✦ Tutorial · Beginner

Make a voiceover in the Voice editor

Turn a script into AI voice lines, set the pace and voices, record your own takes, then export the voiceover or send it to a video.

5 lessons32 min Self-pacedUpdated 30 Sept 2026
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YOUR OUTCOME

By the end you will have a voiced, ordered script exported as one audio file or placed on a film's audio track.

Voice a script line by line Set the pace for the project and for single lines Export the mix or send it to Video
01

Voice a script from chat

Ask chat for a script and let Oppermind voice every line in the Voice editor.

6 min
02

Write and arrange lines by hand

Add lines of your own and put them in order before you voice the drafts.

6 min
03

Set the pace and choose voices

Give the project a Default speed and a voice, then override them on a line that needs a different read.

7 min
04

Record your own lines

Record a take on your microphone and place it among the AI lines.

6 min
05

Export the voiceover or send it to Video

Mix the ready lines into one audio file, or lay them end to end on a film's audio track.

7 min

What each lesson covers

The tutorial, lesson by lesson.

01

Voice a script from chat

Ask chat for a script and let Oppermind voice every line in the Voice editor.

This course uses the Voice editor in the desktop workspace on a computer. On a phone, the Voice Editor has fewer tools and no Send to Video. Ask chat for a voiceover, or start with Make a voice note about, saying who it is for and how long it runs. Oppermind writes the script as numbered lines and starts voicing them without a click, the first few before the Voice editor opens and the rest as it opens. Each generation counts towards your plan's usage. A line's dot shows its state. Grey is a draft, pulsing purple is generating, teal is ready and red has failed. With the editing chip in the composer, refer to lines by number and ask to hear a rewrite, because changed text stays a draft until it is voiced again. The chat card keeps the script as first written, so reopening it later can bring back that version instead of your edits, and on another computer it can voice some lines twice.

Practice. Ask for a short script in four or five parts, or click the Voice chip in an empty chat and finish the sentence. If Voice isn't in the row, the arrow at the end of the row shows every chip. When every dot is teal, press Play all or Space to hear the lines in order, then ask for one line to be rewritten and voiced again.

Write a voiceover for a self-guided audio tour of the Tides and Trade exhibition at our maritime museum, for Year 7 school groups. A welcome and three stops, about a minute in total.

02

Write and arrange lines by hand

Add lines of your own and put them in order before you voice the drafts.

Press + for Add line and type into the Write a line of narration… box. Keeping one idea per line makes retakes quick. A line holds up to 5,000 characters, and a counter appears once it passes 4,000. Generate on a line voices just that line, and Ctrl+Enter in its text box does the same. The sparkle button in the toolbar is Generate all, which voices every draft or failed line in turn. While it runs, Play all becomes a stop button that halts the run. The pause box on each row sets the silence after that line in milliseconds, and chat can fill it for you. To reorder, drag a line by its grip or open its three-dot menu for Move up and Move down, next to Duplicate line, Remove line and Clear audio (re-draft). Typing in a ready line turns it back into a draft. If a usage limit stops a draft, its dot turns red, a message says why and Generate all stops there.

Practice. Add a closing line of your own, give the line before it a 1,000 ms pause, and voice the new line with Ctrl+Enter. Then run Generate all to catch any drafts left over.

Open the three-dot menu on line 3 and choose Move down. Then, with the editing chip showing, type Add an 800 ms pause after line 4, and press Generate all in the toolbar.

03

Set the pace and choose voices

Give the project a Default speed and a voice, then override them on a line that needs a different read.

Default speed, under Project in the inspector, sets the pace for every line whose own Speed is blank. A blank box shows the project speed in grey, as Project speed (0.9) in the inspector. Type a number to give one line its own pace, and clear it to follow the project again. Speed runs from 0.5 to 2 and reaches the voice as a spoken direction, so treat it as a nudge rather than an exact rate. The Voice button in the toolbar opens the Project voice list, starting from Provider default, and a line's own Voice overrides it. The voices on the list can change over time. Instructions takes delivery notes like warm, slow, cheerful. None of this redoes audio a line already has. Instead its dot turns amber to mark that audio as out of date. Generate all in the toolbar skips amber lines, so press the line's Generate, or ask chat to regenerate everything. Lines voiced in older projects don't turn amber.

Practice. Set Default speed to 0.9, then give the welcome its own Speed of 1 and a different voice. Note which dots turn amber, press Generate on the welcome only, and compare it with a stop that is still amber.

Slow the whole tour down to 0.9.

04

Record your own lines

Record a take on your microphone and place it among the AI lines.

Press Record from microphone in the toolbar. Your browser asks for the microphone the first time. While you record, the button turns red and pulses and the status bar shows the running time. Press it again to stop. The take lands at the end of the script as a ready line that reads (recorded clip), tagged rec, and you can drag it into place like any other line. Recordings upload and save with the project, up to 24 MB each, and the project cannot be saved until you stop recording. Leave the text of a recorded line as it is. Typing in it turns the line into a draft that drops out of playback, though Undo brings the take back. Generate on it replaces your take with an AI voice reading the text. Gain in the inspector levels a quiet or loud take, from 0 to 1.5. Anything above 1.00 sounds the same in the editor and is applied when you export.

Practice. Record a short welcome in your own voice, drag it to the top of the script, and set its Gain so it sits level with the AI lines when you play the tour.

Press Record from microphone, read the welcome aloud, press it again, then drag the new line to position 1 and set its Gain to 1.20.

05

Export the voiceover or send it to Video

Mix the ready lines into one audio file, or lay them end to end on a film's audio track.

Export / Download in the toolbar offers MP3 · audio, WAV · audio and JSON · project. Both audio exports lay the ready lines end to end, each at its own gain and followed by its pause. Draft and failed lines are left out without a warning, and amber lines go in with their older audio, so check every dot is teal first. WAV · audio opens WAV export, where Mono halves the file size and Normalize peak sets the loudest moment to just under full scale. MP3 · audio writes a 192 kbps stereo file. JSON · project keeps the script, settings and links to the audio, not the audio itself. The film button, Send to Video, opens the Video editor and places every ready line on its A1 audio track, each one starting when the line before it and its pause end. Draft and failed lines stay behind, and sending again adds a second set. If one line's length can't be read, nothing is sent.

Practice. Check every line is ready and export the tour as WAV · audio in Mono. Then open the tour film in the Video editor, go back to Voice and press Send to Video. On a narrow pane, toolbar buttons that don't fit move into the More menu.

With the Tides and Trade film open in the Video editor, switch to the Voice tab and press the film button, Send to Video.

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Make the learning stick

Start with one real piece of work.

Open Oppermind beside the lesson, apply each step, and leave with something you can use.

Open the quickstart docs