How do I remove audio echo in Camtasia Studio 8?

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how do I remove echo audio?

I have several .camrec clips recorded in Camtasia 8 from online video and when I play the files in Camtasia's video player I hear a bad echo.

How can I remove or prevent the audio track from having this echo?
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pauljacques

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  • really disappointed....

Posted 7 years ago

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Ajay Paul

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I'm trying to make a course in udemy.When i hear my audio it's fine.But they are saying that it have an echo ,so they can't approve it.I have used Camtasia 8 for this.Any solution to the problem without re-making?
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Fred Grover, Champion

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Hello Ajay. I watch Udemy Videos all the time but without seeing it on Udemy if it is not giving you that effect in the preview it is hard to say what might cause this for them or what they hear. Is it a Course that you could provide a sample link that is on Udemy for us to listen to and watch to see if we can hear the echo or not ? I am not sure how you recorded your video or what version of Camtasia Studio you are using and your OS but let us know and I can try to help with this issue. Thanks for posting and sorry for your problem.

Have a Merry Christmas and a great day/night.
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vojislavbudrovac

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Just delete line (System Audio) below (Screen) line, but before that wait a couple minutes to load equalaizer into video and that's it. Greetings
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Just helping

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Happened to me too. I left the mic on and the system audio and the audio picked up from the mic goes out of sync eventually.
Solution without rerecoding: There are two tracks per recording - A screen and A system audio. Right click on the Screen and select "Separate Audio and Video". Now you will have three tracks. One for System Audio. One for Screen video and one for screen audio. Delete one of the audio tracks as per your preference.(As I didn't need the audio picked from the mic, because I was recording a tutorial, I deleted the screen audio).

Hope this helps someone.
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vojislavbudrovac

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Don't "Separate Audio and Video", just delete line (System Audio) below line(Screen), but before that wait a couple minutes to load equalaizer into video and that's it. Greetings
(Edited)
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Muhammad adnan

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I found that the problem is. some time during the video recording the video himself got corrupted

 so if you do record voice narration it will record on top of a video who is skipping or lagging .The

best thing to do this delete that part of the video.Sometimes it can be the video you are recording

and not caused by Camtasia studio 8.Do you hear the echo when you just play the video you are

 recording.This can happen if you record your system audio and through your microphone at the

same time.You can essentially record the same information in both areas causing an echo.
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karlo-marlo

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I found a solution with echo in Camtasia.

Camtasia sometimes works incorrectly with mp3 files. Some mp3-files placed into Camtasia will cause an echo effect.

May be Audition does something to the mp3-files, I don't know why. (As I revealed, Camtasia "doesn't like" the Alt-Ctrl-S Audition save operation. Maybe it is the reason.) Hearing the track, they do not differ.

The solution is very simple.
1. Choose mp3-file _without_ echo effect.
2. Transfer the contents of mp3-file _with_ echo effect into mp3-file _without_ echo effect. Via copy-paste (Ctrl-C - Ctrl-V). The mp3-files _without_ echo effect works correctly in Camtasia.
3. Later, use only "right" mp-3 files in your work in Camtasia.

Alexander Felitsyn
(Edited)
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tom-cologne

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4 years later. Camtasia 9. Echo is still occurring. Since I need to record masses of two-way Skype conversations for documentary purposes, I cannot escape to editing tricks. So I went into my hardware archive and dusted a 12 years old Polycom Soundstation2 with hardware based echo cancellation. It was needed back in the days when Skype had not yet integrated its Echo Cancellation module of nowadays. Et voilà, there was no more echo in the camtasia recording.

Wonder why Camtasia developpers ... no, I'll keep silent.
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Fred Grover, Champion

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tom I can say I have not run into this issue with any echo as of yet in Camtasia Studio 9 on the PC Version knock on wood. I can make it have an echo if I use the Record Mic and System Audio together and listen to any other audio files while I am recording using the Camtasia Studio 9 Recorder and have my speakers turned up. So I use headphones or earbuds and have my speaker volume turned down and no issue.

I also use a Pro Audio Setup with a Mixer and other things and record into a digital recorder and sync my audio up if necessary to the video I am recording with no issue as it all lines up well for the most part. What I would like to offer is when people use a Third Party software for recording their audio or import any audio into Camtasia Studio for their Video(s) that they use the .wav file and bring that into Camtasia over a .mp3 file. A .WAV file is uncompressed audio file format that has no loss in the codec (For Example: It is like listening to an old vinyl record and a digital file that is in the standard .mp3 file is a Compressed File and if a person uses that when importing or adding a .mp3 file into Camtasia Studio Editor and then Produce/Share/Render their video out it does that in an .mp3 audio format through the software if that makes sense. Then the user is double compressing that audio file(s) and it will have a very noticeable difference in the sound. You should also be matching the Constant Variable in the file setting for the sound. Meaning that Camtasia Studio uses a 44,100Khz usually 128kbs for their audio settings and one should try to match that audio setting with their mic and in any third party audio editing software too per say in Audacity, Adobe Audition, Cubase, Reaper, ProTools,GarageBand if on a Mac or LogicPro, etc.

