High CPU usage when audio transcoding?

[SVRUM]

Keep in mind that ffmpeg will transcode as fast as possible.  High utilization is fine as long as it is transcoding at a really high frame rate.  In your case it is going at about ~350-400fps when just transcoding audio.  Your setup could handle many more simultaneous audio transcodes before CPU performance became a problem.  Assuming just audio transcoding, it could probably handle ~10 more simultaneous streams comfortably.

Pre-transcoding is an option, but it is a lot of work if you don't have consistently have 10+ users.  If it is only you and 1-2 friends, your setup is perfectly capable of handling the load.  Even video transcoding.

Hmm okay, so was just surprised that it was that high. You mention transcoding audio at 350-400fps, how does that work? Is that number in the logs? Could you for example for e it to transcode at a slower frame rate, I’m assuming it’s matching to the frame rate of the video, 24fps in this case right? Lower CPU usage that way?  I’m new to the whole video transcoding stuff, I only know different formats for music CD’s and things.