> ## Documentation Index
> Fetch the complete documentation index at: https://doc.rapida.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Google Text-to-Speech

> Google Cloud Text-to-Speech provides natural-sounding voice synthesis powered by advanced neural networks.

## Getting Started

To integrate Google Cloud Text-to-Speech with your Rapida application for text-to-speech (TTS) capabilities, follow these steps:

## Supported Models

### Text-to-Speech Voices

Google Cloud provides neural voices with natural, expressive speech synthesis:

#### English Voices

| Voice Name      | Gender | Regional Accent | Description                   |
| --------------- | ------ | --------------- | ----------------------------- |
| en-US-Neural2-A | Female | US              | Natural US English female     |
| en-US-Neural2-C | Female | US              | Alternative US English female |
| en-US-Neural2-E | Male   | US              | Natural US English male       |
| en-GB-Neural2-A | Female | UK              | British English female        |
| en-GB-Neural2-B | Male   | UK              | British English male          |
| en-AU-Neural2-A | Female | Australian      | Australian English female     |
| en-AU-Neural2-B | Male   | Australian      | Australian English male       |
| en-IN-Neural2-A | Female | Indian          | Indian English female         |
| en-IN-Neural2-B | Male   | Indian          | Indian English male           |

### Supported Languages

Google Cloud Text-to-Speech supports 30+ languages including:

* English (US, UK, Australian, Indian, South African variants)
* Spanish, French, German, Italian, Dutch
* Mandarin, Cantonese, Japanese, Korean
* Hindi, Bengali, Tamil, Telugu, Marathi
* Portuguese, Russian, Arabic, Polish, Turkish
* Thai, Vietnamese, Filipino, and more

### Features

* **Neural Voices**: Advanced neural network-based voice synthesis
* **Multiple Accents**: Native speaker accents for various regions
* **Speaking Rate**: Adjust speech speed from 0.25x to 4.0x
* **Pitch Control**: Fine-tune voice pitch
* **Audio Formats**: Multiple audio formats and sample rates
* **SSML Support**: Full SSML markup support

## Prerequisites

* Have a Google Cloud account
* Create a new Google Cloud Project or use an existing one
* Enable the Text-to-Speech API
* Create a service account with Text-to-Speech permissions
* Download the service account key (JSON file)

# Setting Up Provider Credentials

<Steps>
  <Step title="Access the Integrations Page">
    <img src="https://mintcdn.com/rapidaai/iFtJHOhZE0HHFT_Q/images/integration/providers/providers-and-models.png?fit=max&auto=format&n=iFtJHOhZE0HHFT_Q&q=85&s=1aa112ebaf44541a92bcac925df62cf8" alt="Integrations Page" width="3600" height="2024" data-path="images/integration/providers/providers-and-models.png" />

    Navigate to the "Integration > Models" page to access TTS providers.
  </Step>

  <Step title="Select Google Speech Service">
    On the Integrations page, find the Google Speech Service provider card.

    Click the "Setup Credential" button for Google Speech Service (for TTS).
  </Step>

  <Step title="Create Provider Credential">
    A modal window will appear titled "Create provider credential". Follow these steps:

    1. Select "Google Speech Service" from the dropdown (if not already selected)
    2. Enter a Key Name: Assign a unique name to this provider key for easy identification
    3. Enter Project ID: Input your Google Cloud Project ID
    4. Enter Service Account Key: Paste the entire JSON content of your service account key
    5. Click "Configure" to save the credential
  </Step>

  <Step title="Verify Credential Setup">
    After setting up the credential, you can verify it's been added:

    1. The Google Speech Service provider card should now show "Connected"
    2. If you click on the provider, you'll see a "View provider credential" modal
    3. This modal displays the credential name, when it was last updated, and options to delete or close
  </Step>
</Steps>

Your Google Cloud Text-to-Speech provider credential is now set up for TTS integration.

## Integration Features

* **Natural Neural Voices**: High-quality neural voice synthesis
* **30+ Languages**: Comprehensive language support
* **Multiple Accents**: Native speaker accents for various regions
* **SSML Support**: Advanced markup for precise voice control
* **Real-time Streaming**: Stream audio as it's being synthesized
* **Batch Processing**: Process large volumes of text
* **Affordable**: Cost-effective pay-as-you-go pricing

For more information, visit the [Google Cloud Text-to-Speech documentation](https://cloud.google.com/text-to-speech/docs).