British English

Jasper

Service Specialist

Warm, expressive voice for customer support and sales conversations

Open in Playground Talk to sales

144/500

About this voice

Compare Jasper with other English voices using the same script. Include the names and phrases your listeners will hear.

Compare English voices English text-to-speech guide

Native voice

British English

Region

United Kingdom

Gender

Masculine

Style

Conversational

Call Jasper from the API

Use this voice ID in a Sonic text-to-speech request. Replace the transcript with your own English script to generate new speech.

Text-to-speech API reference

Voice ID: 3faa81ae-d3d8-4ab1-9e44-e50e46d33c30

from cartesia import Cartesia

client = Cartesia(api_key="YOUR_API_KEY")

response = client.tts.generate(
    model_id="sonic-3.6",
    transcript="I can help you change the delivery address if your package hasn't shipped yet. Send me the new address, and I'll check whether we can update it.",
    voice="3faa81ae-d3d8-4ab1-9e44-e50e46d33c30",
    language="en",
    output_format={"container": "wav", "encoding": "pcm_f32le", "sample_rate": 44100},
)
response.write_to_file("jasper.wav")