iPhone volume decreasing on its own

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.

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

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.

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.

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.

Thank you for the reply Bkush04!

This may seem like a simple step, but have you made sure your iOS is up-to-date? Updating your iOS can potentially resolve unexpected issues:

Update your iPhone, iPad, or iPod touch

If the issue persists, reach out to Apple directly to investigate:

Get Support

Cheers!

Bkush04,

Thank you for those details.

At this point it may be best to reach out to Apple directly.

You can contact them b going to Get Support.

They will take a closer look and check on available options.

Good Luck!

I've got the same issue on an iPhone 11 on 15.6 (though issue has been around for several updates).

Audio volume decreases for ~15 seconds and then increases again. There are no visible notifications that correlate, and no audio ding/sound besides the volume being dampened.

Happens when playing via Spotify, Music or Podcasts, and with no interaction with the device. Device is usually in my pocket with bluetooth earbuds, or connected to carplay and in a cupholder.

Sometimes will happen a couple of times in a short window (like twice in 10-15 minutes), other times 45mins to an hour between events.

Only thing I can think of is an app that is generating events, but without anything showing in the notification center or it playing a sound - very hard to debug short of disabling push for all my apps and slowly re-enabling them. I've just done that for all but a handful of the apps I use the most, will see if that helps.

For me, the issue looks to be sorted out now. I didn’t do anything, other than keep my phone updated. I have also restarted it more than usual while trying to figure out this bug. Seems to have sorted itself out.

The audio was lowering for any app that involved audio. YouTube, Spotify, etc. I timed it once and the audio was dropping for 30 seconds at 10 and 6 minute random intervals. It lasted for about a month. I didn’t find any relief by playing with the settings. Like it random appeared, it randomly left.