Update 4/4/16: As of Infuse 4.1, all audio issues have been resolved. Infuse now supports Dolby AC3/E-AC3/TrueHD and DTS/DTS-HD MA. More info on the available audio options can be found here.
Update 4/4: 4.1 is now live! https://firecore.com/blog/14683
Update 3/30: 4.1 has been submitted to Apple.
Update 3/17: We're working to put the finishing touches on 4.1, and hope to submit it to Apple soon.
Update 3/4: We are on track to include a number of big audio related improvements in the upcoming 4.1 update. More news to come soon!
Update 2/22: It looks like we have a good group of people ready to test 4.1. Thanks to all those who volunteered!
Update 2/20: We're looking for a few people (preferably those with 7.1 surround systems and test material) to provide feedback for the upcoming 4.1 update. If you're interested, please shoot me a PM with a few details about your AV setup. Thanks!
Update 2/19: We're in the process of adding a number of improvements that should resolve the vast majority of issues that have been reported. We're planning to have these improvements available in the next update (4.1) which shouldn't be too far off. Thanks for your patience.
Update 2/17: We're working on a few leads that look promising - more news to come soon.
Update 2/5: Still in progress...
Update 1/12: We're still investigating this issue, and are working directly with DTS on a solution. Most indicators point to chipset differences between various receiver models as a reason why some receivers work, while others do not. Since the Apple TV offers limited control over what is sent over HDMI, we're going to need to get creative to solve this. I'll post more info as it becomes available.
Update 12/12: Our AVR-X3200W arrived, and we are seeing the same exact issue. No combination of settings seem to allow passthrough to work. We're looking into this to see what options we have. We've also have a Yamaha RX-A1050 and Marantz SR5010 on the way to see if it's somehow related to the newer 2.0a HDMI spec, or if it's mainly specific to Denon models. We're going to do everything we can to get this working, so stay tuned for updates.
Update 12/9: We've got a Denon AVR-X3200W on the way - we'll see what we can do.
We're looking in a few reports where static noise is heard instead of surround sound. While we've not yet been able to replicate the issue here, it does seem to be related to specific receiver models. If you're getting static instead of surround sound try the following first - if the issue persists, please post your receiver brand/model as well as the audio track type (swipe down while a video is playing and slide to 'Audio' to see the specs) so we can try and narrow things down. Dolby/DTS over HDMI option is enabled in Infuse Disable Reduce Loud Sounds in Settings > Audio & Video menu (this is key!) Set Audio Mode is set to 16bit in Settings > Audio & Video menu Use a different HDMI cable (just for fun) Also, if one of the tips above helped surround sound start working you can let us know that too. Thanks!