Curious if any vMix User has had issues with creating video media with alpha channel using the Newtek codec. The editing system being used is GV Edius 7/8 exporting with the Quicktime wrapper and the Newtek SpeedHQ (SHQ0-SHQ9) codecs. There is no AVI option when exporting SpeedHQ under Edius 7/8. The SpeedHQ *.mov files will not be accepted by vMix upon creating an Input. Having completed testing using each of the SpeedHQ codecs (SHQ0 – SHQ9) with no success. Operating Systems used Win7Pro, Win8.1Pro and Win10. Current release of Edius 7 & 8, with the latest version of vMix. The Newtek SpeedHQ files will play in VLC Player (V3.0.3), and it reports that the files are OK and with Alpha channel.

I’m concerned that there may be a conflict between the Newtek SpeedHQ codecs installed, as I have those provided by vMix, the Newtek NDI Tools, and the separate Newtek Codec Pack for Edius. I trust these are all on the current version and are interoperable between the various applications. There is no version information provided in the properties dialog by Newtek accompanying these SpeedHQ codecs.

Thanks Martin. I suspected QuickTime maybe the source of the problem, and your confirmation of same. I had read on other forums Users having a similar issue with SpeedHQ. I followed up on SteveSpaw’s post and BuffTitler, and the SpeedHQ codec does in fact work with Alpha, so long as the wrapper is *.AVI. and the DCT option is selected as ON. Interestingly, this SpeedHQ AVI with alpha will work in vMix, Edius, PremierPro, DaVinci and probably other applications. So this is good news.

Source: https://forums.vmix.com/...osts&t=10750&p=2

Addendum: The BluffTitler settings below:



Simply import the uncompressed video with alpha into BluffTitler, and export using the SpeedHQ 4:2:2:4 (DCT Alpha) codec. Works well with vMix, Edius, Adobe products, Windows Media Player & VLC Player (3.0.3). Hopefully the other software vendors will utilize the *.AVI wrapper and implement the codec choices correctly, instead of the QuickTime wrapper in their next updates.