iPhone volume decreasing on its own

I had this same issue and found that it was being caused by a specific app. I have the Dexcom app and, even though I had notifications all turned off, it was still somehow trying to alert me with blood sugar notifications. You may need to delete apps one by one to try to see which one may be causing the issue.

I think I fixed this issue:

Accessibility> Audio/Visual > Background Sounds > Adjust rain volume to 50% and use when media is playing to 50%

Seems to affect this issue even when background sounds toggle is set to off.

Matching the levels instantly solved this for me

Hello Bkush04,

Have you had a chance to power cycle the iPhone? Here are the steps: press and hold the side button until "Power Off" appears. Drag the slider, then wait 30 seconds for your device to turn off. While simple, this can refresh the iOS, apps and connections. More information is available here:  Restart your iPhone - Apple Support

Do you hear a sound when you receive a message, email or other items? We want to see if some notifications are working as they should.

Are you able to determine if any app had activity that caused the reaction as if a notification was received?

Isolating the issue to the correct app will help find a solution.

Have a good day.

Agree. I had an app called Dexcom for blood sugar management. Even with notifications turned off, it kept sending those “ghost notifications” you so aptly called. I deleted the app, problem solved. Apple had no idea what to do and they SWORE it had to do with spatial audio and even got annoyed when I told them that wasn’t it. I would urge anyone with this issue to try and delete apps like the one I mentioned and see if it solves the issue.

Okay, hear me out please, because this is something that kept happening to me. On at least one song (Spiritbox's "The Summit" between 50-55 sec in). At the same spot. Every bleeping time.

Could it be the equalizer settings you're using? I had mine on "Late Night," which was causing the problem. Bluetooth, wired headphones, anything. It was only on my iPhone 13, as well. No problems on iMac nor iPad. Trying to eliminate possibilities, it finally hit me that the only thing different between it and the other things was the EQ had been set. Just turned the EQ setting off and that fixed the problem. At least for me.

Settings -> (Apple) Music -> EQ ->None/off

I'm assuming Apple Music because the icon is the same as Apple Music. I was also not having problems with drops on YouTube Music.

There is a sound option that is on by default for tracking notification. Settings > Notifications > Tracking Notifications. That was it for me!

I fixed it by turning off conversation awareness on mu airpods pro.

i went settings, selected the airpods pro and then turned off conversation awareness.

This was a good tip.

Issue followed me to iOS 16.

I removed a few apps I wasn't using anymore, but still had a lot of infrequent use apps I wanted to keep.

So I went through Settings, and for almost all the apps (besides my ~10 most frequently used ones), disabled "Background App Refresh" and "Cellular Data" for any of them that had those settings available.

Since doing that I haven't had an audio brownout in 2 days (and several hours of listening). Hoping that's got it, and if I re-enable those settings as/when I need to for low use apps, eventually might work out which one is causing it.

Hopefully someone else can give that a try and see if it solves the problem for them.

Mine was doing the same thing. Go to settings then sounds and haptics and turn your ringer volume up and it instantly turned my sound up. The buttons on the side only control the music sound volume unless you change it in settings. Me turning my ringer volume all the way up solved it for me.

Hello, I also faced this issue on my iPhone 13 pro, this issue makes sound silencer in random moment on AirPods, iPhone speakers, any device connected, no matter, also if silence mode switcher is on. As all mentioned here it takes 10-15 seconds and then sound level returns back.

What I did, firstly checked that all notifications had notification banner turned on, but it didn’t help.

Then just disabled at all notifications from all applications except some important. And this issue disappeared totally, so, some of applications generate ghost notifications. Please, try and reply then on this message if it helped in your case.

Not sure if this is the same problem others are having but my volume was always getting muted or lowering. I eventually learned it was my Apple Watch muting it whenever the screen was getting covered randomly against my body or something. I disabled the mute when covered option on the Apple Watch to avoid this.

I think I solved it.

I turned off Headphone Accommodations and it hasn’t happened again.

accessibility > audio/visual > headphone accomodations

Turning off Headphone Accommodations solved it for me as well!

Thanks @brye193

I’ve done two things that seems to have worked:

1. Restart your iPhone: turn your iPhone off and wait for at least 30 seconds, then restart your phone. I do this before charging my phone.
2. Reinstall iOS: I downloaded the ipsw file of the iOS version on my phone and reinstalled it. A re-install, as opposed to a restore, will keep all your data on your iPhone.

I’ve only reinstalled iOS only once but continue to restart my iPhone before charging. I’ve been doing this for about a week and haven’t seen the issue in question since.

i had just installed the Dexcom app and thought I had turned off all notifications.

it appears the app wants me to calibrate my sensor and is still trying to alert me.

I’ll post an update tomorrow one I try playing music again pretty sure this is the issue.