Im posting this here because I think Yeahmans program can be used to add potentially flawless commentary over recordings. Good for the youtuber Basically on Kit Kat on the X9 , if a user can introduce audio into the box , whilst a hdmi in resource is recording, that extra audio will be dubbed over , the hdmi in record. I added commentary on my hdmi in records, realtime, by using the teamspeak apps and configuration, Create a windows teamspeak server, install a teamspeak client on the x9, install a teamspeak client on an other device (this device will be used to speak the audio) , and you will find once your set up , audio you speak from the audio source teamspeak client, will be voiced on your x9. But if you want to game and add commentary , your going to have to use a hdmi splitter, and then game on the split hdmi signal prior to the feed in to the zidoo x9 Hdmi in. The zidoo x9 hdmi out will include , hdmi in + teamspeak audio. You will also have to use permutations of headphones and mikes to reduce echo. Im not going to get into it all , now. If you want to try the setup, you will see the challenges as they pop up. Anyway Yeahman, it would be a great way to expand your app, add commentary and cut out all the above. Hi @Yeahman45 1) I know usb audio in , is not fully supported on kit kat. But their are proprietary libraries out their to enable usb audio in. Thats why i've being asking zidoo for android 5 for some time now. So if you could deliver usb audio in you are a whisker away from giving us the ability to record commentary on the device. 2) As a work around would you be able to give us a slider control on the hdmi in audio source. The slider control would not affect the audio of the kit kat android system. This way using teamspeak we can turn down the audio of the hdmi in so our teamspeak overdub is clearly heard. 3) If we could get Zidoo to upgrade to Android 5, and get proper audio in usb support, then this whole process maybe even easier. Proper high quality audio commentary is very close I feel.