Some audio files do not contain any sound waves.

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  • Updated 6 months ago
I made six various recordings (various projects), video plus audio. Two of them had functionning audio files; the first and the last one. Four had audio files but no sound waves!
All recordings were made within 3 hours; created and saved in the exactly the same way and no changes of settings and no device was switched off and on again.

Have searched internet. There seems to be several problems with audio. Beginning to regret my purchase - but hope someone has a solution to this problem, as it is very annoying putting in a lot of effort and then discover that nothing was actually produced.
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Anna-Lena Svensson

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Posted 6 months ago

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Timbre4, Champion

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Hello, the program works well overall, I'd be concerned if no clips were produced with audio. The fact that two did properly points to an examination of the issue with the other four clips. We could probably speak to this better if you detailed the sources of audio in these projects. (mic, mixer, USB, podcast, etc.)

I believe you are saying there are audio tracks visible but they appear empty in terms of waveform on timeline that represents audio? Do you save files as trec or AVI?

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Rick Stone

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In addition to what Tim asked, when you play the files on the timeline, do you actually hear audio? I've seen recent posts where folks hear the audio just fine, but for some reason it isn't visible as a waveform on teh timeline.

If there actually was no audio recorded, you may need to check the device you are using. I believe Tim alluded to that in the first paragraph. But I know I've used mics before that have mute buttons that are all too easy to get pressed where no audio is recorded.

Cheers... Rick :)
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Anna-Lena Svensson

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Hi,
Thanks for yor answers.
Screen and audio were recorded simultaneously. Audio files have been created for all six recordings but four out of the six recordings have no sound waves  (empty in terms of waveform on timeline) and you cannot hear audio when playing them.
All recordings were saved in the same way (as projects and also as "audio only" (wave)).
There is no mute button on the mic (USB connection only).

What puzzles me is that two were ok, but four were not, though they were all done in the same way and no settings were changed.
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Timbre4, Champion

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Is the USB mic the only audio input? Do you have the means of seeing audio meter (signal activity) before you begin  or during recording? Did you notice whether audio was ON during these projects? There a couple ways to miss the audio; perhaps a) audio was off [RED] OR b) audio was on but 'Do not record microphone' was selected? If no equipment or connections changed then one has to review the recording settings.


(Edited)
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Anna-Lena Svensson

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The USB mic was selected as audio input in the camtasia recording display as well as in the windows' audio settings (recording).
Audio was on (green) during the recordings.
No settings were changed during the time the six recordings were made.
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Timbre4, Champion

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Okay audio was on; was there meter action (level changes) visible to the right of 'Audio On'? Short of looking over your shoulder during recording, I've run out of possibilities.
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Anna-Lena Svensson

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That's the only thing I cannot guarantee, as I did'nt check this (for none of the files) - but there appears to be absolutely no reason why there should no meter action (nothing was done differently). Thanks for trying!