Hope we can help.
First confirm stutter (
https://www.computerhope.com/jargon/s/stutter.htm ) and freeze (
https://www.computerhope.com/jargon/f/frozen.htm ) is the exact issue.
Since freezes are pretty extreme, they should show up in the log. Please type "Reliability history" in search box and examine the report. Click on 'details' - round red 'x' and yellow triangle '!' and share what you learn.
Source
Windows Audio Device Graph Isolation
Summary
Stopped working
Date
15.10.2018 05:44
Status
Report sent
Description
Faulting Application Path: C:\Windows\System32\audiodg.exe
Problem signature
Problem Event Name: BEX64
Application Name: AUDIODG.EXE
Application Version: 10.0.17134.137
Application Timestamp: ecd85e98
Fault Module Name: StackHash_ef15
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 00000000
Exception Offset: PCH_A5_FROM_ntdll+0x000000000009AA44
Exception Code: c0000005
Exception Data: 0000000000000008
OS Version: 10.0.17134.2.0.0.256.48
Locale ID: 1033
Additional Information 1: ef15
Additional Information 2: ef152224cfb056c292640ec09ea987fd
Additional Information 3: f48c
Additional Information 4: f48c29e719153ff2c6286cf74bcd58ff
Extra information about the problem
Bucket ID: 7b05d94e3c4512aca6d0a8cd3a4ab59e (1643999463389967774)