The app makes it easy to play a recording of an interview while you type a transcription of what was said.
Important note: This app does not automatically transcribe the speech for you - it's a utility to make it easy for you to type up what was recorded.
Using a set of keys that are not normally used in transcription, a typist can pause, go back, replay and even play at a slower speed without changing the pitch.
The keys to control play are configurable and the amount of slow down and number of seconds to skip backwards can be set.
A timestamp of how far through the recording can be inserted into the text.
Resulting text can be exported to plain text.
The document includes the audio recording so the original doesn't need to be kept after importing.
Application help has more detailed information including how to use macOS dictation.