Free Canva users can store up to 5GB of uploads. Canva is a design tool that allows you to make stunning slideshows in seconds. Just click the upload tab in the side panel, drag or manually upload your audio file, and add it to your design. Set the width and height in a way the player hides on the web page. Getting started with Canva. How does this sound? To add sound to a canvas-based animation or game, use the HTML5