iPhone 15 Pro Max muffled rear video audio and poor battery life
iPhone 15 Pro Max – Native Camera rear video audio is muffled/low, but other apps are perfectly clear + poor battery backup
Hi everyone,
I’m having two issues with my iPhone 15 Pro Max and I’m trying to figure out whether they are hardware-related or software/iOS-related.
1. Rear camera audio problem
When I record a video using the native Apple Camera app with the rear camera, my voice sounds noticeably low, muffled and less clear.
However:
- Voice Memos → clear
- Phone calls → clear
- Front camera video → clear
- Instagram camera using the rear camera → clear
- Other camera apps → clear
- Native Camera app rear camera → low/muffled
So this seems strange because the microphone appears to work normally in other apps.
Things I have already tried:
- Removed the phone case
- Removed the camera/lens protector
- Cleaned/checked the microphone openings
- Restarted the iPhone
- Tried 0.5× and 1× rear camera
- Turned Audio Zoom off
- Tried different stereo/mono audio settings
- Tested the microphones by tapping near the rear camera area and the bottom microphone
- Tested by speaking very close to the phone
- Compared the same recording using Instagram’s camera
Instagram’s rear-camera recording sounds completely clear, while Apple’s native Camera app still sounds muffled.
Could this be an iOS Camera app audio-processing/microphone-selection issue rather than a hardware microphone problem?
2. Battery backup
My iPhone 15 Pro Max also seems to have lower-than-expected battery life, even though Battery Health is currently 93%.
I feel like other users with similar battery health are getting noticeably better screen-on time. I’m getting 5 hours sot.
I would really appreciate it if someone experienced with iPhone diagnostics could tell me:
- Does the rear-camera audio behavior point to a software/Camera app issue?
- Could a specific microphone be partially faulty even though Voice Memos, calls, front camera and Instagram work normally?
- Is 93% Battery Health enough to explain significantly reduced battery life?
- What diagnostics or logs should I check to determine whether there is an actual hardware problem?
- Is there anything else I should test before taking the phone to Apple/authorized service?
I can also provide sample videos, screenshots of Battery settings, and Analytics logs if needed.
Thanks!
