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CasparCG / server

CasparCG Server is a Windows and Linux software used to play out professional graphics, audio and video to multiple outputs. It has been in 24/7 broadcast production since 2006. Ready-to-use downloads are available under the Releases tab https://casparcg.com.
GNU General Public License v3.0
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Audio Slowed down and glitching at 59.94 in CasparCG #1036

Open 20mchop opened 6 years ago

20mchop commented 6 years ago

Hi Everyone

I am having the following problem when trying to playback any file in caspar that is 59,94 framrate. The audio sounds slowed down, and glitchy as well as the video has micro stutters. This is extremely weird as just last week i played back 59,94 content with absolutely no problem.

I also noticed i could get CG to play back 29,97 content and it would use its converter to double the frame rate and play out correctly at 59,94. However this has also stopped working as well.

I need to play media with alpha channel as well as inserts that don’t require an alpha. My Setup is as follows:

PC: CPU - i7 3770K GPU - Gt 740 Ram - DDR 3 1600 mghz 12 Gigs Drive Adata SSD 500 Gig Playout Card - Black Magic Decklink 4k Extreme

All files are H.264 Quicktime with a bit rate of 4500 kbps, have tried both AAC audio at 128 kbps as well as PCM audio at 48kHz and 44.1 kHz at both 16 and 24Bit. Changes nothing.

My current work around is to set my channels on CG server to 29,97, output that out of the deckling card and then use 2x UpdownCross HD’s for key and fill to convert it back to 59,94 for the ATEM. it works fine and the audio and video playback is perfect, however i don’t want to sacrifice two converters just for the purpose of ensuring Caspars playback works, when i have had Caspar playback 59,94 files just last week with no issue whats so ever.

Please can someone point me in the right direction!

CasparCG Server Version: 2.0.7 Caspar ClientL 2.0.8

dotellie commented 6 years ago

We also had this problem on a production we did this week. Playing a ~40 minute video resulted in about 1 second of delay in the audio by the end, not the mention the endless stutters in the audio. The video seemed fine to us though that may very well be the cause of less than optimal display hardware.