PRODUCT DEMO VOICEOVERS
AI voiceovers for product demos that keep changing.
A new button, a clearer instruction, a different place to find the result. Update your English demo script, generate another take with the same saved voice, and bring the WAV into your video editor.
One output, up to 300 characters, for evaluation. Verify your email. No card required.
An original Sairelo walkthrough
This example explains Sairelo’s voice library, Studio and Takes. The revision clarifies that a finished take can be played in Studio, with WAV downloads available in Takes. It is an original demonstration, not a customer case study.
Match each instruction to a screen action
Show the voice library
Preview a stock voice, then choose Use in Studio. Leave enough screen time for the viewer to follow the selection.
Show the script and generation
Paste the short script in Studio and generate a take. A queued job is a waiting state; skip that wait when editing your demo.
Show playback and the WAV download
Play the ready take in Studio or open Takes to download it. The revised sentence tells the viewer where to go next.
Clarify one instruction. Hear both full takes.
Both takes use Miles, a Sairelo stock voice, reading an original English script. The highlighted sentence is the only script change. These are real generated audio files; a revision renders the whole script again.
Miles · Stock voice · English audio
Original script
Script: Start in the voice library and listen to a preview. Choose Use in Studio, paste your script, and generate a take. Open Takes to listen again or download a WAV. Your saved voice is ready when you need another version of the narration.
Revised script
Script: Start in the voice library and listen to a preview. Choose Use in Studio, paste your script, and generate a take. When the take is ready, listen in Studio or download a WAV from Takes. Your saved voice is ready when you need another version of the narration.
Both versions were generated with the same saved voice. A revision generates a full new take and uses your allowance. Import the WAV into your video editor and adjust the timing there.
Choose a voice for my demoFrom a feature update to a new narration track
Write for the current screen
Record the updated product flow first. Use the actual button names and describe one action at a time. Mark the sentence that changed before replacing the narration.
Keep the saved voice
Choose a stock voice, design a narrator, or clone your own voice with recorded consent. Reuse the same voice and delivery settings for the revised script.
Generate and compare
Listen to the full new take. Check product names, changed instructions and the ending. Each successful new version uses allowance; listening to an existing take does not.
Replace the track in your editor
Download the WAV from Takes and import it as a separate audio track. A new take can have different timing. Move the track, adjust pauses and trim the screen recording manually before exporting your video.
Sairelo creates English narration and WAV audio. Screen recording, video editing and synchronization happen in your video editor.
Try the voice before publishing your demo
Verify your email to try one output of up to 300 characters, for evaluation only and with no card. Stock voice previews are free. A successful voice design preview uses the free output. Paid plans and character packs support publishing audio you have the rights to use, subject to the Terms. Disclose synthetic audio when required.
Paid offers allow up to 5,000 characters per request. Every successful revision uses its own allowance; failed or cancelled jobs release their reservations. Playback and WAV downloads are free.
Questions about product demo narration
Can I keep the voice when a feature changes?
Yes. Use the same saved voice for the updated script and compare the full new take with the previous one. Keep delivery settings consistent, then check pronunciation and timing before publishing.
Does Sairelo replace just one sentence in my video?
A script revision generates a full new audio take. Sairelo does not edit or synchronize your video. Download the WAV, replace the audio track in your editor, and adjust it to the updated screen recording.
How should I handle product names and acronyms?
Keep a short pronunciation test within your available allowance, listen to it, and adjust the script if needed. Product names and acronyms can need another spelling or wording. A generated take still needs your review.
Can I publish what I make?
The free sample is for evaluation. With a paid plan or character pack, you can publish audio that you have the rights to use, subject to the Terms. Clone only your own voice.