PlayAI

The PlayAI voice implementation in Mastra provides text-to-speech capabilities using PlayAI's API.

Usage Example

import { PlayAIVoice } from "@mastra/voice-playai";

// Initialize with default configuration (uses PLAYAI_API_KEY environment variable and PLAYAI_USER_ID environment variable)
const voice = new PlayAIVoice();

// Initialize with default configuration
const voice = new PlayAIVoice({
  speechModel: {
    name: "PlayDialog",
    apiKey: process.env.PLAYAI_API_KEY,
    userId: process.env.PLAYAI_USER_ID,
  },
  speaker: "Angelo", // Default voice
});

// Convert text to speech with a specific voice
const audioStream = await voice.speak("Hello, world!", {
  speaker:
    "s3://voice-cloning-zero-shot/b27bc13e-996f-4841-b584-4d35801aea98/original/manifest.json", // Dexter voice
});

Constructor Parameters

speechModel?:

PlayAIConfig

= { name: 'PlayDialog' }

Configuration for text-to-speech functionality

speaker?:

string

= First available voice ID

Default voice ID to use for speech synthesis

PlayAIConfig

name?:

'PlayDialog' | 'Play3.0-mini'

= 'PlayDialog'

The PlayAI model to use

apiKey?:

string

PlayAI API key. Falls back to PLAYAI_API_KEY environment variable

userId?:

string

PlayAI user ID. Falls back to PLAYAI_USER_ID environment variable

Methods

speak()

Converts text to speech using the configured speech model and voice.

input:

string | NodeJS.ReadableStream

Text to convert to speech. If a stream is provided, it will be converted to text first.

options.speaker?:

string

= Constructor's speaker value

Override the default speaker for this request

Returns: Promise<NodeJS.ReadableStream>.

getSpeakers()

Returns an array of available voice options, where each node contains:

name:

string

Name of the voice

accent:

string

Accent of the voice (e.g., 'US', 'British', 'Australian')

gender:

'M' | 'F'

Gender of the voice

age:

'Young' | 'Middle' | 'Old'

Age category of the voice

style:

'Conversational' | 'Narrative'

Speaking style of the voice

voiceId:

string

Unique identifier for the voice

listen()

This method is not supported by PlayAI and will throw an error. PlayAI does not provide speech-to-text functionality.

Notes

• PlayAI requires both an API key and a user ID for authentication
• The service offers two models: 'PlayDialog' and 'Play3.0-mini'
• Each voice has a unique S3 manifest ID that must be used when making API calls