Czech AI voiceover

The Czech voices, with samples

Each sample reads the same line so you can compare them fairly.

Selecting Czech, and what the director does with it

The Language field takes free text alongside its 32 suggestions, and Czech is one of the mapped entries, resolving to the cs-CZ locale that every automatic voice for the video will come from. The director then writes narration and on-screen text in Czech directly from your brief's facts, no matter what language the brief used. This is generation, not translation, so the grammar carries real cases and aspect rather than word-for-word renderings. Vocabulary you need preserved, the name of your loyalty programme say, goes into the brief verbatim and comes out the same way.

Who speaks what

Casting is style plus gender. The energetic duo Puck and Laomedeia is built for promos, product launches and social cuts. Charon and Erinome hold the instructional lane, and tutorials are locked to them in code; a how-to video cannot inherit the ad voice however the plan is phrased. Umbriel and Sulafat read warmly for cafés, salons and testimonials, while Iapetus and Aoede keep the corporate middle. When one scene needs a different speaker, its voice dialog re-casts just that scene and can search the entire live catalogue past the default eight.

The three timing controls and the automatic mix

Czech and English carry information at a similar rate, so scene stretching stays subtle, though the engine will always grow a scene to fit its clip rather than clip the voice. Per scene you get a delay in seconds before speech begins, a speed setting stepping between 0.85x and 1.25x, and the option to rewrite the line, which outperforms both. Under dynamic pace a long line finishes over the following cut instead of cramming. The music bed drops itself to 22 percent during speech and returns after, ramping briefly on each side, no keyframing required.

Feeding the voice text it cannot misread

Czech declines its numerals, so spell out any number whose form matters: dvě stě korun is exact where 200 Kč leaves the case to chance. There is no phonetic markup anywhere in the product; a foreign name is corrected by respelling it in the narration box until the read is right, and Czech's phonetic orthography makes that a one-step job most times. Sentence punctuation defines both intonation and where caption cues cut. The em dash is excluded from generated narration by prompt rule, and manual edits read better keeping it out, since the voice treats it as a hard brake.

Captions in this script

Czech diacritics survive every look because ě, š, č, ř, ž, ý, á, í and the ů with its kroužek all belong to the Latin extension bundled with each catalogue font. Captions are cut from the narration text, never transcribed, so the ř is never approximated. Word-level highlighting follows the clip's own measured timing, the spoken word bright, the queue dimmed. Czech words run compact, so the 48 character sentence wrap triggers rarely; when it does, the sentence splits into consecutive cues rather than shrinking the type.

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