Voiceover to Video: turn a recorded track into matched-visual video for teams
Paste the voiceover script you would narrate. ngram reads it as the script, generates the spoken track in a brand voice, matches a scene to each line, and exports a captioned branded video for a product launch or marketing push. Uploading a voiceover you already recorded is coming soon.
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How it works
Four steps. About three minutes of waiting.
No timeline project, no dragging stock clips under a waveform, no scene-by-scene matching by hand. Paste the voiceover script, accept the storyboard, ship a branded video.
Paste the voiceover script
Drop in the script you would narrate, up to 4,000 characters, and ngram speaks it in a brand voice through the ElevenLabs voice library. Uploading a recorded voiceover file (MP3, WAV, M4A, AAC, OGG, FLAC) is coming soon.
ngram narrates it in a brand voice
The agent reads your script line by line and generates the spoken voiceover through the ElevenLabs voice library, marking the natural beats and topic breaks the visuals hang off. When the recorded-upload path ships, AssemblyAI will transcribe your own track into the same timestamped lines.
ngram matches a visual to each line
The agent reads each line and picks the scene that fits it, AI imagery, motion text, B-roll, or a product callout, then stamps the brand kit on every frame and caption.
Render and publish
Export 16:9, 1:1, and 9:16 in one render. Push to a /watch/ link, drop the cut to LinkedIn or YouTube, or open it in the timeline editor for a final pass.
Output controls
Smart defaults for narration. Real knobs when you need them.
Line-matched scenes
Every scene is bound to a line of your narration. Trim the script and the visuals follow, so the picture never drifts out of sync with what the voice is saying.
Burned-in branded captions
Captions ride on every export, timed to your recorded voiceover and styled by the brand kit: font, weight, position, accent color. Toggle to .srt or off per render.
Visuals that change with the script
AI imagery, B-roll, lower-thirds, and pull-quote cards swap as the narration moves topic to topic. No single stock loop pinned behind the whole track.
Three ratios per render
16:9 for YouTube, 1:1 for the LinkedIn feed, 9:16 for Reels, Shorts, and approved social channels, smart-reframed from one storyboard.
A music bed under the voice
The agent picks a licensed background track that sits below the narration without fighting it, matched to the pacing of how you read the script.
Pull a clip from the cut
Mark a strong 20 to 60 second passage of the voiceover and export it as a standalone clip, same visuals, same brand, vertical-ready for social.
Re-voice in another language
Regenerate the spoken track in any ElevenLabs-supported language, with captions and on-screen text re-rendered so one recorded voiceover ships to several markets.
Security and data handling
Talk to sales about security, access controls, and data handling for your team.
The rest of ngram
Voiceover to video is the front door. These run the rest of the pipeline.
Script Generation
Once your voiceover is transcribed, the agent tightens the narration into a publishable script: a hook on the first line, a clear body, a closing CTA the visuals can land on.
Learn moreAI Visuals
Scene-matched imagery generated line by line, so each beat of the narration gets its own picture instead of a single backdrop holding under the whole voiceover.
Learn moreCaptions
Burned-in branded captions on every render, aligned to the exact words and timing of your recorded voiceover, the value that carries a narrated video in a muted feed.
Learn moreAI Voiceover
No recording yet? Generate the narration from your script in a brand voice, then run it through the same line-matched pipeline as an uploaded voiceover.
Learn moreBrand Kit
Logo, fonts, colors, intro and outro applied to every scene, so a narrated explainer and a launch video read as the same brand to a viewer.
Learn moreTranslation
Translate the narration, regenerate the spoken track, and re-render captions, turning one English voiceover into localized video for each key market.
Learn moreUse cases
Where a recorded voiceover earns a video.
Narrated product demos without a shoot
Read the demo script into your phone or mic, drop the voiceover, and ngram matches each line to product imagery and callouts for a clean walkthrough.
