Trying alter different parts of audio track; such as lowering voices and raising background music.

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Good day. I am trying to dissect the audio track. What I am trying to do is lower the music playing, and at the same time, raise the sound of an explosion. 
I know how to add audio points. But that raises/lowers ALL of the sound on that track. I only want to raise/lower specific parts of the audio.

I will try and upload the clip I am trying to edit. You will hear music playing as a second explosion happens. I have added audio points to make the second explosion louder than the rest of the video. But I want to make just the sound of the explosion louder, not the music. 

Is there a way to do this? I have tried to search videos on YouTube. But all the videos just talk about audio points. I need to go deeper into the audio. I just don't know how.
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Bryan Petersen

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Posted 2 months ago

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Rick Stone

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Hmmm, generally speaking you configure the audio points. But if that's not working for you, you might try splitting the audio track a couple of times so that you isolate the second explosion. Then apply a volume adjustment to the section you split out.
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Bryan Petersen

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Ok. But after reading Joe's post, this sounds like it can't be done. How do you split the sound track further? I can separate the audio from the video. But separating the audio track further, is something I don't know how to do.  
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Rick Stone

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What I understood from the earlier post was that you had audio that was perhaps 20 seconds long and you wanted maybe two seconds in the middle of that 20 second clip to be louder. And if that were the case, you might need to split the long audio clip into perhaps three different segments. And if you did that, you could adjust the volume of each segment independently.

Looks like you are wanting what Joe was talking about. The ability to isolate the explosion sound from the music and make only the explosion louder. And as Joe said, you can't. At least not using Camtasia. I've seen examples Adobe uses for their audio editing software where they are able to somehow analyze and remove a cel phone ring from a speech. Stuff like that. But it requires specialized knowledge of how to use the audio software.

Cheers... Rick :)
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Joe Morgan

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You won't be able to isolate the explosion from the music. The music is way to loud for that.

Camtasia can't help you, it doesn't have any tools to help you with separation. If you had the Free program Audacity.
You could apply a graphic equalizer to the audio. Bring up the sound of the explosion.
I wouldn't bring down the sound of the music much.As it would only sound much worse through alteration.

You could download a free explosion sound.Try adding it the timeline at the point of explosion, see if you can make that work.
Bottom line, you're attempting to separate audio that's joined at the hip.They don't make tools for that.
When that video was made, you can bet the explosion was on a separate track from the music.

https://freesound.org/

Good luck,Regards,Joe

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Joe Morgan

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In case your wondering. I looked this audio over.The music is to loud.
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Bryan Petersen

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Yeah, I know that music is too loud. That's why I was trying to isolate one sound. I figured with all the technology now, that there would be a way. I've seen videos of people doing it. But I'm guessing you need very special equipment to do it. 

I guess I also thought there was another way to split the sound even further...making the different sound profiles available to edit. I thought by zooming in far enough on the sound track, I could isolate the sound I wanted. But if it's all blended together, then I'm at a loss. 

Thanks for the replies.
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Joe Morgan

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Okay here’s what I did.

I use Adobe Audition. I downloaded your video from YouTube, and that’s how I got my hands on it. I placed it in Adobe Audition.

I created a multitrack editing session. I downloaded an explosion from freesound.org. I placed that explosion in timing with the secondary one that you were referring to. I placed keyframes on the original audio track. I lowered the volume of that track until I thought the audio level sounded correct to my ears. That was the simplest way to do it. I think it came out okay. You can hear it in the video below.


If you want that piece of doctored audio to use in your video you can download it here. https://www.mediafire.com/file/66hj66qbj35crum/Example.wav/file

You can isolate many individual sounds, like a cell phone ringing. Clicks and bangs, so forth and so on.And remove them, provided the sounds they are Producing. Fall outside of the audio Frequency range, of the sounds that you need to preserve.
You see, every frequency you remove, effects every sound containing that frequency. So it's not exactly a cut and dry operation to attack sound removal.

Then, music or any sound. That is literally dominating the audio track.Cannot be isolated and dealt with separately. It's to intertwined with everything else.The reason I was mentioning a graphic equalizer is because you can target specific frequencies to a certain degree. But you also degrade or enhance the frequency's at the same time.There are other approaches I'm sure.  I thought I would show you how I would solve it if I were you.

Regards,Joe
(Edited)
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Bryan Petersen

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Ah ok. I see what you did. I'm pretty familiar with what you are describing. Using what you did, I think I understand the total picture...(meaning how to dissect it the way you did).

Thanks again for the help. 
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Joe Morgan

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No problem, here's a screen shot I took as I did it.
I forgot to upload it earlier. The soundtrack is the red track.Explosion above.

I used 4 audio points. So the audio fades out and back in gradually. I didn't turn the volume all the way down either.