mi A1 Questions & Answers] robgee789:
It's not that big of a deal mate you can only for a couple seconds when it goes silent, the audio on this is great
[Xiaomi Mi A1 Questions & Answers] sk8223:
What about this thread? https://www.reddit.com/r/Xiaomi/comments/71xrqz/mi_a1_headphone_static/

Seems like a fairly serious issue. And I like my volume loud (90+) so if static is apparent at higher volumes, I'll be extremely upset.
[Xiaomi Mi A1 Questions & Answers] gougous3:
I'm extremely skeptical about the audio quality of this device. I can totally see it being above average or devices from the same price segment but I'm sure it isn't something from another world. People seem to over praise it and I'm sure most of them are just considering loudness as audio quality.
[Xiaomi Mi A1 Questions & Answers] robgee789:
with some half decent earphone this phone sounds great not just loud mate
[Xiaomi Mi A1 Questions & Answers] chrone:
I'm having same issue.

This might caused by the audio amplifier boosted the volume gain which increases the static noise and taints audio clarity.

Earphone/headphone which has more than 35ohm impedance and low sensitiviy pressure level below 98dB might have better chance with the boosted gain.

Even on ATH M40X, the background static noise is still noticeable when sound is played. *sigh

I wish the amplifier is disabled by default and could be enabled on demand from equalizer app.
[Xiaomi Mi A1 Questions & Answers] gougous3:
[MENTION=4628255]chrone[/MENTION] Exactly, I'm willing to see how it will perform with biquads mod (if it is possible)
[Xiaomi Mi A1 Questions & Answers] robgee789:
Hey guys I've just noticed that I get the same hissing sound on my nvidia shield K1 but I never noticed it lol
[Xiaomi Mi A1 Questions & Answers] anirbanctts:
Same issue

I bought it today and finding it really irritating.
[Xiaomi Mi A1 Questions & Answers] amithiel:
Do Bluetooth earphones make any difference?
[Xiaomi Mi A1 Questions & Answers] kdng:
I just tested it with my bluetooth headphone. It's working good and I don't hear any weird sounds/hissing etc. But does the amplifier work if I use bluetooth headset?
[Xiaomi Mi A1 Questions & Answers] amithiel:
I bought ones from JBL, no difference. A LOT of hissing :/.

Maybe someone can fix this in a custom ROM?
[Xiaomi Mi A1 Questions & Answers] kdng:
Seems like a low impedance problem? There is a thread on reddit about this:

https://www.reddit.com/r/Xiaomi/comments/71xrqz/mi_a1_headphone_static/
[Xiaomi Mi A1 Questions & Answers] mhdazhar:
Audio Quality is awesome on both the speaker and headphone jack. I have no issues. I am already getting mod like quality from this one.
[Xiaomi Mi A1 Questions & Answers] moliverac8:
I have this problem too using Audio-Technica Mx 40x and xioami hybrid. It's becoming quite annoying

Enviado desde mi Mi A1 mediante Tapatalk
[Xiaomi Mi A1 Questions & Answers] moliverac8:
I have read that Xiaomi released the Mi5 kernel sources 6 months after they started selling the phone. They did the same with Mi6. So I guess that we will receive it in 2 months +-. Hope that someone fixes the hiss when that happens.
[Xiaomi Mi A1 Questions & Answers] Diaphragma:
I can confirm that there is hissing when playing from the phone speaker on low volume on Nougat, and it's quite bad.
[Xiaomi Mi A1 Questions & Answers] adfds:
DIRAC HD is a software algorithm like Dolby, not a hardware feature. How about you learn to read your own links before trying to educate other users.

DIRAC has nothing to do with the hissing noise.

LG V30 can also support 600 ohm headphones and also does not provide hissing on low impedance headphones.

Just because device has a high amplification does not mean it will provide hissing on a low impedance headphone. There is something wrong with the Mi A1 to produce hissing sound.
[Xiaomi Mi A1 Questions & Answers] pooniaprashant:
Strange, some other people have also mentioned it, either it's pretty hard for me to notice that or its not the case with my device, can you suggest a easy way for noticing it, or does anyone has decibel meter to confirm the same?
[Xiaomi Mi A1 Questions & Answers] Tubixak:
I just played the first video on YouTube I saw. And the hiss was there. So if you don't hear anything after trying few videos, I think you are fine.
[Xiaomi Mi A1 Questions & Answers] pooniaprashant:
i would like to suggest you a replacement if thats available in your country.
[Xiaomi Mi A1 Questions & Answers] billysam:
How about you read my first post here. before trying to enlighten me with something I already explained.

