I haven't found anything online that matches my problem so i need some more input! I have iPhone 13 pro. i record lots of videos. performance videos of my music students, vlogs, travel stuff, etc. the video quality is amazing. But i have noticed something really strange started a few months ago and has gotten worse. When i record a video with the stock app with 1x lens, there is a strange constant tonal whistling sound in the background and also a higher pitched metallic hiss. mid video if i switch to 3x lense, the sound is gone. 0.5x lens the sound is WORSE. when i use voice memo, the sound problem is not there at all. so i guess its software since in recent iPhones, the camera app will merge the mix of all the microphones and adjust the stereo balance based on what lens you use.
So what i did to test this was go to my car and close the door and windows and keep the engine off, the quietest place i can go. my ears ring with how quiet it is. and i just recorded silence video with 1x lens. I took the audio into ableton and looked at the EQ. The audible tonal whistle is the 2khz peak i circled, the hiss is the 7,2khz peak i circled. the next screen shot is the cuts i had to make to remove these artifacts ( the issue is that if im recording speach or music then these cuts would affect the subject audio in the video). Below are the screenshots
BELOW THAT, ive included audio clips. one is the unfixed background sound where you can hear the weird sound if you turn it up, and second clip is after its removed which is how it should sound, how it sounds with voice memo. Is this hardware or software?
Hiss audio: Hiss audio "fixed":
So what i did to test this was go to my car and close the door and windows and keep the engine off, the quietest place i can go. my ears ring with how quiet it is. and i just recorded silence video with 1x lens. I took the audio into ableton and looked at the EQ. The audible tonal whistle is the 2khz peak i circled, the hiss is the 7,2khz peak i circled. the next screen shot is the cuts i had to make to remove these artifacts ( the issue is that if im recording speach or music then these cuts would affect the subject audio in the video). Below are the screenshots
BELOW THAT, ive included audio clips. one is the unfixed background sound where you can hear the weird sound if you turn it up, and second clip is after its removed which is how it should sound, how it sounds with voice memo. Is this hardware or software?
Hiss audio: Hiss audio "fixed":
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