There is also some who use USB Audio Interfaces and the software provided with them to record their audio with and then it gets into a more complicated feature of using ASIO Drivers which TechSmith does not use so they need to switch it to use a WDM File for that purpose when using Camtasia Studio or possibly other software for screen recordings that do not support ASIO Drivers. There is not a screen recorder software that I personally know of yet for the PC Platform that does support that Format yet. It would be nice for those who do use more Pro Audio Equipment but with the cost of licensing and using ASIO it can get very costly and then the software companies would have to sale their software at an un-affordable cost to their users. I guess larger audio companies that do this must know something that works for them and I guess it could be investigated to find out how to implement it but that is beyond me to do.

So even if using Camtasia Studio to record audio it is in the .wav format and when Produced/Shared or Rendered it uses the .mp3 audio file format as the .wav file format is huge in size compared to the .mp3 format files. So in short one would want to use a .wav audio file format when doing their editing in a third party audio editing software and when they complete their editing save it out or render it into the same .wav format and then import it into Camtasia Studio for editing and then final production. And when recording your audio using Camtasia Studio make sure the 44,100 Khz is used on both the settings for Camtasia Studio Audio Settings and your Mic or OS when possible. Audio can have a lot of things go wrong just as in video and it can go into easy or hard and greater details when it comes to using audio from another source and not knowing what to look for in the audio file and to know if it was a Constant or Variable Recording that was used. I would recommend a Constant over the Variable. Hope this helps to explain some of this in detail and sorry for the long post but one could write a book to teach the audio and explain all the differences and measures to take for the best audio. I may make some videos on audio setups using both USB Headset Mics and some with more of a Pro Audio Setup if there is interest in time.

Hope this information has helped some and they like it and find it useful. Have a great day/night.
(Edited)
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tom-cologne

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Fred, thank you so much for your detailed insight in what you are doing!

There is a basic difference between our works, however. I am not a media producer, but i do field research. So I can change the technological settings in my field only to a very limited degree. When I record Skype conferences with 3 people on the one side and 5 people an the other side, it is NO OPTION AT ALL to force all of the participants to wear HEADSETS in order to obtain an echo-free Camtasia recording (and it is beyond imagination to go without recording "microphone"). Social life within Skype conferences most often requires hands-free devices. That's state of the art in 2017. And just as Skype cared for echo cancellation within Skype conferences, Camtasia has to provision echo cancellation within the recordings of hands-free Skype conferences.

Continuing my investigations of last night, I thought: The same job that the hardware based audio echo cancellation of a Polycom Soundstation does, should be accomplished by any AEC of any microphone. Fortunately, my recording machine Yoga3 comes with the optional feature of echo cancellation, developped by Fortemedia.  And Eureka! after enabling AEC, my Camtasia recording of a "natural" Skype session was without echo.

I am still wondering why such an AEC module is not generally included in the sophisticated Camtasia software.


(Edited)
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Fred Grover, Champion

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I cannot say why TechSmith does not implement things in their software that is something you may want to post as an Idea here and possibly send them an email to ask them about and they may have another suggestion than myself.

I have recorded more people on Skype in the past with my Home Studio Setup and just a USB Headset Mic without any issue other than when everyone was trying to talk at once over each other which is something Skype has a new setting for as it has been awhile since I used Skype. It also had some echo and background noise too. I was trying to say that if someone is using a mic so they can talk back with no headset and going hands free and they have their speakers turned up so they can hear the other person then you are going to hear that back for now unfortunately as the Mic will pickup the sound(s) coming from the speaker. Do the others you talk to have this issue when they record or are you the only one doing the recording ? I know it would be nice to have it work without any issues as it would be nice with any software to never have any issues before hitting the market to the public. But that would be in a perfect World so we have to report things and suggest things in order for any Companies to take notice and see if the demand is high enough to justify what we want in my opinion. I am glad your latest try with your mic has worked out for now for you. Have a great day/night and thanks for posting.
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tom-cologne

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I appreciate your question concerning the location of recordings. Yes, I will do recordings at both ends in order to see things from both perspectives. The harder part is the remote side, now as it will not suffice to install Camtasia, but there is a need to ensure AEC by suitable hardware. Maybe I'll distribute speakerphones like Jabra Speak as a standardized solution out-of-the-box. Since my number of remote locations may easily increase from 10 to 50, this also becomes a question of budget and logistics.

As for the development of Camtasia, I'll certainly tell them my customer desire. Ooops, is "feedback.techsmith.com" not followed by techsmith staff, anyway??

Enjoy your day/night/twilight, and thank YOU for your substantial postings.
(Edited)
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Fred Grover, Champion

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tom yes some of the TechSmith Staff follow and check this user to user board but they do not always answer back or see them all. That is why I suggested to post this as an idea or even contact them too and make the suggestion(s).

It has been stated that you can delete the audio if there is also audio on the video track or you could see if the video track has the audio and there is another track that just has the audio then you can seprate the audio and video from the video track and delete the one audio track but make sure to lock the video track first just for safe measures.

Your welcome for the postings and thanks for the acknowledgement for that and I hope they help and you like the information provided by myself and others. Have a great day/night. :)
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ricardoacosta.me

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If you look at the time line to the left you will see
Video 1
Audio 1
then also audio 2 if you hear that echo there should be an audio 2.

Highlight Audio 2 and delete it.