noun
dictation
dik-TAY-shuhn/dɪkˈteɪʃn/
The speaking of words for someone to write down.
The woman takes dictation from the recording, writing the spoken words in her notebook.

Etymology
Built on dictare, “to say often, prescribe,” this action noun first meant an authoritative utterance in English. It came to name speaking for someone to write down, and the words so delivered.
In context
it's speech to text. And to put it simply, it's basically what the built-in Apple Mac dictation button should do in my opinion.
More examples
- Her assistant takes dictation for letters to clients.
- Please slow down during dictation so everyone can keep up.
- We practice spelling with short dictations every Friday.
Forms
dictation · dictations
dictate verb — Speak words for someone to write down.
Similar words
- recitation
- Speaking aloud, often from memory, without requiring a written record.
- transcription
- Emphasizes writing down speech rather than speaking the words.