The noise removal feature in Camtasia 9 is quite impressive, but with a few custom tweaks, you can get even more noise removing power. Come along for the ride as Corbin Anderson shows you how.
- [Corbin] I have to say I am quite impressed with the noise removal tool in Camtasia 9. Even the default settings do a really nice job of removing computer fans, air vents, and other ambient noise. Unfortunately, it can't eliminate audio annoyances like screaming kids or your neighbor's weed-whacker. The best noise removal is of course to remove the noise before it gets to our recording. But noise happens. So, let's look at taking noise removal to level to the next level. The first step is to capture the ambient noise itself to give Camtasia the info it needs to determine what is noise and what is not.
A great way to do this is to wait five seconds after you hit record before you begin speaking, like I've done in this clip. This will give Camtasia a nice sample of the ambient noise or room tone in your recording environment. Camtasia can then process that audio, compare it with your recording, and do a better job of removing the noise and not your voice. In this clip, I've intentionally created a ton of ambient noise. I literally stuck the microphone right next to my desktop computer fan, so I'd have an extreme example to work with.
Here, let's give it a listen. (fan humming) Now, if you have this much ambient noise in your recording, I highly recommend you work on cutting down on what's going into your microphone first. Garbage in, garbage out as the saying goes. Find a quiet room that's insulated from the outside world, and cut down on as much ambient noise as you can. Unplug your mini fridge, temporarily turn off the AC if it's possible.
Close your eyes and listen for a minute. Anything you can hear, try to find a way to remove or minimize. Even with all that prep work, you may still have a bit of unwanted noise. Like I said, what I have here is an extreme example with a ridiculous amount of noise. I don't expect to remove it all, but let's see what I can to do clean it up using some advance noise removal techniques. First, I'm going to try the default drag and drop noise removal. Go to Audio Effects, Noise Removal.
I'm just going to drag and drop, and let's see what Camtasia has done. Right there, that's quite a bit better, and in many cases, would be enough. The five seconds of ambient noise at the beginning, really helps Camtasia work things out. But I think I can make a few tweaks and make it even better. I'm going to provide Camtasia with a sample of just the noise, just to be sure it understands. So I'm going to highlight this area where I know it's just noise, and choose analyze.
Now, Camtasia has a clean picture of what the noise is I want to remove. Let's give it a try and see if it got any better. Maybe a little better, but at least I'm confident that Camtasia understands what the noise is and what is not. But a few tweaks to the sensitivity and amount should help things sound even better. I'm going to play around here a bit and push the sensitivity all the way up. Let's see what we have. Okay, that got that rid of a lot of the noise, but let's see what it's done to my voice now.
Welcome to Graphic Novel Design. Clearly, that had a negative effect on my voice. So, I'm going to put this back down to zero where it was for now. We may have to tweak it later. Let's see how that sounds. Welcome to Graphic Novel. Okay, we still got noise, but my voice isn't affected too much. Let's try playing with the amount. I'm going to push this up all the way, just to see what we get. Welcome to Graphic Novel Design. I'm Corbin. Okay, that's good.
It sounds like the amount did not affect my voice a lot, and it's helping get rid of the noise. I'm going to try pulling down the sensitivity a bit here, and see if that helps. Let's try negative 20, all the way down. Welcome to. Okay, now our sensitivity is just way too low. The noise is not being removed. Let's try 10, about half way where we were before. Welcome to Graphic Novel. Okay, that's still making my voice sound wonky.
Let's try five. Welcome to Graphic Novel Design. That's better, but it still sounds odd, and it's not really helping remove any more noise. I'm just going to leave it at zero. That seems to be the best of both worlds. Okay, let's see what we have here. Let's just listen to the noise. Pretty good, given how much noise there was there. Now let's try my voice. Welcome to Graphic Novel Design. All right, I can hear a little bit of an effect, but all in all, it's quite good, given how much ambient noise was there.
These settings work well for this particular recording, but they may not work well for the next one if the noise is different. You'll nee to experiment with each recording and find the settings that work best. Okay, now I'm going to do a little manual editing to clean this up. First thing I'm going to do is trim off all this noise at the beginning. I don't need it, so I'm going to select it all, right click, Ripple Delete. I'm going to do the same here at the end, where it ends. Novel. Get that off.
And there's a couple of spots in here where there's just noise, where I stop talking, and I'm just going to bring down the noise there. I'm going to select the area where there's no talking and bring down the volume not all the way. I don't want it to be too extreme, but let's say 20%. Let's see how that sounds. Hi, I'm Corbin. I can hear a little bit of fluctuation there, so I'm going to pull this handle out to smooth it out a bit. Graphic Novel Design. I'm Corbin.
That's better, and I got one more to do here, I believe. Right there. Same thing, select the area, bring down the volume, 20%. Let's smooth that out a little bit. Corbin, I'll be your. Pretty good. There's one final trick. If you've still got noise and just can't tolerate it, add some music to mask the noise. Now, I'm generally not a big fan of music in tutorials. I find it distracting.
But for this project, I was planning on using it anyway, so I'm going to give it a go. I'm going to go up here to the Media, Library, and let's find the music track here. We'll go with asimpleway. I'm going to give that a listen. (upbeat music) Okay, I'm going to drag that down here to the timeline, and see what I got going on here. It's obviously way too long.
Let's cut this out there. Start about there. Cut this down to match the track. Just doing a quick edit here. And let's see how that sounds. To Graphic Novel Design. Obviously way too loud. I'm going to bring this down. Welcome to Graphic Novel. Even a little more. Design, I'm Corbin. I'll be your guide on this adventure as we. Just a little bit more.
Creating your own graphic novel. Okay, all in all, not too bad. It still need some tweaking, but given the ridiculously noisy starting point I had, I think I could pass this off. So, hopefully, now if you find yourself with a noisy track, you'll have a few advanced noise removal tricks up your sleeve, and can handle this situation.
- Advanced microphone options
- Exploring Camtasia Studio preferences
- Making edits during a recording
- Organizing the media bin
- Building an asset library
- Extending a frame
- Making use of Google Drive
- Advanced marker techniques
- Advanced behavior modification
- Adding reusable assets to your library
- Blurring sensitive information
- Removing a green screen
- Transcoding files for compatibility
- Replacing a troublesome track