Problems:MXF, output etc

[vtlipera]

Few problems : 1) MXF files play choppy ,pic and sound, (have dual xeons3.2,2 gigs of ram, raid drive), DV files work fine 2) can't output to a tv monitor unless vt4.6 is running and SE is on the switcher, it's a vt3 card but tech support said it should work without vt4.6 having to run;tech support told me they were working on the phone with a vt3 card. 3) if you play a 24p project (options set correctly) SE will crash every time but sometimes a 720p project will play, tech support thinks this may be a bug. Any ideas. Thanks, Bill

[stevehmeyer]

Ditto for the mxf files, playback is choppy, audio is too. When rendered into a movie file all is ok.

I rendered to m2v, avi and mov files with a variety of settings and codecs and all movies play well.

Looks like a throughput issue, not a data integrity issue.

Dual Xeon 2.66mhz, 2GB, RAID0 array (free space=95% and defragged) with all unnecessary background processes and services closed.

Thanks SE team the ability to read mxf files directly is a big help.

Steve

[wvp]

Few problems : 1) ...2) can't output to a tv monitor unless vt4.6 is running and SE is on the switcher, it's a vt3 card but tech support said it should work without vt4.6 having to run...
I'm pretty sure you need VT running. You might be able to put the SpeedEdit input to #1 on the switcher and after closing VT the video will still go through but I'm not so sure about audio.

[Danic101]

Well don't forget DVCPRO HD is 100mbs per second so your arrays are probaly not fast enough. Try adjusting your background render settings.

[vtlipera]

How would I know if the arrays are not fast enough( is there a test) and what would you suugest about the background rendering. thanks.

[rbartlett]

DVCProHD at 100Megabits/sec is still a lot less than the 22MBytes/sec of uncompressed standard def. So assuming that the RAID was put into this PC to accomodate 22MByte/sec RTV or 30MByte/sec 4:2:2 AVI - then a peasley 100Mbps DVCProHD ought to be chicken feed.

I'd say there is another bottleneck other than this. Maybe turn background rendering off for HD material/projects. You maybe catering for a complex eventuality or a machine worse than what you actually have.

Although I don't know what the MXF functions themselves are like. I'd imagine that the hit is about the same as 4 layers of HDV plus the factor that the MXF function is new and might be less optimized than HDV25 or HDV19.