Indonesian text-to-speech API

TTS API for real-time Indonesian speech generation in voice agents, IVR, and narration. With voice cloning, character-level timestamps, and language mixing between Indonesian and 60+ supported languages.

$0.70/hour of generated audio

Looking for Indonesian STT API?
Try Soniox Speech-to-Text

Trusted by teams building global voice products

Livekit
Krisp
Pipecat
Summary AI
Perplexity
Samsung
Wispr Flow
LG
Agora
Retell AI
Fireflies.ai
Skit.ai
Kindroid
Deliver Health
Truecaller
Journalia
Mobius
TranscribeMe
Vapi
Zomato
SLNG
Japan AI
Boost.ai
Convin
Genspark
HappyRobot
Uniscribe
Jamie.ai
InteractCX
The Plato
MobilApp
Onvego
Wonderful.ai
Manifone
Tana
Transync AI
SotaTek

Indonesian speech synthesis for production voice apps

Indonesian is spoken by more than 270 million people in Indonesia and around the world. If your voice agent, IVR, or narration product speaks to them, text-to-speech has to get the details right: phone numbers and codes read exactly as written, names pronounced the way Indonesian speakers expect, and text that mixes Indonesian with English spoken in one voice.

Soniox TTS generates Indonesian speech over a real-time WebSocket, starting audio from the first few words, or with a single REST request, through one multilingual API built for 60+ languages. Every voice speaks Indonesian, you can clone your own voice, mix languages in one sentence, and get character-level timestamps.

Exceptional quality in Indonesian

Hear the same voice deliver natural, expressive speech in Indonesian and across 60+ languages with consistent quality, identity, and pronunciation.

Hallucination-free Indonesian speech generation

The Indonesian text you send is exactly what gets spoken. No invented words, dropped content, or unexpected substitutions.

Input text

Janji temu Anda dikonfirmasi pada 3 Juni pukul 09.45.

Spoken

Janji temu Anda dikonfirmasi pada 3 Juni pukul 09.45.

Alphanumerics spoken correctly in Indonesian

Email addresses, phone numbers, addresses, IDs, and codes spoken clearly and precisely in Indonesian.

Phone number
+1 (415) 555-0132
Spoken

plussatuempatsatulimalimalimalimanolsatutigadua

Names pronounced naturally in Indonesian

Handle person names, place names, brand names, and borrowed words with the pronunciation Indonesian speakers expect.

English name
Beyoncé
Spoken

bee · YON · say

Streaming Indonesian speech before the sentence ends

Start generating Indonesian speech from the first few words, before the full sentence is available, for low-latency voice agents and live systems.

Incoming textStreaming

Tentu, saya bisa membantu Anda mengubah reservasi. Tanggal berapa yang lebih cocok?

Generated speechSpeaking

Precise timing for every character

Character-level timestamps let applications synchronize Indonesian text and audio, stop cleanly during interruptions, and continue from the correct point.

Agent
Reservasi Anda mencakup sarapan, late checkout, dan transfer—
User
Ngomong-ngomong, bisakah saya mengubah tanggalnya?
Agent
Tentu. Tanggal berapa yang lebih cocok?
Character timestamps
i5.90s
h5.95s
c6.05s
o6.10s
c6.15s
o6.20s
k6.25s
?6.30s

Seamless language switching with Indonesian mid-sentence

Speak mixed-language text naturally in a single utterance, switching between Indonesian and other languages with the right flow and pronunciation.

Estimate your Indonesian text-to-speech API cost

Set your monthly generated speech volume to estimate your Soniox API cost for text-to-speech.

Pricing calculator

Indonesian text-to-speech API pricing

Sonioxvs

1,000 hours of speech / month

1025501002505001k2.5k5k10k100k

Pricing assumptions

Based on public pay-as-you-go pricing. Enterprise discounts and committed-use contracts may differ. Some providers charge separately for certain features. The calculator uses the public price for the provider configuration that most closely matches Soniox.

Speech infrastructure for massive scale

Soniox Text-to-Speech API performance and reliability

Build on one API and deploy in your region

Use the same models and API everywhere, with in-region processing to meet latency, data residency, and regulatory requirements.

Available: US, EU, Japan, India
Coming soon: Korea, Australia, Canada, Saudi Arabia, UK, Brazil

View data residency docs
Soniox Text-to-Speech API performance and reliability

Run mission-critical systems with confidence

  • 99.9% uptime
    Production-hardened infrastructure with monitoring and redundancy.
  • low-latency streaming
    Process speech in real time with low latency for responsive voice applications.
  • Priority support
    Severity-based incident response with direct access to the Soniox team.
Onvego uses Soniox Text-to-Speech API for multilingual voice experiences

"Before Soniox, our international users always had a noticeably different experience. Now accuracy and responsiveness match across all regions…it feels like one system instead of five."

Alon Yair CTO of Onvego

Privacy and compliance, built right in

Never stored, never saved.

Audio stays in memory, everything is processed in real-time.

Built for privacy-critical use cases.

Adhering to leading global security, privacy, and compliance standards.

Trusted where privacy matters most.

Used in industries where speech is sensitive, from healthcare to enterprise.

Soniox is Soc 2 Type 2 compliant
Soniox is ISO 27001:2022 compliant
Soniox is HIPAA compliant
Soniox is GDPR compliant
SOC 2 Type 2 · ISO/IEC 27001:2022 · HIPAA · GDPR

Frequently asked questions

Does Soniox support text-to-speech for Indonesian?
Yes. Generate Indonesian speech over the real-time WebSocket API, which streams audio as text arrives, or with a single REST request. Every Soniox voice speaks Indonesian.
How natural does Soniox sound in Indonesian?
Listen for yourself: generate Indonesian speech in the demo on this page, or compare Soniox with other providers on the same text in the live TTS comparison.
How much does the Indonesian text-to-speech API cost?
$0.70 per hour of generated audio. Pricing is usage-based and the same for every language.
Which TTS model does Soniox use for Indonesian?
tts-rt-v2, one model for all 60+ supported languages. See TTS models.
Which SDKs can I use?
Can I clone a voice for Indonesian?
Yes. Soniox Voice Cloning creates a voice from a short reference clip that you use like any built-in voice (docs). A cloned voice works across all 60+ languages and keeps the same identity when switching languages.
How does Soniox TTS handle alphanumerics in Indonesian?
Soniox TTS reads phone numbers, email addresses, IDs, PINs, and codes exactly as written in Indonesian, without scrambled digits or dropped characters.
Can Soniox TTS handle mixed-language text with Indonesian?
Yes. Soniox TTS switches languages mid-sentence, speaking mixed Indonesian text with the right accent and flow for each segment.
How does Soniox TTS pronounce names and foreign words in Indonesian?
Soniox TTS pronounces person names, place names, brand names, and borrowed words the way Indonesian speakers expect, even when they come from a different language.
Is Soniox TTS fast enough for real-time Indonesian voice agents?
Yes. Streaming generation starts Indonesian audio before the full sentence is available, and character-level timestamps let your agent stop cleanly when the user interrupts.
Where is Indonesian speech data processed, and is it used for training?
In the region you choose: US, EU, Japan, India. Content stays in that region for processing and storage, and content sent to the API is never used to train Soniox models. See data residency.
Is Soniox TTS ready for production Indonesian workloads?
Yes. Soniox TTS runs on production-hardened infrastructure with 99.9% uptime, low-latency streaming, and priority support with severity-based incident response.
How do I get started?
Create an API key in the Soniox Console and follow the text-to-speech quickstart. For volume pricing or enterprise deployment, contact Soniox.

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