See use caseLaunch narration into a branded video
Record the launch story once. ngram matches scenes to the script and ships a captioned launch video for the LinkedIn post, the changelog, and the landing page.
See use caseVoiceover scripts into explainers
Hand over the narration you wrote to explain the concept; ngram visualizes each line so the watcher sees the idea instead of just hearing it described.
See use caseVoiced outreach reps can actually send
A rep records a 40-second pitch as a voiceover; ngram turns it into a captioned, branded video that loops in the inbox without a player or a film crew.
See use caseFounder voiceovers into social posts
A founder narrates a take while walking; ngram matches visuals to the script and returns a captioned LinkedIn video that earns the feed's video boost.
See use caseSME narration into onboarding video
Recorded subject-matter narration becomes a structured onboarding video, with each step matched to a visual, section dividers, and captions for the LMS.
See use caseHelp scripts read aloud into how-tos
Narrate the steps of a help article and let ngram match each instruction to the screen it refers to, so customers watch the action instead of rereading the text.
See use caseRelease narration into changelog clips
Record a short voiceover for each shipped feature; ngram matches it to product visuals so every changelog entry ships with a watchable clip beside the release notes.
See use caseNarrated newsletters into embeddable video
Turn the voiceover read of your newsletter into a captioned branded video readers watch in the inbox instead of opening a separate podcast app.
See use caseOther converters
Coming from a different starting point? There's a converter for that.
Same transcribe-then-storyboard pipeline, different inputs. Voiceover to video shares the brand kit, security model, and render stack with the rest of the converter family.
The broader sibling. Any recording, podcast clip, webinar segment, or customer call, runs the same transcribe-and-storyboard pass into a captioned branded video.
Open converterSkip the recording. Paste the script you would have narrated and ngram generates the voiceover and matches a scene to every line in one pass.
Open converterAlready have the narration as text? Drop the transcript and ngram pairs it with a generated voiceover, then visualizes each line the same way.
Open converterTools that pair with this converter
Sharpen the voiceover. Edit the video.
Polishing the source voiceover
Clean the recording before the storyboard runs
Background Noise from Audio
Strip room tone and breath noise from a home-recorded voiceover so the transcript reads clean and the burned-in captions land on the right words.
Open toolAudio to Text
Transcribe the voiceover on its own first when you want to proof the wording, then drop the cleaned text back in as the script for the video.
Open toolAI Voice Generator
Re-record a line you flubbed without going back to the mic. Generate a matching brand voice for the fix and splice it into the narration.
Open toolAI Voice Dubber
Re-voice the narration into another language before you convert it, so the same script ships as a branded video to a market that speaks something else.
Open toolEditing the rendered video
Take the rendered voiceover video further
Video Editor
Open the rendered cut on a real timeline: trim a scene, nudge a caption, swap the visual under a line, then publish the result.
Open toolVideo Cutter
Trim by the narration, not the timecode. Pick the strongest 30-second passage of the voiceover and export it as a standalone short.
Open toolAdd Subtitles to Video
Burn or export .srt subtitles in any language for the narrated cut, for muted-autoplay feeds or viewers who watch with the sound off.
Open toolAdd Music to Video
Swap the bed under the voiceover. Pick a different mood, or duck a track of your own so it never rides over the spoken lines.
Open toolGenerating from scratch
If you haven't recorded a voiceover yet
Text to Speech Video
No recording? Type the script and ngram generates the voiceover and the matched visuals together, the same line-by-line pipeline downstream.
Open toolVideo Script Generator
Draft the narration before you record, so the voiceover you hand to the converter already has a hook, structure, and a closing CTA.
Open toolAI Avatar Video Generator
Put a presenter on screen with your narration so a voiceover video reads like a hosted segment instead of a disembodied voice over visuals.
Open toolText to Video
Skip recording and writing both. Hand ngram the talking points and let it script, narrate, and visualize, the same look as a converted voiceover.
