Please tell us some basic information before asking for help:
Model Name: ZenFone 9
Firmware Version: WW_32.2030.2030.26
Rooted or not: No
Frequency of Occurrence: Always
APP Name & APP Version (If your issue relates to the app): Camera, Sound Recorder
ZenFone 9 records AAC audio at 96 kbps only (!) and has low pass filter set to ~14.5 kHz. ZenFone 8 records audio at 192 kbps, also I was able to capture 17 kHz frequency.
Is it any way to improve this in ZenFone 9 or is it possible to change the audio recording parameters?