MP3 to WAV via ffmpeg.exe in AzureFunctions, for PowerApps and Flow
- PowerApps Microphone control records MP3 files
- Cognitive Speech to Text wants to turn WAV files into JSON
- Even with Flow, we can’t convert the audio file formats.
- We need an Azure Function to gluethis one step
- After a bit of research, it looks like FFMPEG, a popular free utility can be used to do the conversion