Frequently Asked Questions

Everything you need to know about CastWeave. Can't find what you're looking for? Learn more about us.

What is CastWeave?+
CastWeave is a dub-ready dialogue editor for video creators. It helps you import footage, detect speakers, map them to characters with assigned voices, rewrite dialogue lines, and export clean audio takes — all in one guided workflow.
How does speaker detection work?+
CastWeave uses AI-powered speaker diarization to automatically identify who speaks when in your footage. It detects the number of speakers, assigns labels (SPEAKER_01, SPEAKER_02, etc.), and counts how many lines each speaker has. You then map these to named characters in your cast.
What file formats does CastWeave support?+
You can import common video and audio formats including MP4, WAV, and other standard media files. CastWeave extracts the audio track for processing. Exports are available in WAV and MP3 formats for individual lines, full scenes, or complete projects.
Is CastWeave free to use?+
Yes, CastWeave offers a free plan with 3 projects, 10 minutes of transcription, and 50 line generations per month. No credit card is required to start. Paid Pro plans unlock higher limits with monthly ($19/month) and annual ($190/year) options.
How does CastWeave handle voice consent?+
CastWeave is designed for consent-first voice workflows. The platform is built for studios, creators, and localization teams that use voices they own, have licensed, or have explicit consent to use. CastWeave does not enable unauthorized voice cloning.
Can I edit individual lines without re-recording the whole scene?+
Yes, per-line control is a core feature. You can select any dialogue line, rewrite it, and regenerate just that line's audio using the character's assigned voice. Other lines in the scene remain unchanged, maintaining continuity.
What AI features does CastWeave use?+
CastWeave uses AI for three main tasks: speaker diarization (detecting who speaks when), transcription (converting speech to text), and line generation (creating new audio takes from edited dialogue). You maintain full control over creative decisions and final output.
How is my data stored and protected?+
Your data is stored on secure cloud infrastructure with encryption in transit (TLS/HTTPS) and encrypted storage. Project data is restricted to your account. When you delete a project, associated data is permanently removed within 30 days. See our Privacy Policy for full details.
Can I use CastWeave for video localization?+
Yes. CastWeave's workflow is well-suited for localization projects. You can transcribe original dialogue, rewrite lines in target languages, assign localized voices to characters, and export the dubbed audio. Each character maintains voice consistency across all their lines.
What happens when I reach my plan limits?+
When you reach usage limits for transcription, line generations, or voice previews, those specific features are temporarily restricted until your next billing period. Your existing projects, data, and exports remain fully accessible. You can upgrade your plan at any time for higher limits.
How do I cancel my subscription?+
You can cancel your subscription at any time through your account settings. Cancellation takes effect at the end of your current billing period — you'll continue to have full access until then. No partial refunds are provided, and your data is retained for 30 days after the period ends.
Does CastWeave work on mobile devices?+
CastWeave is a web-based application optimized for desktop browsers. While the site is accessible on mobile devices, the editing workflow is best experienced on a desktop or laptop with a larger screen.

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Frequently Asked Questions · CastWeave