I have been able to narrow the issue down to the Ultrastudio SDI, since when I use the cameras audio and bypass the audio to SDI device I get the same results. I have tried many things to fix/troubleshoot this. Media express and Wirecast both detect the incoming video signal as 720/59.97fps, not 720/60p. I changed the setting to render using YUV colorspace on the GPU with no noticeable change to the CPU usage or audio. So wether it is outputing at 600bps or 4000kbps has no influence on the symptom. solid 30fps at all times (is that what is being output on the stream or what I am watching in the view window btw?) and the bit rate varies but it doesnt seem to make any difference wether I set it to the minimum, recommended or maximum setting in wirecast. I don't see a correlation with any other happenings, such as spikes in CPU usage for wirecast, output frame rate drops, bitrate drops or anything like that.
It will run fine for long periods of time (10-12 minutes) and then get a bunch of annoying pops and clicks (sometimes just one, sometimes several) then runs ok for a few minutes, happens again and so on. My issue with this setup is that I am getting intermittent pops and clicks in the audio.
#Wirecast play 6 how to#
BMD audio to SDI (updated to current firmware), which is embedding the audio mixers output to the SDI streamīMD Ultrastudio SDI (i think it is updated but am not sure how to do this) to Mac mini running OSX 10.10.5
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