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Fire TV has a new Audio and Video Diagnostics tool for testing 4K, HDR, & Dolby Vision/Atmos capabilities | AFTVnews
Studio Six Digital | AudioTools | iAudioInterface2 - We have added Dolby Atmos 9.1.6 audio test signals to our Apple TV Surround Generator app. This package is an in-app upgrade and available
![5.1 Surround Audio YouTube Playback Device Test - Not a speaker test (although can be used as one) - YouTube 5.1 Surround Audio YouTube Playback Device Test - Not a speaker test (although can be used as one) - YouTube](https://i.ytimg.com/vi/PPfklRH6prk/maxresdefault.jpg)