eSpeak can generate text-to-speech (TTS) audio files. This is useful for many purposes, such as creating audible CAPTCHA tests. 1. Log in as the **root** user. 2. Follow [our best practices guide](https://docs.vultr.com/how-to-update-a-vultr-cloud-server#how-to-update-debian--ubuntu) the update the server. 3. Install eSpeak. Create a test WAV file with the following parameters. * **Output file:** /tmp/espeak-talk.wav * **Content:** Speak the letters **y j w c t j** * **Word gap:** 60 * **Pitch:*......