I didn't do much research on the LG V30, even if it does support 600 ohms and you are right, I know for a fact that It doesn't have a 10V smart power amplifier. Most of the smartphones operate on 2V amplifier. if you really do understand the concepts, you wouldn't be arguing with my point.

There is a reason why people using lower impedance are experiencing more than the people with higher impedance headphones.

Static sound can be the result of many factors, weather, bad connection, electrical interference from sensors or even your 4G connection, other phone devices or your DSL connection in the house, it's hard to determine the actual cause in every case.

A 10v amplifier coupled with a lower impedance headphone can cause such noises to be heard in the case of lower impedance where it offers lesser resistance compared to the higher one. on a 2V amplifier it's not a big deal, but 10v with 8 ohms or 16 ohms resistance?

Now I hope my last comment here make some sense. I am not here trying to make fun of anyone or trying to say I know all about music and devices and physics, but to solve an issue you must first understand what you are dealing with here.
[Xiaomi Mi A1 Questions & Answers] pooniaprashant:
Sorry to say but each of us know what we are dealing with here. Your comment isn't the first to point out lower impedance earphones are prone to this, so there's no need to bully others for no reason when your comment brings nothing new to the table and everyone knows:

1. Audio is ****

2. Low impedance earphones have high chance of hissing, [there are some low impedance earphones that aren't facing this, and some high impedance are also facing this]

If you're not having this, just shut up and let others who are facing this issue comment.

---------- Post added at 11:27 AM ---------- Previous post was at 10:42 AM ----------

Not working cheap low quality earphones

- https://imgur.com/NkdyY7T

high quality earphones exclusively meant for mi a1

- https://imgur.com/USNEc0B

another top quality earphones exclusive to mi a1

- https://imgur.com/xd7JvKK

amazing, world class, the best, the undead, king in the north, mother of dragons mi a1's high quality earphone jack :cool:

im autistic n i'll kill everyone who'll complain mi a1's audio experience, fool people know nothing, i am the best, i know everything.
[Xiaomi Mi A1 Questions & Answers] Lecturer in Recent Runes:
Talking about bullying... Pots and kettles etc.

You can post pictures of different headphones all you like, but that doesn't change the simple fact that it looks like not all headphones are compatible with the A1. This impedance issue is something that you see with mismatched amps and speakers and I think there should be a possibility to fix this through software.

Blaming the headphone jack is simply stupid, as that itself is not the problem. It works well with higher impedance headphones and also provided great sound when connected to my Denon receiver. The hissless sound is there, but at the moment you just need the right speakers to hear it. That said, I do feel that Xiaomi or Dirac should come up with a software fix.

Verstuurd vanaf mijn Mi A1 met Tapatalk
[Xiaomi Mi A1 Questions & Answers] pooniaprashant:
I do agree with your last part, but your my point here is "only low impedance earphones are having this issue" isn't accurate, my pics were to show how many cheap low impedance earphones work well on mi a1, which btw is totally related to op. Your not liking that isn't my concern.

I can agree to my sarcasm was exaggerated, but that was for some teachers who simply want us to hail the audio performance.

The basic functionality of an audio jack is it being universal, but when you have a jack that won't sound good with random 8 out of 10 earphones, then no matter how good it sound with those 2 earphones, people with the rest 8 earphones will complain. Not everyone has the time to **** around forums.
[Xiaomi Mi A1 Questions & Answers] arvind7955:
List of compatible in-ear earphones for Mi A1

For the love of god will someone please tell me which earphones are working with this device.

I'm currently using sony ex-15ap and the hissing is so fuc**** bad.

I listen to slow music that too on very low volume and I'm unable to listen to anything.
[Xiaomi Mi A1 Questions & Answers] Lecturer in Recent Runes:
And what are the other specs of those headphones? Are they the same with regard to sensitivity etc? Could be that there is also a cause there.

Apparently there are combinations that work and combinations that don't. I would be very interested in finding out what the common specs are of the headphones that work well.

And I still believe that you shouldn't blame the audiojack, but the amp and/or the software that drives it. An audiojack is just a piece of metal, the signal that goes through it is what causes the problems.

Verstuurd vanaf mijn Mi A1 met Tapatalk
[Xiaomi Mi A1 Questions & Answers] pooniaprashant:
Hmm, they might be less sensitive. That's the only explanation I can think of.

They shouldn't be more than 16ohms, one is Moto g's OEM earphone and other is some a cheap unbranded one I bought from a local shop in an emergency.

Xiaomi should have mentioned the clear specs that would definitely work on this device if they had to do something like this. This is very unprofessional.

