What is Thai speech to text and how does it work?

Speech to text (also called automatic speech recognition, or ASR) converts spoken Thai audio into written text. Deepgram processes the audio signal, detects speech in real time, and returns structured transcript data through an API. Developers use it for applications like voice agents, call analytics, captioning, and searchable media.

Does Deepgram support Thai speech to text?

Yes. Deepgram supports automatic speech recognition (ASR) for Thai audio. You can transcribe real-time or prerecorded audio by setting `language=th` in your API request.

Which Deepgram models support Thai speech to text?

Deepgram supports Thai in the Nova model family. Model availability may vary by language, so check the Models & Languages page for the latest support details.

Can Deepgram transcribe Thai in real time?

Yes. Deepgram provides low-latency streaming transcription for Thai, suitable for live voice agents, call analytics, captioning, and other real-time applications.

Does Deepgram support automatic language detection for Thai?

Deepgram offers automatic language detection for many languages. You can enable it with `detect_language=true`. See the Language Detection documentation for the full list of supported languages.

Can Deepgram handle audio with multiple languages or code-switching?

Yes. Deepgram supports multilingual transcription and code-switching when using Nova's multilingual models. Set `language=multi` to enable it. See the Models & Languages page for supported languages.

What features are supported for Thai transcripts?

Deepgram supports timestamps, punctuation, diarization, numeral formatting, filler-word detection, redaction, and more — all through the API.

How accurate is Deepgram for Thai speech to text?

Accuracy depends on model choice, audio quality, and domain. Nova models deliver state-of-the-art accuracy, and you can improve results further using Keyterm Prompting or Custom Models.

How do I get started with Deepgram's Thai Speech-to-Text API?

Sign up for a free Deepgram account to access your API key. You can test Thai transcription instantly in the Playground , or call the API directly by sending audio to `/v1/listen` with `language=th`. Starter apps and code examples are available on GitHub.

Thai Speech to Text API | Fast & Accurate Transcription

Thai Speech to Text

Convert Thai speech to text with high accuracy, low latency, and enterprise-grade scalability. Deepgram delivers real-time and batch transcription through a developer-first speech-to-text API.

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Fast and accurate Thai speech recognition for real-world audio

Get real-time Thai speech-to-text in under 300 ms while maintaining high accuracy in noisy, accented, or overlapping conversations.

Thai Language Overview

Speakers: Over 70 million native speakers

Regions: Thailand (primary), Midway Islands, Singapore, United Arab Emirates, United States

Dialects: Central Thai (Standard Thai), Northern Thai (Kham Mueang), Southern Thai, Northeastern Thai (Isan)

Writing system: Syllabic alphabet with 44 consonants and 15 vowel graphemes

Language family: Tai language family (Tai-Kadai)

Thai is widely used across education, media broadcasting, government administration, business, customer service, healthcare, and legal services throughout Thailand, making it a key language for call analytics, customer support AI, media captioning, multilingual voice agents, and medical documentation.