Ah, I understand your question better now. The iOS Voice Memos app automatically had transcribed versions of my voice memos, so I was able to copy/paste those into the prompt.

Ideally I would not have used Voice Memos and instead recorded them in an offline app and transcribed them with MacWhisper using a local model.

We want to add this functionality into Maple, but it's not there yet. Not sure what kind of device you have, but there is likely a Whisper app that runs locally and you can feed it your audio files to get the transcribed text.