Instructions on creating voiceovers for lecture slides.

Knowledge transmission isn't just about the slide content; it also includes the voiceover accompanying the presentation. A clear, natural, and engaging voice can make a lecture much more lively, easy to understand, and captivating. You can create a script for your lecture slides, then add the voiceover using Google Studio or any other text-to-speech tool you commonly use. Below is a guide on how to create a voiceover for your lecture slides.

How to create voiceovers for lecture slides

Step 1:

First, access ChatGPT , then click the plus sign and select "Upload lecture file" . Next, enter the script command for this lecture file.

Viết kịch bản lồng tiếng tóm tắt nội dung bài giảng [môn] [lớp]. Độ dài [phút].

Step 2:

Next, you will get a script built from the lecture slides that we uploaded to ChatGPT, as shown below. We will copy the entire content to use.

Step 3:

Access the Google AI Studio website and then select the text-to-speech option by clicking on Speech and Music.

1. Access Google AI Studio

Then you click on the Gemini 3.1 Flash TTS Preview tool to use it.

Step 4:

In the new interface, we click on the text "Turn text into natural-sounding speech…" to convert text into speech.

Teachers would then enter the context for this content in the Scene section , fill in the context in the line below, and then paste the entire script from ChatGPT into it .

Tap on the voice to select and change some voice settings.

Next to it, you can adjust your voice as shown below. Then press Run to create speech from text.

Step 5:

Then you'll have the audio file as shown in the image. Press play to listen first, then press the download icon to download it .