Will have to use them till I find something which I am sure of will work on mi a1 at a reasonable price. Happy new year [emoji847]
[Xiaomi Mi A1 Questions & Answers] wulfe13:
Hmmm I'm using Mi Piston Fresh and Mi Pro Hybrid, both 32ohms.. i barely hear any hissing on them, it's just like a bit of stereo noise. On my KZ ZS3, the hissing is more audible; it's 16ohms
[Xiaomi Mi A1 Questions & Answers] pooniaprashant:
thanks for the info, please mention the earphones that you tested working here too, https://xdaforums.com/mi-a1/how-to/earphones-mi-a1-t3728581 :)

I've started a thread where users can input there working earphones so that others can match which ones match their region's availability and budget. Would me much helpful then the useless pages here.
[Xiaomi Mi A1 Questions & Answers] Diaphragma:
Go to a quiet room and watch a video of someone talking and turn the volume down. You'll hear a lot of hissing.
[Xiaomi Mi A1 Questions & Answers] pooniaprashant:
i tested with playing no sound video with max volume and brought my ear as close to speaker as humanly possible, atleast for me no sign of hissing there,

almost 50% casual videos of someone talking on youtube have a background noise, due to average noise cancellation on devices they use to record them
[Xiaomi Mi A1 Questions & Answers] bubundas17:
Yap, I am Also getting the issue. Is it a bug?
[Xiaomi Mi A1 Questions & Answers] whoadood:
What the hell are you talking about the speaker? We're talking about earphones here.

---------- Post added at 06:46 PM ---------- Previous post was at 06:44 PM ----------

We have already determined that you need earphones with a high impedance (32 ohm or more) to avoid the hissing.
[Xiaomi Mi A1 Questions & Answers] arvind7955:
Suggest me some of those please.
[Xiaomi Mi A1 Questions & Answers] pooniaprashant:
look his previous comment, he said "phone's speaker",

i just replied that phone's speaker fine.
[Xiaomi Mi A1 Questions & Answers] _mysiak_:
Loud speaker is hissing as well, but personally I don't care about that too much as I rarely use it.
[Xiaomi Mi A1 Questions & Answers] Diaphragma:
Well, you did the exact opposite of what I suggested. Let's try again. Make sure you're in a quiet environment. Open a video of someone talking with no background music, and turn the volume down (not up like you did). If you have the volume at lowest level without muting the speaker, you'll hear static noise as the sound turns on and off when they're speaking in the video. I can assure you this is not from the videos audio, but created by the phone.

I can hear the hissing at all volume levels on both the speakers and headphones, but it's way more prominent on lower volumes when audio is going from silent to audible and vice versa.
[Xiaomi Mi A1 Questions & Answers] pooniaprashant:
[emoji44][emoji44]

I wasn't even in a completely quiet environment and I heard it, though one thing is for sure audio signalling in this device is not done properly, bottom firing speaker also hisses but that's a different kind of hissing. There's basically 2 type of hissing I am noticing on this phone

With earphones: both are present when using earphones

1. there's a static hiss that starts with the audio and ends a second after that, its constant.

2. Sputtering noise, means hissing sound that fluctuates with the audio that you are listening to.

With bottom firing speakers: only Sputtering noise is present, static noise isn't there but sputtering noise is clearly audible when you follow the steps mentioned in above comment. Well I agree that this sputtering noise isn't something to worry about, its just to note that same thing is much more noticable with earphones and shows the poor audio processing here.

The video I watched for testing, keep the speaker volume at level 1 and listen to the audio: https://youtu.be/GtMkAAUtNT0

---------- Post added at 08:50 PM ---------- Previous post was at 08:41 PM ----------

Xiaomi has cranked up the audio gain way too high on this phone just to let them boast how loud the speakers are, as I have said earlier, loudness doesn't mean quality. I worry about the speaker life of this phone, they are completely showing signs of not being able to handle that audio gain, this will lead to speaker damage in the long run.

There's a saying in hindi "खोखला घड़ा बाजे घना।"

which somewhat means this in english- useless things scream too loud
[Xiaomi Mi A1 Questions & Answers] melonfresh:
Visit your favourite shops, either online or in person. Find a pair that suits your budget. Turn the packaging around and look for technical specs. There you will find impedance number with an ohm (Ω) symbol on it. You want ones that are higher than 32, bigger number is better.
[Xiaomi Mi A1 Questions & Answers] williamtavares:
Got my red A1 today and didn't notice any hissing while playing music lower than 50% or above (which is impossible due the loudness).

