Which voices can I try for Japanese text to speech?

The recorded examples on this page use Naoki and Ayumi. Select an example to hear its script, then replace the text to test that voice with your own words. You can explore more voices in Cartesia Playground .

What is Japanese text to speech?

Japanese text to speech converts a written script into spoken audio. You can use it for narration, accessibility, product interfaces, and the spoken responses of a voice agent. Speech generation does not translate the script or decide what an agent should say.

How do I choose a text-to-speech API for Japanese voice agents?

Compare pronunciation, response time, streaming support, and output formats using the same scripts and playback setup. Include interruptions, short replies, and longer passages from your actual workflow. Have fluent Japanese speakers review the voices before choosing one.

How do I build a voice agent that speaks Japanese?

Combine speech recognition, conversation logic, and text to speech, or use Managed Agents to bring those parts together. Choose a voice, connect the tools your workflow needs, and test real conversations with fluent speakers. Define when the agent should ask for clarification or hand the conversation to a person.

What affects latency for Japanese text to speech?

Time to first audio depends on the model, request, network connection, and client playback. A voice agent also includes speech recognition and response-generation time. Measure the complete conversation in your deployment; measure time to first audio separately from the time a caller waits for an answer.

How should I handle numbers, dates, and addresses in Japanese?

Test the formats your users will hear, including local dates, prices, phone numbers, and addresses. Write ambiguous values in the form you want spoken and review the generated audio. Names, abbreviations, and regional conventions deserve a separate pronunciation check.

How do I integrate Japanese speech into my application?

Send your script, model, language code, voice ID, and output settings to the speech API from your server. Keep API credentials on your server. Start with the text-to-speech API , then add playback, cancellation, and error handling in your application.

What audio format should I use for Japanese speech?

Sonic offers output settings for browser players and telephony. Choose a container, encoding, and sample rate that your player accepts. The text-to-speech API reference lists the supported combinations. Match these settings to your phone provider when generating call audio.

Can I use Japanese speech in IVR and phone systems?

You can connect generated speech to a telephony application. Configure the output to match your provider's audio requirements and test it over real calls. Your application still controls call routing, caller verification, interruptions, and transfers to a person.

What should I evaluate before an enterprise deployment?

Test Japanese pronunciation, concurrent traffic, failure handling, and your target response times. Review data handling, deployment options, and contractual requirements with your team and Cartesia. Validate the complete integration before expanding from a pilot to production.

Can I use Japanese text to speech for narration?

Yes. Use Sonic to read Japanese scripts for product tutorials, spoken articles, and other narration. Preview a short passage first to check pacing and pronunciation. For longer recordings, continue in Cartesia Playground or generate audio through the API.

How can I try Japanese text to speech?

Play a recorded example on this page, or edit the script to generate new Japanese speech with Sonic. The web demo accepts up to 500 characters. For longer scripts and downloads, open Cartesia Playground.

Which Japanese accents can I hear here?

This page includes examples labelled Japanese. Listen to the individual recordings to choose a voice for your audience. The labels describe these recordings, not a guarantee that every regional accent is available.

Can I use my own Japanese text?

Yes. Select a voice and replace the sample script with your own text. The demo generates new audio for edited scripts. Changing to another example replaces your edits with that example's script.

Can I stream Japanese speech through the API?

Yes. Sonic supports streaming speech generation. Set the language code and voice ID in your request. Streaming lets your application begin playback as audio arrives. Check the API reference for request and output settings.

Can I use a cloned voice for Japanese speech?

Cartesia offers voice cloning. Use a recording you have permission to clone, then test pronunciation and speaker similarity in Japanese before using the voice in production. Results depend on the recording and selected model.

Does this page translate text into Japanese?

No. Sonic generates speech from the text you supply. If your source material is in another language, translate and review it in Japanese first. For a multilingual project, see our localization workflow .

Native Japanese Text to Speech

Sonic's Japanese text to speech delivers natural rhythm, native prosody, and emotional expression that calibrates to the conversation. Build voice agents that earn trust from the first word.

Hear Japanese in context

Listen to Japanese examples for customer support, narration, and travel.

Customer support

Ayumija-JP

サイズ交換が可能か確認いたしますので、ご希望のサイズをお知らせください。在庫を確認したうえで、お手元の商品の返送方法をご案内します。

Narration

Naokija-JP

雨がやむと、美咲は庭に面した窓を開けました。葉にはまだしずくが光っていて、隣の家から焼きたてのパンの香りが漂ってきました。

Travel

Ayumija-JP

博物館へは、広場の噴水を通り過ぎて、本屋の角を左に曲がってください。公園の向かい側に正面入口があり、チケットは中の受付で購入できます。

What to listen for in Japanese speech

The Japanese gallery contrasts a story about Pip with a personal reflection and a software offer. Test the level of formality your application needs using your own Japanese script. Have a fluent reviewer check names and the wording of requests.

Try your own script

Generate Japanese speech in seconds

Try a script here, then continue in Playground or connect your application.

1. Choose a voice

Listen to the recorded Japanese examples and select a voice before editing. Choosing another example replaces the script.

2. Write your Japanese script

Replace the sample text, then press Play. Include the names and phrases your audience will hear, and check pronunciation before creating a longer recording.

3. Download or integrate

Open Playground for longer scripts and downloads, or use the API to generate speech in your application.

Bring Japanese speech into your product

Generate Japanese audio from your application with the Sonic text-to-speech API. Send a script and voice ID, then stream the response to your player. Choose audio settings that match your web app or phone system.

Read the text-to-speech API docs Open Playground

FAQs

Explore more text-to-speech languages

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