Cartesia Sonic 3.6 Speech Generator

Use cases

• Voice a product demo, explainer, or launch video script with a stock voice.
• Read an ad or podcast segment in your Organization's saved spokesperson voice.
• Produce the same script in several languages for regional campaigns.
• Audition voices and pacing before booking a studio session.

Input tips

• Keep the script within 10,000 characters; split longer scripts into sections.
• Choose a stock voice, or pick a custom voice saved by your Organization from the voice picker.
• Set language to the language the script is written in.
• Adjust speed between 0.6 and 1.5 and volume between 0.5 and 2 only when the default read is too fast, slow, quiet, or loud.
• Keep MP3 for sharing and review; choose WAV when an editor or audio tool needs uncompressed audio.
• Spell out numbers, acronyms, and unusual names the way they should be spoken.

Expected output

Caveats

• Cost is estimated from the length of the script, because exact usage is not reported for each request.
• Listen for pronunciation, emphasis, and pacing before using the audio in published work.
• Custom voices are private to the Organization that saved them.
• Only use custom voices for purposes the speaker has approved.