I have converted an ACVHD file over to MP4 and see the audio wavefiles in Camtasia. However, I cannot hear them.

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  • Updated 10 months ago
I used a Sony chip camera to record, which results in ACVHD file. I was able to convert it with Moravi to an MP4 and import it into Camtasia. 
The audio waveform shows up and is visible, but you cannot hear it! I looked at other articles that suggested a fix in the "sound" settings, but I tried them all and nothing seemed to work. I put in a ticket to tech support but they will not help since it is an older version (8.6, Windows) I am trying to get this together for a colleague who needs it tomorrow. HELP please? Thank you anyone. Lori Windle OSMRE
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lwindle

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Posted 10 months ago

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Joe Morgan

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I would try converting it with Handbrake. https://handbrake.fr/


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lwindle

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hi Joe! Thanks for this suggestion. I will see if that works better than Moravi. 
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Rick Stone

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If you record your voice using the Camtasia recorder do you hear it?
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lwindle

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hi Rick, thanks for your response. Actually, I rarely have used the Camtasia recorder, but shoot independently and import. Some folks in my office have used the recorder in the past and there was no problem with the audio at all.
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Rick Stone

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My thought on this is that it would be a really quick way to rule out any issues with Camtasia and audio. If you hear your voice, you know it has something to do with the actual file you have loaded. But if not, no amount of converting formats will help.
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rg

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I use Camtasia 8.6 and experienced problems with ACVHD files from a broadcast-quality Sony camera.  I have converted the files to MP4 using Bigasoft and using Wise; I found Bigasoft gave more control over the output and retained better resolution after the conversion.  In the past, I used Switch 3.0 -- but the conversion took too much time and resulted in massively larger files (although the quality was impeccable).
However, even with all of that being said:  If you are seeing an audio waveform on the timeline, you should also be able to hear the sound of that waveform -- so the issue may that the audio stream was not converted with the video (this can in fact happen -- the video and audio are "inside" an MP4 wrapper but the audio may be something exotic that you don't have a codec for).  As a first step, I recommend checking the conversion settings to verify that the audio is also being converted properly (a "pass through" will not work from ACVHD).
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lwindle

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Hi RG - thanks for your reply - Glad to hear someone is using similar equipment and I appreciate your insight. When I converted it from ACVHD to MP4 and imported to Camtasia, it came as one track. Then I separated the audio from the video, hoping I could work with it that way. But still could not "hear" the audio - tried multiple fixes having to do with the sound settings. Tried to export only the audio to convert to a different audio format to re-import with no luck. But understand what you are saying about the conversion settings to verify its doing the right thing by audio. I will check and try again. thanks!
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Dubie

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@lwindle

If you export the audio can you play and hear it in a player (windows media player) ?

If so, have you checked if the Camtasia sound is on and turned up?

With Camtasia editor open and media with audio on a timeline
Right-click on the taskbar speaker and click on "Open Volume mixer"



Make sure there is NO X on the Camtasia speaker. If there is a X, click on the speaker to toggle the sound to on. also drag the volume slider up some.



Dubie:)
(Edited)
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lwindle

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Thanks Dubie! I thought I had resolved my issue by simply selecting the tracks and "update media".
Now that I have saved the project and came back the next day - it chatters! Not sure whats going on, I thought the problem was resolved, only to have another one crop up. this person is depending on me to get this done today. yikes, any ideas on this now would be appreciated. (I have saved, closed, logged out and back in, re-opened the file - still chattering, stalling) so frustrating. thanks
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Dubie

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Is the audio playback bad in the editor and mp4 or just the rendered mp4 ?

The video (sound excluded) plays back ok, correct? It's just the audio with issues.

If you export only the audio, can you play/hear it ok in a media player like Windows media or VLC.

Have you tried to convert/re-code just the audio only and see if it corrects the problem.

You can export the audio on the timeline from Camtasia as a .wav
Convert/re-code it ( I use Audacity for all my audio work)  to a 44,100Hz 16 bit .wav
and bring that back into Camtasia.

Camtasia likes 44,100 16 bit wav files the best.


Dubie:)
(Edited)
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lwindle

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as far as I can tell it is in the editor. The video chatters and stalls with the audio now. Don't know if the audio is creating the resultant problem alone. I do not know how to export just the audio to try to save it as a different format and re-import. I will see if I can follow your instructions and get a better result. Thank you!!
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Joe Morgan

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To export audio...........

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rg

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If the audio of the converted MP4 sounds fine in Windows Media Player, the issue is probably with how the ACVHD file's audio was encoded going into MP4.  An option to consider is using your converter program to create only a separate 24-bit (not 32) WAV file, and then import the WAV file into Camtasia; re-sync to the video.  As noted, in order to import ACVHD files from a Sony broadcast-quality camera into Camtasia 8.6, I have converted to MP4 using Bigasoft or Wise or Switch -- but always making sure that the audio is not simply "pass through" as the format must be changed.  (I have not used Movavi software for this, so I don't know how that software deals with audio.)