• Compression Techniques

  CBR & VBR Peaking Beyond Wanted Mbps Speed

  Posted by Matt Kellogg on June 16, 2017 at 10:46 pm

  I am trying to streamline a work flow where I have videos playing on a loop (Simulated-Live) for online streaming. I have determined that when the speed of the file is at 2mbps, then all works good.

  The problem is I have different length videos and it seems the longer ones will actually speed up and hit up to 8mpbs which throws the audio off. I have a short 60 second video I am trying testing out and I see the best way to go, so here are my questions:

  1 — I am suing VLC to see the input bit rate which reads higher at certain points during the playback, so is there another monitoring tool that I can use?
  2 — For VBR, I set desired bit rate and max bit rate to 2mbps and I see it peak at 3.4mbps on VLC, and when I set a CBR at 2mbps, that creeps up to about 3mbps, so what can I do to ensure playback is at 2mpbs?

  I have used
  Adobe Media Encoder
  Sorenesen Squeeze
  Handbrake
  iMovie
  and StreamClip?

  trying for 2mbps, h.264 mpeg4 w/128k AAC audio

  Appreciate the community and support — thank you!

  Matt Kellogg replied 9 years ago 1 Member · 0 Replies
• 0 Replies

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