How to Make a Product Explainer Video Without a Video Team

Description and use

Step‑by‑step process for creating a product explainer video without a video team: from high‑quality screen capture and synthetic voiceover to automated assembly with FFmpeg and Remotion.

Problem

Creating a professional product explainer video in-house without a dedicated video team.

Outcome

A reproducible, low‑cost workflow that produces a high‑quality product explainer video suitable for web delivery without a dedicated video team.

Workflow

• Capture high‑framerate screen recordings at 1080p 60fps with OBS Studio or Screen Studio, using Playwright/Puppeteer for automated UI walkthroughs.
• Generate synthetic voiceovers and subtitles with TTS APIs (ElevenLabs, OpenAI Audio, edge‑tts) at 44.1kHz WAV/MP3, export .srt file.
• Assemble audio and video via FFmpeg: merge screen recording, narration, burn‑in subtitles, encode with libx264 crf18 preset slow, trim to audio length.
• Add motion graphics programmatically with Remotion if needed, using React components for overlays and effects.
• Optimize final MP4 with ffmpeg crf23 for payload <15MB, host via HTML5 video tag or CDN for adaptive streaming.

Evidence

Capture clean, uncompressed UI interactions using dedicated tools or headless browsers.

Source

Generate high-fidelity audio (44.1kHz WAV or MP3) using tools like ElevenLabs API, OpenAI Audio API, or the open-source edge-tts library.

Source

Run the following command to merge audio, hardcode custom styled captions, and encode the video for web delivery: ffmpeg -i screen_raw.mp4 -i narration.mp3 -vf "subtitles=captions.srt:force_style='FontSize=22,PrimaryColour=&H00FFFFFF,Alignment=2'" -c:v libx264 -crf 18 -preset slow -c:a aac -b:a 192k -map 0:v:0 -map 1:a:0 -shortest final_explainer.mp4

Source