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AI Voice Over Generator for Videos, Podcasts and Ads
Paste a script into the AI voice over generator, choose a voice, and download the voice over as an MP3.
Free accounts render up to 120 characters per run. Paid plans raise that to 1,000 characters.
One script, three AI voice over styles
Each clip below reads the exact same line with a different public voice, so you can compare AI voice over online and hear how much the voice alone changes the result. Open the editor above, search the current voice library by name, and choose an available voice to render your own take.
“Great videos start with a clear script. Paste yours, choose a voice, and download the voice over as an MP3.”
Narration
Voice: Ethan
Male · calm · clear explainer
Even pacing for explainers, tutorials and product walkthroughs where clarity matters more than personality.
0:00 / 0:07
Ad read
Voice: Hannah
Female · confident · friendly
A brighter, confident delivery that suits short promos, launch announcements and paid social spots.
0:00 / 0:07
Podcast intro
Voice: Laura
Female · warm · conversational
A warmer, conversational tone for episode openers, sponsor segues and channel trailers.
0:00 / 0:07
Samples were generated in Miso One from the script shown and published without further editing.
How to generate a voice over in four steps
Whenever you generate voice over audio, the workflow stays the same, whether it ends up under a product demo, a lesson or a vertical clip.
01
Paste your script
Drop in the lines you want spoken. Short sentences and clear punctuation give the voice natural places to breathe.
02
Choose or design a voice
Preview public voices in this editor before you spend credits. To create a new voice, follow the related tool links below to the Voice Design page or the voice cloning page for your own recording.
03
Generate and listen
Render the take and play it back right away. If a word lands wrong, rephrase it or adjust punctuation, then generate again.
04
Download the MP3
Save the finished file and drop it into your video editor, podcast host or ad manager. Past renders stay in My Creations.
What creators use an AI voice over generator for
Most voice over jobs are short, script-first and revised often. These are the ones that fit this workflow best.
Use-case illustrations. Play the samples above to hear generated audio.
Video narration
Explain a product, a process or a story under screen recordings and b-roll, and re-render a single line when the edit changes.
Podcast intros
Give every episode a consistent opener or sponsor read without booking a recording session each week.
Ads and promos
Test two or three reads of the same offer before you spend on distribution, then keep the take that sounds right.
Training and onboarding
Turn course modules, safety briefings and internal how-to guides into narrated lessons that are easy to update.
Social clips
Add a voice to Reels, Shorts and TikTok videos when you would rather not record yourself on camera or on mic.
What the generator actually includes
Use the text-to-speech features in this editor, or follow the related tool links below to create a voice on the separate Voice Design and voice cloning pages.
300+ voices
A public voice library you can filter and preview before spending credits on a render.
Six languages
Voices for English, Chinese, Japanese, Korean, Spanish and Portuguese scripts, selectable from the language menu.
Mixed-language lines
Scripts that drop an English product name into another language can stay in one generation.
MP3 download
Every successful render can be played in the browser and saved as an MP3 file.
Voice Design
On the Voice Design page, describe the age, tone and pace you want to create a new synthetic voice. Open Voice Design using the related tool link below.
Clone your own voice
On the voice cloning page, upload or record a short sample of your own voice to create a private voice for future scripts. Open Voice cloning using the related tool link below.
Voice over vs text to speech: how they relate
A voice over is the job; text to speech is one way to get it done.
Voice over describes spoken audio that sits on top of something else: narration under a video, the announcer in an ad, the host who opens a podcast. Traditionally a person records it in a booth or at home, and an editor places it on the timeline.
Text to speech is the technology that reads written text aloud. An AI voice over generator applies that technology to the voice over job, so the useful questions change: does the voice match the brand, is the pacing right for the cut, and how fast can a line be fixed after feedback?
In practice, creators still write the script, choose the performer and approve the take. The difference is that the performer is a voice you pick or design, and a revision is a new render instead of a new recording session. If you only need to hear text read aloud, the general text to speech tool covers that; this page is tuned for scripts that end up in a finished piece of media.
AI voice over generator vs voice actor vs recording yourself
All three approaches produce good voice overs in the right situation. The table compares how they behave on a typical short script, without inventing prices or turnaround times that vary from project to project.
| Decision point | AI voice over generator | Hiring a voice actor | Recording yourself |
|---|---|---|---|
| Getting a first take | Render in the browser as soon as the script is ready. | Depends on casting, availability and the brief. | Needs a quiet room, a microphone and a few attempts. |
| Changing one line | Edit the text and generate that line again. | Usually a pickup session, often billed separately. | Re-record and match the room tone of the original. |
| Performance range | Strong for clear, steady reads; you steer delivery with wording and punctuation. | Full human interpretation, direction and character work. | Authentic, but limited to your own voice and experience. |
| Consistency across episodes | The same voice stays available for every new script. | Consistent while the same actor remains available. | Varies with health, energy and recording setup. |
| Rights to check | Plan terms, your script rights and consent for any cloned voice. | The usage license in the actor's contract. | Your own script, music and footage rights. |
Choose the generator for short, frequently revised scripts; hire an actor when a performance carries the piece; record yourself when your personal voice is the point. Many teams mix them, for example by drafting with AI and bringing in an actor for the final hero spot.
Limits and rights to know before you publish
Clear boundaries save rework, especially on client and paid-media projects.
Free accounts can generate up to 120 characters per run; paid plans and credit packs allow up to 1,000 characters per run.
Public voices use 1 credit per 100 UTF-8 bytes of text, which is roughly 100 English characters or about 33 Chinese, Japanese or Korean characters. The editor shows the estimate before you generate.
Longer scripts are generated in sections, then joined in your audio or video editor.
The generator creates speech audio only. It does not edit video, sync to a timeline, write captions or dub existing footage.
Delivery is shaped by the voice you choose and how the script is written; there is no separate emotion slider.
Use generated audio according to the Miso One Terms of Service and the rules of the platform where you publish it.
Clone only your own voice or a voice you have written permission to use, and never imply that a real person endorsed your content.
AI voice over generator FAQ
Short answers to the questions people ask before their first render.
What audio format do I get?
This AI voiceover generator renders MP3 audio: each successful take can be played in the browser and downloaded as an MP3 file, which imports cleanly into common video editors, podcast hosts and ad platforms.
Which languages can the voice over be in?
The voice library covers English, Chinese, Japanese, Korean, Spanish and Portuguese. Choose the language in the editor to see matching voices; scripts can also mix in English words such as product names.
Can I use the voice over in commercial projects?
Use generated audio under the Miso One Terms of Service and check your plan on the pricing page for client work or larger productions. You remain responsible for rights to the script, footage, music and any cloned voice.
How do I handle a long script?
Split it at natural breaks such as scenes, slides or paragraphs, keep each section within your per-run limit, and generate them one after another with the same voice. Then place the MP3 files in order in your editor.
Do I need a microphone?
No microphone is needed to use public voices in this editor. On the separate Voice Design page, you describe a voice in text. On the voice cloning page, you can upload an existing recording or use a microphone to record your own sample.
Do I need an account to generate?
You can explore voices and samples without signing in. Generating and downloading audio requires a free Miso One account, which comes with 15 welcome credits.
Can I make the voice sound like me?
Yes, with your consent. Create a private voice from your own recording on the voice cloning page, then switch the editor to your private voices and select it.
Related voice tools
Go deeper on a specific part of the voice over workflow.
Sources and policies
Read these before using generated or cloned voices in published work.
Turn your next script into a voice over
Use this voice over maker with the sample line or paste your own, compare a few voices, and download the take that fits.