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Learn how to customize voices and change speech rates using the pyttsx3 text-to-speech library in Python.
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How to Change Voice and Speech Rate in pyttsx3 for Python?

For developers working on text-to-speech (TTS) applications in Python, the pyttsx3 library is a powerful tool that provides extensive control over speech synthesis. In this guide, we'll discuss how to change the voice and speech rate using pyttsx3.

Setting Up pyttsx3

First, ensure you have pyttsx3 installed in your environment. If it’s not yet installed, you can add it using pip:

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Next, initiate an engine to use pyttsx3:

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Changing the Voice

pyttsx3 supports multiple voices. Here’s how you can list, choose, and set a different voice:

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To change the voice, set the id parameter to one of the available voice IDs:

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Changing the Speech Rate

The speech rate determines how fast or slow the speech synthesis is. You can get and set the speech rate as follows:

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You can experiment with different values to see what works best for your application. Generally, a slower speech rate makes the speech easier to understand, while a faster rate can make it sound more natural in some contexts.

Bringing It All Together

Here's a complete example that sets both the voice and the speech rate before saying a sample text:

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With these settings, you now have control over pyttsx3's voice and speech rate properties, allowing you to tailor the output to suit the needs of your application.

Conclusion

Customizing the voice and speech rate in pyttsx3 provides greater flexibility in creating more engaging and user-friendly TTS applications. Experiment with different settings to find the perfect combination for your specific requirements.