Here are the steps to get the trial:
1. Visit the Vocaloid website and click on the "Download" tab.
2. Select the version of Vocaloid that you want to try (e.g., Vocaloid 4, Vocaloid 5).
3. Click on the "Trial Download" button.
4. Follow the on-screen instructions to install the Vocaloid trial.
The Vocaloid trial typically lasts for 30 days, during which you can use all the features of the software. After the trial period ends, you will need to purchase the full version of Vocaloid in order to continue using it.