Problems with 48 kHz audio

  • 1
  • Problem
  • Updated 4 years ago
  • Solved
Whenever I capture video or import video from another editor, if the audio is in 48 kHz format Camtasia Studio does not like it. It sounds very degraded. After a lot of trial and error, I realized that if I change the audio to 44.1 kHz it sounds fine.

Is this a known problem? Or should I start to look "Under the hood" in my pc?

Thanks
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john

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Posted 6 years ago

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Dave O'Rourke, Senior Software Engineer

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The Camtasia Studio timeline uses 44.1 kHz, 16-bit, Stereo as the mix format. So any source audio at 48 kHz get resampled to 44.1 kHz. This shouldn't cause the audio quality to degrade significantly, but your results indicate otherwise. By using 44.1 kHz, you avoid the resampling, which is why you're getting better quality.

We may be able to improve the resampling in the future. For now, you'll get the best results getting as close as you can to 44.1 kHz, 16-bit, Stereo (or Mono) audio.

Hope this helps.
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john

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Ok, thanks
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martin.iwinski

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Yeah I noticed the audio I had recorded sounded very bad when Camtasia resampled it to 44.1kHz. It would be nice for Camtasia to support 48kHz in the future or at least be able to downsample without degrading it so much. Thanks.
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john

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+1
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Fred Grover, Champion

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I would like to see this fixed in the new version of Camtasia Studio 9 when it comes out and I am still hoping for ASIO Support. At least there is a work a round right now but having the issue fixed would be better. Just my opinion.

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