I am also hoping to get an answer to this, as I am experiencing the same issues. Distortion added (48Khz, 16000, mono wav files) and unable to add silence to the beginning of audio. I am running at Build 1596.
I am also on build 1596. The problem is strange because everything was working perfectly and then just one day this issue appeared and has yet to be resolved. I am now editing my audio files in Audacity and then importing into Captivate and just adjusting slide timing to the audio I imported.
I also found it helps that you set your project to the highest audio setting. In Audio -> Settings... I set the Encoding Bitrate to CD 128 kbps and Encoding Frequency to 44.100 KHz. I left Encoding Speed at 5.
Does anyone out there have any ideas on why this problem magically appeared and what we can do to fix it?
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I would strongly recommend that you update to build 1658 which is the latest build. You can do this by carrying out these steps.
- Open Adobe Captivate
- Choose Help > Update...
The 4.0.1 patch addresses a number of audio issues and might help in your situations.
Best - Mark
Thanks Mark. The update did fix the warble-distortion issue. But I still cannot add silence to the beginning or end of the audio.
If you want to add silence at either end, your first step will need to be to position the playhead ever so slightly away from the true end or beginning. Otherwise, Captivate ever so helpfully discards the silence. So the silence needs to be inserted between the ambient noise.
Actually, this is a nice segue into a technique you may wish to use. Select a section of the ambient noise and paste it repeatedly. This will eliminate the "dead air" you hear with total silence. Sometimes inserting silence is one of those - "the cure is worse than the disease" sort of things.
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I have the latest build and my imported audio sounds terrible!
The original audio files are clean, no hiss, no distortion, however, when previewing or publishing the audio quality has greatly diminished.
What am I doing wrong?
It seems that the degradation occurs during the import from the original mp3 file. I have tried changing the encoding bitrate (even custom bitrate of 320kbps), Encoding frequency of 44.100 KHz, and an encoding speed of 0. BTW, none of these settings seem to make much difference.
What else can I try?
Please install the latest patch update for Adobe Captivate 4.
Launch Captivate 4 and go to menu item Help > Updates.
Download and install the update. Once done, launch Captivate and try publishing your content.
Hope this works.
Thanks for your reply but I guess you missed that I already mentioned that I have the latest update (build 1658).
As you have mentioned original audio files are clear. Can you please check the audio quality once imported inside Captivate? Once imported play the audio file in library or in audio edit dialog.
Is the audio quality good while playing from these locations?
The audio degrades immediately upon import. Previewing the sound is also bad... it appears that importing resamples the audio at a VERY LOW bitrate.
But, like I said, I have changed the audio settings to even the highest available settings and noticed no difference.
Perhaps I am only changing the publishing audio settings?? Is some import audio setting that I am not aware of???
I think if you have the same audio files in wav format, importing wav files should not create this issue.
Give it a try if possible.
Like your suggestion about pasting in ambient noise in audio where to have added silence.
The sudden lack of audio noise is actually quite "loud"...
Nice idea, thanks.
Has this issue been answered meanwhile ?
Importing WAV rather than MP3 did not solve the hissing problems in my Captivate 4 (built 1648, french) file.
Quality in original files before importing is good.
What else could I try ?
I'm having the same issue. I've patched to the latest version of Captivate 4 and have Audio which I have produced in Audacity. I've tried exporting the audio from Audacity both as WAV and MP3 and the same issue occurs either way.
The audio sounds great when exported from Audacity but as soon as it's imported to Captivate, it sounds like a mobile phone conversation on a bad signal.
I never used to have this problem. It just appeared one day and I've never been able to find out why. I've cranked the audio settings to the highest available but there's no difference between the lowest and highest settings as far as I can here. I'm assuming the audio settings control the output quality only, but my issue seems to be with the original importing of the audio not being of a high enough quality. Where, if possible, can I increase the quality of the audio import?