Great work, Google — It's not clear if Google will let you upload pre-recorded audio files to Transcribe. But there's a way around this. If you're in the mood and have Android, you can play a pre-recorded clip in any of the aforementioned languages and let the program do its magic.
While Transcribe is merely for transcription purposes and not exactly a Duolingo substitute, we imagine it'll help people cross language barriers and foster community through multilingual storytelling, dialogue, exchange of ideas, and more.