I've tried googling the issue but to no avail. If you use a compatible MP4 file locally, you can Airplay the compressed video using Quicktime or iTunes, which should give you perfect playback. without taking a detour through the Mac or iOS device). I've disabled 'HDMI Control' on my TV, but to no avail. If you stream a video from compatible web sites, Airplay can actually tell the Apple TV to stream the video directly from the Internet (i.e. TV is a Sony Bravia KDL-46EX653 if that's relevant. I think I have done all I could to try to make it work. Sometimes, when I select that device, the sound comes from the laptop, but often it does not come from anywhere at all. As well as running the HDMI through a USB-C to HDMI dongle. I restarted the apple TV and my macbook pro. Actually, what I find weird is that the playback device is called 'Digital Output ()', with the ' ()' including nothing inside. Unlike Apple’s native AirPlay, which only allows you to connect with Apple TV, the JustStream app practically eliminates restrictions on the type of TV you may mirror Mac content to. I have tried all the different HDMI ports, and 2 different HDMI cables that I know work from other devices. The sound plays for about half a second then cuts out. EDIT: Spotify's player seems a bit more resilient, however it does also glitch, almost like something is continuously being pulled forward but Spotify won't let it, resulting in weird audio skipping and glitching. When I switch to the TV as the sound output, whatever media I have playing starts scrubbing forward, as in video timeline moves. Click the Learn how to play sound on TV button to download the free audio driver and start transmitting the sound from your Mac to TV. The content plays and sound comes out of the laptop speaker, don't worry, the issue isn't that simple. So, i plug the HDMI in the TV and the laptop.

Macbook pro apple tv mirroring no audio