VoiceCheap Logo

AI voice over for PowerPoint presentations

Turn slide narration into MP3 audio for PowerPoint. Prepare a script for each slide, import the files, and check playback settings in your presentation.

The free tool accepts up to 16000 characters per generation. A guest daily allowance applies. Paid use follows the limits and features of your current plan.

Preview 41 voices for free. Sign in to save cloned voices and unlock higher limits.

Free generations left today: 1 / 1

Your text
Prepare up to 16000 characters. Generate one free preview per day, or for higher limits.0 / 16000
Voice

Synthetic voice example · English audio

Hear a voice clone before you try

Listen to the reference recording, then hear new words in the cloned voice.

Reference recording

Cloned voice · new text

Sign up for one short, free voice-cloning trial. Upgrade to save and reuse your voice.

How to use it

Create spoken narration from your presentation script and add it to PowerPoint as audio. Working slide by slide makes it easier to match each explanation to the visual material and update individual sections later.

01

Write a spoken explanation for each slide

Explain the main idea instead of simply reading every bullet. Describe the relevant takeaway from charts and remove notes that are intended only for the presenter.

02

Generate clearly named audio files

Paste a slide's script, choose a voice, and review the result. Download the MP3 with a filename that identifies the slide and revision.

03

Insert and test in PowerPoint

Use the audio insertion options available in your PowerPoint version to add each file. Configure playback and slide timing, then run the presentation from the beginning.

What you can make

  • Narration for a self-paced onboarding presentation
  • A spoken explanation of a chart or process slide
  • Audio instructions for an internal training deck

Privacy first

Your draft stays in your browser until you generate. Guest audio is not saved to a personal history.

Make the result useful

Keep slide changes under the viewer's control

Decide whether viewers advance manually or watch an automatically timed presentation. Configure the audio and slide transition settings accordingly. Test what happens when someone moves backward or revisits a slide, especially if your presentation is meant for independent viewing.

Test the format you will actually share

A slideshow, exported video, and browser preview may behave differently. Open the intended delivery format and check that narration plays, charts remain readable, and transitions leave enough time. Keep a written version of the explanation available for people who cannot listen.

Try an example script

This slide shows the three stages of our project. We begin by collecting requirements, then build a small working version. The final stage is a review of the result with the people who will use it.
Explore the original tool: Text to MP3 Voice Preview

Tools

Free AI Video Dubbing

Dub any video into 70+ languages with cloned voices. Free, no account, first 60 seconds.

AI Text-to-Speech

Preview a multilingual AI voice library, choose a style, and generate a free speech preview within the daily guest limit.

Free Video & Audio Transcription

Transcribe video and audio files for free. Upload up to 60 minutes and get raw, paragraph, or sentence transcripts.

Audio to Text Converter — Free Online Transcription

Convert audio to text online for free. Upload MP3, WAV, M4A, or any audio file and get an accurate transcript in seconds — up to 60 minutes per file.

MP3 to Text — Free Online MP3 Transcription

Convert MP3 to text online for free. Upload an MP3 file and get an accurate transcript in seconds — up to 60 minutes, no signup.

Speech to Text — Free Online Audio Transcription

Convert speech to text online for free. Upload an audio or video recording and get accurate, editable text in seconds — up to 60 minutes.

Video to SRT

Generate a clean SRT subtitle file from your audio or video. Copy or download the SRT instantly for free.

Free Subtitle Generator Online

Generate subtitles from audio or video for free. Preview and edit every subtitle cue beside your video, then download an SRT.

Free Auto Caption Generator

Create automatic captions for videos online. Upload your video, generate subtitles, adjust readability, and export caption results.

Free YouTube Transcript Generator

Paste a public YouTube link and extract a clean transcript with timestamps for free. Copy the text or download TXT and SRT exports instantly.

Free YouTube Chapter Generator

Generate accurate YouTube chapters with timestamps from any public video link. Edit, copy, and download ready-to-paste chapter text for free.

Subtitle Translator

Translate SRT or VTT subtitle files online while preserving cue timing and file structure.

Add Subtitles to Video

Upload a video to add subtitles instantly. Download both the SRT file and a subtitled MP4 for free.

Free YouTube Thumbnail Maker with AI

Describe your video, add up to three photos, and create a polished 16:9 YouTube thumbnail in minutes.

Questions about this workflow

Can I upload a PowerPoint deck here?
This tool accepts pasted narration text, not a presentation file. Copy and adapt your speaker notes into the script field before generating audio.
Does it place audio on slides automatically?
No. Download the MP3 and insert it into PowerPoint yourself. Audio controls and available features depend on your PowerPoint version.
Should I generate the whole presentation at once?
Separate slide scripts are usually easier to align and replace. Each generation must stay within the limits displayed by the tool.

Translate your videos and use audio & video tools