For advanced users. The original AM-media-type handler is part of DirectShow.
Go to codecguide.com and download K-Lite Codec Pack Full (not Basic). am-media-type codec download
If you need to AMR files (create new AMR files from scratch) for a commercial app, you must license the official SDK. For advanced users
But here’s the catch: "AM-media-type" isn’t the name of a single codec like H.264 or MP3. Instead, it is a used by Microsoft DirectShow and other multimedia frameworks to describe a family of audio/video compression formats. Specifically, "AM" often refers to Audio Media or proprietary adaptive streaming formats. am-media-type codec download