Voicefiles -sln16 and slin

hi i wanted to play around with the voice files and i am able to find them in the /usr/lib/asterisk directory. when i check the logs it says it is using the ‘vm-password.slin’ file as an example. i only see sln16 in this directory.

also is there a way for me to tell the codec to use the sln16 file instead of the slin?

Although the format is slin16, this is called slin in Asterisk, they are the same.