What I did notice is that if you plug the headphones and use the phone, Everytime a sound play you'll listen to some static the channel will produce after the sound, but it's like one second long then it goes away, not that perceptive thought.

I used some Sony mdr and Skullcandy ( both 16 ohms).

Audio on this phone is brilliant.
[Xiaomi Mi A1 Questions & Answers] SeniorWrangler:
Did some testing yesterday and discovered that the cheapest, crappiest headset I have (came with a Huawei Y100 years ago) doesn't hiss... These oldies have a higher impedance, so no surprises there.

I also ordered a pair of Soundmagic E50C, which have an impedance of 51 ohms. As I read that the E10C (46 ohms) doesn't hiss, I guess these should be ok too.

Etymotic also have higher impedance earbuds, but they come at a price and the remote is apparantly IOS only....
[Xiaomi Mi A1 Questions & Answers] adfds:
I have used the E10c before but not with Mi A1. They have very low bass compared to the CX275s and XB55AP I own.

But the reason I dont use them is because they dont fit my ear. They keep falling out. They come with like 5 pairs of tips but none of them fit my ear.

I compared the size with my cx275s and xb55 and the soundmagics are narrower than them.

A lot of reviews on Amazon have complained that they have poor fit.

So soundmagics are out even if they dont produce hiss.
[Xiaomi Mi A1 Questions & Answers] SeniorWrangler:
You should try them with foam tips for a perfect fit. But perhaps Etymotic is an option for you? Depends a bit on whether you need the remote functionality.
[Xiaomi Mi A1 Questions & Answers] abdielmaiden:
Is it confirmed that every MI A1 has this hissing problem? I just bought this phone and tested it with some old crappy and cheap Sony earphones (I think i bought them years ago for like 5 bucks lol) and I cant hear this hissing everyone is talking about, am I deaf or something...
[Xiaomi Mi A1 Questions & Answers] pooniaprashant:
As pointed out earlier, some cheap old headphones have high impedance, that might be the case with you to. If the particular headphone you are using isn't hissing and fits your ears then you should be happy that you got lucky [emoji28]

Just worry about not to loose them [emoji23]

And yeah, hissing is there in almost all mi a1's, reason for hissing is also mentioned in earlier comments.
[Xiaomi Mi A1 Questions & Answers] Fredoslaw:
When it comes to sound quality, this is the worst device I have ever owned. That is paradoxical given the fact that Xiaomi is boasting about its sound superiority, it is one of its selling points. I listen podcast a lot. I mean, a lot. Podcast Addict is my most used app. I do it mostly in public transport, and walking the streets. I use Panasonic RP-TCM125 Headset (16 Ohm). Its very comfortable, blocks outside noise, ideal for my purposes. With Mi A1 I hear hissing almost all the time. In podcasts people talk. When they talk there is silence between words, between sentences. Or at least it is supposed to be. With A1 there is a pattern: word-hiss-word-hiss-word-hiss... It's making me crazy. I tried different small earphones I own to the same effect. I also have big Philips SHP2500 Headphones (32 Ohm). No hissing! But.... 6 meter cord makes it impractical outdoors. Also, they don't block noise at all, so I have to set high volume to understand anything. High volume means horrible sound quality with this set (Mi A1 + Philips SHP2500) - no bass, sharp trebles making my ears bleed. I will probably have to buy myself new headset (Bluetooth?), Mi A1 seams to be a source of problems and expenses.

I love A1 design, its processor, RAM, ROM, pure Android, battery (48h+ for me), screen. But sound quality (also in recorded videos) and mediocre photos makes me think I've made wrong choice buying it, and it was very expensive for me, so I'm probably stuck for ~2 years.

PS. Problem with hissing also exist with built in speaker. With minimal volume it is really audible.
[Xiaomi Mi A1 Questions & Answers] Fredoslaw:
You are probably right, that doesn't give me much comfort. Any way I look at it - expenses. Soundmagic E50C looks nice, but it is in my country almost 10x the price I'm willing to pay. For the time being I'm thinking about buying something like this: https://www.aliexpress.com/item/3-5mm-Male-To-Female-3-Pole-Plug-Jack-Stereo-Audio-Aux-Cable-With-Volume-Control/32832778631.html?ws_ab_test=searchweb0_0,searchweb201602_2_10152_10151_10065_10344_10068_10342_10343_10059_10340_10314_10341_10534_100031_10084_10604_10083_10103_10304_10307_10301_10142,searchweb201603_36,ppcSwitch_5&algo_expid=62d5bcee-5fbd-4132-836e-9c3207ed6ef8-0&algo_pvid=62d5bcee-5fbd-4132-836e-9c3207ed6ef8&priceBeautifyAB=0 (extension with volume control) That should give me control over impedance. It is not beautiful solution, nor is it comfortable. And i loose microphone. But it is cheap.