Open toolBuilt for teams
Who reaches for voiceover to video in your company?
Product Marketing
Record the launch narration once and convert it into a captioned branded video for the announcement post, the changelog, and the landing page.
See workflowsContent Creators
Narrate the script you wrote and let ngram match visuals to every line, so a voiceover becomes a publishable video without an editing session.
See workflowsDeveloper Relations
Voice over an integration walkthrough or release note and ship a branded clip with the right product UI matched to each step.
See workflowsGrowth Marketing
Turn recorded voiceover hooks into paid-social creative, captioned and reframed for each placement from a single narration.
See workflowsSales Enablement
Convert a rep's recorded pitch or objection-handling script into a branded video reps can drop straight into a deal cycle.
See workflowsCustomer Success
Narrate an onboarding or QBR walkthrough and let ngram match each step to the screen, so customers watch instead of read.
See workflowsFounders
Record a take on the way to work, drop the voiceover, and ship a captioned LinkedIn video before the first standup of the day.
See workflowsAgencies
Run each client's recorded narration through one pipeline and return on-brand videos without staffing an editor per account.
See workflowsIntegrations
Triggers, not logos. Wire voiceover to video into the tools you already run.
Each integration kicks off a line-matched render the moment a new voiceover file lands. Start from one, or build your own with the REST API and webhooks.
whenA new voiceover recording is saved to your Drive or Dropbox folder
thenConvert it to a captioned video and post the social cut in #marketing
whenClaude or ChatGPT is handed a recorded narration track for a launch
thenMatch visuals to each line and return the share link to the branded video
whenYour self-hosted flow drops a finished voiceover WAV on S3
thenKick off a line-matched render from the self-hosted n8n workflow
whenA teammate exports a cleaned narration take from Descript or Audition
thenBuild the voiceover into a branded video and attach the link in HubSpot
whenYou hit 'Convert to video' on a voiceover file open in your browser
thenGet back a captioned video with a scene matched to each line in a new tab
whenA voiceover-to-video render finishes for a narrated explainer
thenPush the 16:9 and the 9:16 line-matched cut straight to your channel
whenA founder's recorded take finishes converting to video
thenSchedule the 1:1 captioned cut to the LinkedIn page on your cadence
How it compares
If you've been using something else to put a video behind a voiceover.
VEED and Kapwing give you a timeline to drop clips under a voiceover by hand. Synthesia builds around an avatar reading the script. ngram matches a scene to each line of your recorded narration, applies the brand, and renders the captioned video in one pass.
| Feature | ngram | VEED | Synthesia | Kapwing |
|---|---|---|---|---|
| Visual matched to the narration | A scene picked per line: AI art, B-roll, callouts, quote cards | Manual clip placement | Avatar reads the script | Manual clip placement |
| Transcription engine | AssemblyAI with timestamps and topic breaks | In-house transcription | In-house transcription | In-house transcription |
| Brand kit applied automatically | Logo, fonts, colors, intro and outro on every render | Template-level only | Template-level only | Template-level only |
| Multi-format export in one render | 16:9, 1:1, 9:16 from one storyboard | One ratio per export | One ratio per export | One ratio per export |
| Re-voice into another language | Translate the script, regenerate the voiceover, re-render captions | Separate flow | Per-language avatar | Separate flow |
| Max input file size | 500 MB per file | Tier-dependent | Tier-dependent | 1 GB on paid |
| API and webhooks | REST API, MCP, n8n, Zapier, Make, webhooks | Limited | API on enterprise | API on paid plans |
| Account data control | Delete your account to purge your data | Variable | Project-bound | Variable |
FAQ
Common questions about voiceover to video
Still curious?
Voiceover → Video
Ready to turn your voiceover into a video your audience will actually watch?
Paste the voiceover script, review the line-matched storyboard, and ship a captioned branded video for your next launch, demo, or campaign. Uploading a recorded narration track is coming soon.