ElevenLabs Indonesian TTS API

Overview

The ElevenLabs Indonesian TTS API is a one-node serverless workflow that converts Bahasa Indonesia text into high-quality, natural-sounding speech audio. Powered by ElevenLabs' latest eleven_v3 model with the language code locked to id, this workflow is purpose-built for Indonesian-language voice generation targeting the world's fourth most populous country and one of Southeast Asia's fastest-growing digital markets.

Whether you are building a super-app voice feature, an e-commerce product narration system, or an edtech platform serving Indonesian students, this API delivers studio-grade Indonesian speech output as an MP3-compatible audio stream via a single API call.

Bahasa Indonesia is spoken by over 270 million people, and TTS quality in Indonesian has historically been a gap in the market. This workflow fills that gap with ElevenLabs' best-in-class multilingual voice AI, making it trivial to add lifelike Indonesian narration to any product.

How It Works

The workflow contains a single node:

ElevenLabs Text To Speech (eleven_v3) receives the Bahasa Indonesia text input and synthesizes it into speech. The language_code parameter is hardcoded to id, ensuring the model always renders the output in Indonesian regardless of input variations. The model used is eleven_v3, ElevenLabs' highest quality generation model with improved prosody, naturalness, and emotional expressiveness. The generated audio is passed to an Audio Output node and returned as the API response.

The API accepts one input parameter, text (a string of Indonesian text), and returns one output, audio (the synthesized audio file).

Customization Guide

While the language is locked to Indonesian (id), several parameters can be adjusted to tailor the output:

• •Voice: Change the Rachel default voice to any ElevenLabs voice that suits your brand or character. You can also supply a custom voice_id for cloned or custom voices.
• •Stability: Controls how consistent the voice sounds across sentences (default 0.5). Increase for more predictable narration, decrease for more expressive variation.
• •Similarity Boost: How closely the output matches the reference voice (default 0.75).
• •Speed: Control speech rate between 0.25x and 4x (default 1.0). Useful for IVR systems or accessibility use cases.
• •Style: Add expressiveness and emotional inflection (default 0, max 1).

Who It Is For

This workflow is ideal for:

• •Super-app and e-commerce platforms in the Gojek and Tokopedia ecosystem adding voice output to their product
• •Indonesian fintech and neobank apps needing lifelike TTS for transaction alerts and customer notifications
• •SEA edtech platforms delivering Indonesian-language lessons with natural narration
• •IVR and telecom providers that need reliable Bahasa Indonesia TTS for automated call flows
• •Content creators and media platforms generating Indonesian audio content at scale

Segmind is an authorized channel partner of ElevenLabs. Connect with our sales team to integrate the ElevenLabs API and models from 40 more providers including Google, Bytedance, Alibaba, OpenAI, Kling and more.