Fast Text to Speech — Vietnamese & English Voice Generator

The fastest, cheapest way to turn text into speech at scale. Send text, get an audio file back in a fraction of a second — ideal when you need thousands of clips instead of one perfect one.

Good for: bulk voiceovers, notifications and alerts, IVR and phone menus, accessibility read-aloud, quick previews before a final studio render, high-volume automation.

Quick start

{
  "text": "Xin chào, đây là giọng đọc tự động.",
  "voice": "vi_VN-vais1000-medium",
  "format": "mp3"
}

What you get

• Vietnamese and English (US) voices
• Many times faster than real time — a one-minute script renders in a couple of seconds
• Lowest cost per clip of all the voice Actors in this collection
• Long text supported — split and joined automatically
• MP3, WAV or Opus output
• Warm mode for instant repeat requests

Input

Field	Default	What it does
text	required	The text you want spoken
voice	vi_VN-vais1000-medium	Vietnamese or one of two English voices
speed	1.0	0.5 = slower, 1.5 = faster
format	wav	wav, mp3 or opus

Output

One dataset row per run with the audio file URL, duration and processing time.

Pricing

No rental fee — you only pay Apify compute, which is tiny for this Actor.

Notes

This voice is clear and extremely fast, but flatter than the expressive Actors. If you need emotional, human-like delivery, use the Vietnamese Text to Speech (voice cloning) or the AI Voice Cloning Actor instead.

For AI agents (MCP-ready)

This actor is built to be called by AI agents. It works out of the box with the Apify MCP Server — add it to Claude Desktop, Cursor or any MCP client: the agent can produce fast Vietnamese or English voiceovers on its own.

{
  "mcpServers": {
    "piper-tts": {
      "url": "https://mcp.apify.com/?actors=andrew_babo/piper-tts",
      "headers": { "Authorization": "Bearer <YOUR_APIFY_TOKEN>" }
    }
  }
}

Agent skill (paste into your agent's instructions)

Use the "piper-tts" tool for the fastest, cheapest text-to-speech in
Vietnamese or US English. Pick it for bulk jobs, IVR prompts and drafts
where speed and cost matter more than expressiveness. For higher-quality
Vietnamese use "vieneu-tts"; for more languages use "kokoro-tts".

HOW TO CALL
- { "text": "...", "voice": "vi_VN-vais1000-medium", "format": "mp3" }
- Voices: vi_VN-vais1000-medium (Vietnamese), en_US-lessac-medium,
  en_US-amy-medium.
- "speed" 1.0 is normal; long text is chunked automatically.

OUTPUT CONTRACT
- One row per run: audio_url, duration, voice, processing time.
- Return the audio_url. errorCode / noResults means the text was empty —
  ask for the script instead of pretending audio was made.