Hi Kundan,
You can find the commands and settings through the Switch -> Help (Menu) -> Using the Switch Command-line Tool (Windows only)
E.g A Sample cmmand can look like:
"switch.exe" -clear -convert -format MP3 -outfolder "D:\TGT" -overwrite always -settings VOX MULAW 8000 1 -hide -exit "D:\source.mp3"
For better conversion you can also apply "-insettings".