Studio Sound Quality Specialist

I'm seeking an expert to help resolve distortion issues in my home recording studio for recording audiobooks. I'm currently using Reaper, a Shure SM58 mic, a Scarlett Focusrite 2i2, into a Dell desktop computer (Windows 11). When I record spoken audio, there's a distortion in the rendered file (like a tinny shadow on the voice)--heard mostly when listening on an iphone or ipad.

Key Requirements:
- Identify and eliminate the distortion
- Answer other questions about recording
-Able to travel to Palatine, IL

Ideal Skills:
- Experience with home studio setups, Reaper, microphones, and audio interfaces
- Strong troubleshooting skills
- Background in audio engineering or audiobook production