Text to Speech Options

Add voice narration to your lessons using Teacharium’s built-in text-to-speech.

There are three ways to add voice to a lesson. Each one suits a different use case — on-demand reading, automatic narration, or synchronized instruction sequences.

Configuring voice settings

Before adding voiceovers, set your default voice in Lesson Settings. Open the settings panel and choose a voice and speaking speed. A preview button lets you hear the voice before committing. This setting applies to all voiceovers in the lesson unless overridden on individual components.

Approach 1: On-demand voiceover on text

Any text component can have a read-aloud button attached to it. When a learner clicks the button, the text is read aloud using the lesson’s configured voice.

To enable this, select a text component and turn on Voiceover in the component settings. A speaker icon appears on the component during playback. Learners choose when to listen.

This is the lightest-touch option — it adds audio access without interrupting learners who prefer to read.

Approach 2: Voiceover component

The Voiceover component is a dedicated audio player that plays a text-to-speech clip. You write the script in the component settings, and the voice reads it back.

Two modes are available:

• Autoplay — The voiceover begins automatically when the step loads. Use this for guided narration where you want every learner to hear the introduction.
• Manual — A play button appears on the step and learners start the audio themselves.

You can combine the Voiceover component with other content on the same step so learners hear narration while viewing images, text, or questions.

Approach 3: Instruction sequences

An instruction sequence pairs a voiceover script with a visual component — typically a slide deck. As each line of the script plays, the visual advances in sync.

This creates a slideshow-style narrated experience:

1. Add an Instruction Sequence component and write your script — each line becomes one “slide” of narration.
2. Add a Slide Deck component (or another display component) and bind its current slide variable to the instruction sequence’s step variable.
3. As the narration advances through each line, the variable updates, and the slide deck shows the matching slide.

Instruction sequences work well for multi-step explanations where the visual should change as the narration progresses. The learner can pause, rewind, and replay individual lines.