Please write if E50C helped with our problem.
[Xiaomi Mi A1 Questions & Answers] _mysiak_:
Please let us know if it helps and if it works with 4pole connectors. I have 50ohm impedance adapter which helps to eliminate the noise, but doesn't work with 4 pole jacks (headphones with mic/button).
[Xiaomi Mi A1 Questions & Answers] HEIS3NBERG:
Sorry I'm late for the war but I'm sick of this hissing sound, do you guys have any link to buy an headphone without this issue or that reduce it?
[Xiaomi Mi A1 Questions & Answers] sitolupion:
since some headphones with 32Ohm also produce hiss, anyone who has more than that number.
[Xiaomi Mi A1 Questions & Answers] soralz:
Anyone tried USB-C headphones? Does it produce hissing sound? I wanna know first before tossing more money into unrelated stuff and still produce hissing sound. If USB-C doesn't produce hissing I might buy another USB-C to 3.5mm converter or just USB-C headphone.
[Xiaomi Mi A1 Questions & Answers] chanx:
I have Soundmagic E10C headphones.. there is no hiss whatsoever.. sound quality is one of the best.. may be it's because of 46ohm impedance of the headphone.
[Xiaomi Mi A1 Questions & Answers] harshu0101:
Is sound loud enough? My 70% of hearing is gone, that's why I'm asking. If its loud enough then it'll help me talk on phone
[Xiaomi Mi A1 Questions & Answers] tazzes:
Impedance adapter with 4 poles

I'm new here and I just got a Mi A1... I have a pair of Etymotic hf5 with 16Ohm of impedance... the hissing is pretty bad!

I've been able to find an adapter with four poles... but it's very expensive!

I still cannot post external links, but look for iEMatch by ifi audio.
[Xiaomi Mi A1 Questions & Answers] chanx:
Yes the output is pretty loud.. I think you need to keep at max volume if you have hearing problems.
[Xiaomi Mi A1 Questions & Answers] soralz:
Really Xiaomi? Advertise the audio is among one of the selling point of the phone but gives such crappy audio quality and after 4 months still didn't fix this crap. Btw, I tried my Logitech speaker act as an impedance adapter, the hissing sound straight gone, nice and clear (need to raise 3-4 bar to achieve the same volume without impedance adapter). But ofc I am not carrying my PC speaker on the go. Earphone is Sony MDR-XB50AP, official site advertise it's impedance is 40ohm but the hissing is much worse than my Mi In Ear Pro HD 32ohm, probably is just 16ohm idk.

I tried this one by doing the exactly opposite but didn't help reduce the hissing, just the sound kinda distorted now, hiss still there. Maybe someone can try and check the mixer_paths.xml and see what they can do with it?
[Xiaomi Mi A1 Questions & Answers] harshu0101:
Ok thanks. I currently have CX 275s and its loud too. I hope E10C is as loud as CX 275s or more.
[Xiaomi Mi A1 Questions & Answers] chanx:
Can't say the comparison with CX 275s .. Never had one...
[Xiaomi Mi A1 Questions & Answers] _mysiak_:
Thanks for sharing, but that's TRRS-balanced connector, won't help with connection of standard TRRS headphones.After further reading, it seems that it really might be working also with standard headphones with mic/button. For HF5 you can buy any impedance adapter, 50ohm one works very good and it's pretty cheap on eBay.

---------- Post added at 11:04 AM ---------- Previous post was at 10:56 AM ----------

I tried modified mixer_paths.xml with gain set to 1 (max is 100 as far as I remember), it made absolutely no difference.
[Xiaomi Mi A1 Questions & Answers] sbejjankimobile:
I am using Senheiser cx 180 earphones and the hissing sound is clear. Even if you switch on the touch sounds and open an app..it sounds hissss for sometime and off and again hissss if you touch...

I visited MI Service centre..which part needs replacement? Motherboard or a port connecting wires?

What is the solution? Any suggestions? There is a list of earphones which produce hisss and we don't know whichone to buy.
[Xiaomi Mi A1 Questions & Answers] chanx:
CX 180 impedance rating is 16 Ohms that ought to be the problem here. Regarding replacement it should be the earphones. Get a higher impedance rating earphones or an impedance adapter. I have a Soundmagic E10C which works completely fine and it's impedance is rated at 46 Ohms.. So get that if you can, I bet you will like the sound quality..