Unfortunately, the current state of HTML5 audio is quite fractured. Chrome, Safari, Opera and Internet Explorer support .mp3 and ACC, while Firefox Linux and Mac supports .ogg and .wav files. Luckily, the audio tag supports multiple sources for one element. Adding a single audio in Aquafadas InDesign Authoring creates an audio group to which other formats may be added. To add additional audio formats, select your audio and click Add Audio Source in the Resource Library, or select your audio and add your source in the Element inspector.
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