OpenAI Text-to-Speech

Generate natural-sounding speech from text using OpenAI's text-to-speech models.

Supported Models

• tts-1: Standard quality, faster generation
• tts-1-hd: High quality, slower generation

Parameters

Parameter	Type	Required	Description
text	string	Yes	Text to convert to speech (max 4096 characters)
voice	string	Yes	Voice to use for speech generation
response_format	string	No	Audio format (default: mp3)
speed	number	No	Speech speed (0.25 to 4.0, default: 1.0)

Voice Options

• alloy - Neutral, balanced voice
• echo - Clear, expressive voice
• fable - Warm, engaging voice
• onyx - Deep, authoritative voice
• nova - Bright, energetic voice
• shimmer - Gentle, soothing voice

Response Format Options

• mp3 - MP3 audio format (default)
• opus - Opus audio format
• aac - AAC audio format
• flac - FLAC audio format
• wav - WAV audio format
• pcm - PCM audio format

Request Example

API Playground

GETPOSTPUTDELETEhttps://api.1min.ai/api/features

AI Model *TTS-1 (Standard)TTS-1-HD (High Quality)

Text *Hello, this is a sample text to speech conversion using OpenAI.

Voice *Alloy (Neutral)Echo (Clear)Fable (Warm)Onyx (Deep)Nova (Bright)Shimmer (Gentle)

Response Format MP3OpusAACFLACWAVPCM

Speed

Generated cURL Command:

curl -X POST "https://api.1min.ai/api/features" \
  -H "API-KEY: <your-api-key>" \
  -H "Content-Type: application/json" \
  -d '{
  "type": "TEXT_TO_SPEECH",
  "model": "tts-1",
  "conversationId": "TEXT_TO_SPEECH",
  "promptObject": {
    "text": "Hello, this is a sample text to speech conversion using OpenAI.",
    "voice": "alloy",
    "response_format": "mp3",
    "speed": 1
  }
}'

Response Format

The API returns an audio file in the specified format. The response will be a binary audio stream.

{}