7.1 Camtasia Studio Audio out of Sync with Video & Hitting Stop does not create video

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  • Updated 2 years ago
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I have used Camtasia Studio 5, 6 and now 7.1. I have created over 2000 classroom videos are have been relatively happy with Camtasia. But I have been having problems with version 7.1.

In 7.1 sometimes when I create videos the video and audio are not synced. How can I solve this problem?

In 6.0 and 7.1 somestimes when I hit stop, nothing happens and I have to Ctrl + Alt + Delete to end process. The frustrating part with this is that I have to re-shoot. Is there a way to prevent this from occurring I have read the recover process info sheet and have tried to recover, but each time that does not work - and I don't know why; I am not interested in the process of recovery, I am interested in how to stop it in the first place. Any ideas?

-excelisfun
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excelisfun

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Posted 5 years ago

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Cameron Flint

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Hi excelisfun,

I am very sorry that you are experiencing this issue. Typically the audio-video sync problem can occur for either of the below cases:

1. Your system is low on resources during recording. If this is true, you would be able to notice the audio-video lag right after recording (i.e., while previewing the recording, working with it on the timeline, etc. before producing).
2. You are producing a project with full-motion video from a digital camera at a non-standard frame rate. You can find the solution at: http://techsmith.custhelp.com/app/ans...

One final workaround that you can try is producing to the AVI format using Custom Production Settings path. If the lag is still noticeable in the produced AVI file, then the problem was likely caused by (1) above. If it is not, you can re-import the AVI into a new project in Camtasia and try re-producing to the desired format.
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netmktg

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This list sounded great, but did not get my problem solved. Admittedly, my situation doesn't match the one reported...I am recording a video on my camera, getting the AVI file from there and trying to add callouts and re-produce the video via Camtasia.

However, a bit more hunt-n-peck here and I think I'm good. (I produced my video maybe 6 or 8 times, including a couple "suggest settings for me" versions. Nada. All had audio-video sync problems.

I took the AVI off my camera, ran it through Any Video Converter and spit out a WMV file. I imported that WMV into my Camtasia timeline, added callouts, etc - and produced a good video. The audio and video are in sync over my 9-minute video. I haven't tested to see if it makes a difference, but the output format was a m4v file.
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excelisfun

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Thanks Cameron Flint! I have made about 20 videos since I last posted and I have been making sure that I do not have many programs open when I shoot to avoid the low resource problem. So far it is working.

However, the second question that I asked is still causing me trouble. Sometimes when I hit the stop button, nothing happens; even when I close everything down, I can't get the recording back. I eventually shut the whole computer down and when I do this I get a message that some running programs will have to be shut down before the computer can be shut down. Then when I restart the computer, then open Camtasia, then hit the record button, I see a message that says an older recording has to be Deleted or Recovered. I have tried the Recover without success and now I just hit Delete. The problem with this is that I loose video at inopportune times, meaning I have just shot the spontaneously perfect video and I have no way of re-creating it. I have been using Camtasia for almost 4 years and have made over 2000 classroom videos. I am the biggest cheerleader at my school and online at YouTube about Camtasia. This problem has happened about 20 times. Every time it happens it makes me more and more unhappy about using Camtasia.

Can you help?
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Cameron Flint

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Excelisfun,

Can you please provide me with a bit more detail? It would help me to know, for example:

1. What version of Camtasia you are running.
2. The average length of your recordings when this happens.
3. Your recording settings (accessible via Tools > Options > Input > Video Settings...). Yours should look something like this: http://screencast.com/t/1syZ2Bd5z

My suspicion is that the recording file is growing large (around 2GB) either because of the length of the recording and/or the recording settings. Historically Camtasia has had difficulty dealing with these kinds of situations.
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Cameron Flint

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Sorry, I should have clarified #1 above to ask what maintenance version you are on (i.e., 7.1.0 or 7.1.1).
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excelisfun

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1) 7.1.0
2) I do not know the average length. But the last video was about 20 minutes. For your experience what length is too long? Is it time or the 2 GB size you mentioned?
3) Mine look like the screen shot. The only difference is the screen capture frame = 10, not 15 as in the screen shot.
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Cameron Flint

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Excelisfun,

I talked to a few folks and they seem to have experienced this (the hang-on-stop, that is) on occasion too, though we don't yet know the root cause. It seems that sometimes if you wait long enough after hitting stop, the recording will finish processing in the background and the preview window will eventually show up. I realize this is super inconvenient, though it is better than losing the recording.

You also might go ahead and try upgrading to 7.1.1 (via Help > Check for updates). It's a shot in the dark, but we did resolve a number of problems with that release.

To answer your question about video length, it is the file size that matters (due to format restrictions), though many different variables can factor into the file size. Some of them we have checked, such as the recording codec and frame rate. One other thing you might try is reducing your screen resolution to something like 1024x768 or 800x600 (standard 4:3) or 1280x720 (16:9 widescreen). This can dramatically reduce both the real-time processing needed and the resulting file size.

If you're still experiencing the problem after trying the above recommendations, it will be best to open a ticket with support here:

http://techsmith.custhelp.com/app/ans...

Support gathers more detailed troubleshooting information and will pass this on to us so that we can get to the root of the issue. My apologies again for the inconvenience!
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excelisfun

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I am going to watch the times and sizes when it happens and try to notice any patterns. I will also let it just sit and see if it finally does process. I will try 7.1.1 also. I will keep you posted and try to open a ticket when I get more data. It is certainly a drag when it happens and you do loose a video... Thanks for your help so far.
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Scott Johnson

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Voice and video does not sync with Studio 8

I have plenty of RAM, fresh reboot with no programs running in background and yet, I get a sync problem. I am doing a screen capture with my web cam running.

Sync is correct for the first 45 seconds to a minute and then slowly begins to lag. This is a simple 9 min recording that by the first 3 minutes has terrible results.

Very frustrating... I can use my Jing and have no issues.
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Mary L. Keller

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Me too. I'm on 1.2.3 (because Camtasia 2 would not play with my iMac), and my last two videos, all under 15 min., have had odd glitches. I just spent an hour trying to align the video with the audio. I split them apart, and using the magnifier tried for a precision connection, but I don't think it's a simple "late start" problem. I think the speed of the video is not syncing with the speed of the audio. I had intended to get through three lectures in this time.
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Mary L. Keller

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I just found 1 seconds of flat time at the beginning of the audio, so I dragged the arrow on the left edge of the audio to the beginning of the video, hoping that meant that the length of the audio would coincide better with the length of the video, and produce a more in-sync video. I think it did. Pain in the butt.
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Mary L. Keller

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I've doubled my RAM to 8GB, recorded with NOTHING else running, and my last two videos have 2 second audio lag.  TechSmith--can you help?