Alien type noise

Hello ams1778,

Thanks for reaching out to the Apple Support Communities! We understand you are experiencing an issue with a strange sound coming from your iPhone sometimes. We are happy to help look into this with you.

When you heard this sound, was it coming from the earpiece on the iPhone or did it come from the speaker? Did you receive any sort of alert or notification at the time you heard those noises? If you check in Settings > Sounds & Haptics and go through your Sounds that are currently assigned, are any of those sounds the same as the one you heard?

Use tones and ringtones with your iPhone, iPad, or iPod touch

Keep us updated.

Best Regards.

Thanks for keeping us updated. In your Sounds & Haptics section in Settings, the sound you heard is not currently set to any of the alerts or notification sounds you have? If you haven't already, we would suggest making sure your iPhone is running the most current iOS version by going to Settings > General > Software Update.

If the issue persists afterwards, we would recommend reaching out to Apple Support directly for additional help. You can reach out directly using this link: Get Support