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Choosing video and audio AI tools — start with voice rights
What goes wrong in this category is rights, not quality. Voices and faces belong to people, and using generated output commercially requires more checks than images do.
Voice and likeness Commercial use Real product list
The short answer
Two sets of rights overlap here: commercial use of the output, and the rights in the voice or face used. Miss the second and the result is not an unusable file — it is a dispute.
Korean quality also separates products sharply here. Naturalness of synthesis, subtitle accuracy and lip-sync in dubbing vary widely, so test on your own real script.
Candidates by use
| Use | What to look at | Real products |
|---|---|---|
| Voice synthesis and voiceover | Korean naturalness and voice rights | ElevenLabs · Murf · Supertone |
| Video generation | Output quality and commercial terms | Kling AI |
| Subtitles and transcription | Korean accuracy and speaker separation | Rev |
| Background music | How rights are handled | Mubert · Soundraw · Beatoven |
| Music production and mastering | Distribution terms | LANDR · Udio |
| Training video avatars | Scope of avatar usage rights | Colossyan |
Rights checklist
How to compare Korean quality
Pick one of your real scripts. Three to five hundred characters is enough, and it helps if it mixes numbers, English abbreviations and proper nouns — that is where products separate most.
Run the same script through each candidate and assess three things: pronunciation accuracy (numbers and English especially), naturalness of intonation, and pacing between sentences. The third shapes the listening impression most.
For subtitles and transcription, test on a real recording instead — not a quiet meeting room but your actual environment. Product differences show under noise.
Frequently asked questions
Can we make internal announcements in an employee’s voice?
You need their explicit consent, and it is safer to document the scope — purpose, duration, withdrawal terms. Settle too whether consent given while employed survives departure.
Can we use generated music on YouTube?
Check both the product licence and the platform policy. How copyright claims are handled differs by product, so for a channel of any size get written confirmation.
How do we compare video generation quality?
Pick three scenes you will actually produce and run the same prompt. Demo reels are made under optimal conditions and do not reflect real use.
How accurate do subtitles need to be?
Hard to put a number on, but the practical test is whether reviewing takes less time than writing them yourself. If review takes longer, the tool is wrong.
Product list
Narrow the candidates
The AI product directory filters video and audio products by pricing type and Korean support.