To post #SoundFiles on #Mastodon:
You do NOT have to make a #YouTube video, like in Twitter. You can post a #WAV or similar file right inside your toot. Insert it in as you would a photo, but search for the sound file on your device.
"Audio files can be any length, as long as the file size is under 40 MBs. The supported formats are MP3, OGG, WAV, FLAC, OPUS, AAC, M4A and 3GP." - @feditips
The attached file here is my #commercial #voiceover #demo.