audiodg.exe is a program which is probably legit. So, if audiodg.exe is on your system, it is probably ok, and will NOT be a cause for concern. Even if your system is virus-free, it is still recommended to purchase a well-known antivirus with a good track record, in order to yourself your system against viruses and malware.
This program is normally stored in C:\Windows\System32\audiodg.exe.
The MD5 fingerprint for this executable is 00bbd8f76e64db4f49b3ce6f744bd0c2.
This program does NOT run as a Windows service. This is normally a good sign.
audiodg.exe appears to use the functions of Windows SFC (System File Checker) or Windows File Protection.
64-bit code has been detected. This application can put to good use the full power of a modern PC processor.
audiodg.exe has a digital signature. Nowadays the large majority of serious programs are digitally signed.
The digital signature found in audiodg.exe is valid. This is very good.
Digital certificate name: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This executable does NOT have an uninstall command set up in registry.