English · English
An AI voice agent that speaks English.
English is the one language every Crackle agent listens for, whatever language it speaks, so a caller who drops into English is still understood. An English agent has voices from all three engines to choose from.
What a caller hears.
A greeting as the agent writes it, in Latin script, before the voice speaks it.
Hi! How can I help you today?
Hi! How can I help you today?Voices that speak it.
Choose the engine, then the voice; listen to a sample before you pick.
- Cartesia Sonic 3.6. Speaks every language on the list, with speed and tone controls.
- Sarvam Bulbul v4. Voices recorded in English, in many speaking styles.
- Rumik Mulberry 1.5. A voice styled from a one-sentence description.
Engines that hear it.
What turns the caller’s speech into text for the agent to read.
- GPT Transcribe. From OpenAI, in every language.
- Sarvam Saaras v4. Built for Indian languages.
Good to know about English.
- An English agent with a Cartesia Sonic voice can hold a single call in Tamil or any other language on the list, without changing the agent.
- Pace, volume and tone are set per agent, and a written laugh or sigh is acted out on voices that can perform one.
- The same agent can sit behind a talk button on your website and a call screen in your app.
Start a call in English.
Save the agent in English in the studio, or keep it as it is and hold one call in English by sending its code when the call starts.
One call in English
curl -X POST "https://goblins-call-api.onrender.com/v1/calls" \
-H "Authorization: Bearer $CRACKLE_API_KEY" \
-H "Content-Type: application/json" \
-d '{ "agentId": "ua_3f9a1c2b", "language": "en" }'Every voice engine speaks English, so any agent can hold a call in it.
Questions.
Can a English caller use English words?
Yes. Every agent listens for English as well as its own language, so a sentence that mixes the two is understood.
Can one agent take calls in English and in other languages?
Yes, in two ways. Save the agent in English and every call starts in it. Or keep the agent as it is and hold one call in English by sending language: "en" when you start it. Every voice engine speaks English, so any agent can hold a call in it.
What does a call in English cost?
The same as in any other language: $0.07 a minute, whichever voice and model, billed by the second.
Other languages.
Give your agent a voice in English.
Build one in the studio and talk to it in your browser. Sign-up credit is there for your first test calls.