1 00:00:00,005 --> 00:00:02,004 - [Presenter] Camtasia's noise removal effect 2 00:00:02,004 --> 00:00:04,000 can do a really nice job 3 00:00:04,000 --> 00:00:06,008 of removing unwanted consistent sounds 4 00:00:06,008 --> 00:00:09,002 like air vents or computer fans. 5 00:00:09,002 --> 00:00:11,003 However, sometimes it's tough for Camtasia 6 00:00:11,003 --> 00:00:13,009 to know what is and is not noise. 7 00:00:13,009 --> 00:00:17,004 And this can result in some wonky sounding vocals. 8 00:00:17,004 --> 00:00:20,003 I'm going to show you an advanced noise removal technique 9 00:00:20,003 --> 00:00:23,006 using Room Tone to remove just the noise 10 00:00:23,006 --> 00:00:25,002 from your recording. 11 00:00:25,002 --> 00:00:27,001 If you're not familiar with this term, 12 00:00:27,001 --> 00:00:31,000 Room Tone is basically just the sound of your room. 13 00:00:31,000 --> 00:00:34,003 Now of course, the best way to remove noise in my recording 14 00:00:34,003 --> 00:00:37,006 is to remove the noise before hitting record 15 00:00:37,006 --> 00:00:40,006 but sometimes things are out of my control. 16 00:00:40,006 --> 00:00:43,000 For example, one time I did a video shoot 17 00:00:43,000 --> 00:00:46,009 at a Votech school with a very noisy heating system. 18 00:00:46,009 --> 00:00:48,000 And for some reason, 19 00:00:48,000 --> 00:00:50,007 the maintenance guy wasn't willing to turn off the heat 20 00:00:50,007 --> 00:00:52,009 to the whole school during the shoot. 21 00:00:52,009 --> 00:00:56,005 So to handle this, I captured a room tone sample 22 00:00:56,005 --> 00:00:58,007 of just that noisy air vent 23 00:00:58,007 --> 00:01:02,001 that I could use in post-production. 24 00:01:02,001 --> 00:01:06,000 Now to accomplish this, I just asked everyone to be quiet, 25 00:01:06,000 --> 00:01:09,004 hit record for 30 to 60 seconds and stop. 26 00:01:09,004 --> 00:01:14,000 Now, I have a nice clean sample of just the noise. 27 00:01:14,000 --> 00:01:16,002 Before I go any further, I want to be clear here. 28 00:01:16,002 --> 00:01:18,005 Camtasia isn't going to remove the sound 29 00:01:18,005 --> 00:01:21,005 of my industrious chainsaw Willy neighbor 30 00:01:21,005 --> 00:01:23,001 or my six-year-old pounding 31 00:01:23,001 --> 00:01:25,005 across the floor above my studio. 32 00:01:25,005 --> 00:01:29,003 However, for consistent sounds, it works really well. 33 00:01:29,003 --> 00:01:32,000 Normally I take extreme measures 34 00:01:32,000 --> 00:01:35,000 to create a quiet recording environment. 35 00:01:35,000 --> 00:01:37,002 However, for demonstration purposes 36 00:01:37,002 --> 00:01:41,001 these two clips include the lovely sound of my furnace. 37 00:01:41,001 --> 00:01:45,003 So let's give that a listen. 38 00:01:45,003 --> 00:01:48,004 In fact, I'm going to bump that up a bit so you can hear it. 39 00:01:48,004 --> 00:01:51,001 (air whooshing) 40 00:01:51,001 --> 00:01:54,002 Obviously would not want that in my recording. 41 00:01:54,002 --> 00:01:57,008 Let's see what Camtasia can do to get rid of that sound. 42 00:01:57,008 --> 00:02:01,003 I'm going to pop open audio effects, choose noise removal 43 00:02:01,003 --> 00:02:04,009 and just drag and drop it to my room tone clip. 44 00:02:04,009 --> 00:02:06,005 And with just the default settings, 45 00:02:06,005 --> 00:02:10,004 let's see how that did. 46 00:02:10,004 --> 00:02:11,006 Not too bad. 47 00:02:11,006 --> 00:02:13,002 All right, so the next thing I want to do 48 00:02:13,002 --> 00:02:16,003 is take this effect with the room tone sample 49 00:02:16,003 --> 00:02:19,005 and paste it over here in my talking head clip. 50 00:02:19,005 --> 00:02:24,006 Let's give that a listen before we add noise removal. 51 00:02:24,006 --> 00:02:27,005 All right, so you have a few Camtasia projects. 52 00:02:27,005 --> 00:02:31,002 Okay, so I want to remove just that noise from my clip. 53 00:02:31,002 --> 00:02:32,009 So I'm going to right click this clip 54 00:02:32,009 --> 00:02:35,003 that has the noise removal applied to it, 55 00:02:35,003 --> 00:02:37,005 choose copy effects, 56 00:02:37,005 --> 00:02:42,002 select my other clip and choose paste effects. 57 00:02:42,002 --> 00:02:45,007 Now Camtasia should remove just that room tone 58 00:02:45,007 --> 00:02:47,000 from my talking head clip. 59 00:02:47,000 --> 00:02:50,002 Let's see how it did. 60 00:02:50,002 --> 00:02:52,009 All right, so you have a few Camtasia projects 61 00:02:52,009 --> 00:02:54,003 under your belt and you're looking 62 00:02:54,003 --> 00:02:56,002 to bump up your skill set. 63 00:02:56,002 --> 00:02:57,003 Not bad at all. 64 00:02:57,003 --> 00:02:59,007 But I can do even more. 65 00:02:59,007 --> 00:03:02,007 The first thing I'm going to try here is to bump up the amount. 66 00:03:02,007 --> 00:03:05,007 Let's take it all the way up and see what happens. 67 00:03:05,007 --> 00:03:08,004 Bump it all the way up to 48. 68 00:03:08,004 --> 00:03:12,004 I'm Corbin, I've used Camtasia to help create thousands 69 00:03:12,004 --> 00:03:14,002 of informational marketing. 70 00:03:14,002 --> 00:03:16,004 Now I don't hear any noise at all 71 00:03:16,004 --> 00:03:19,006 but I can still hear a little bit of change in my voice. 72 00:03:19,006 --> 00:03:22,003 So I'm going to just back that off a bit, 73 00:03:22,003 --> 00:03:24,009 let's say to 35 and one more time. 74 00:03:24,009 --> 00:03:28,001 Instructional videos including this one. 75 00:03:28,001 --> 00:03:28,009 That's pretty good. 76 00:03:28,009 --> 00:03:32,002 Additionally, I can mess with the sensitivity here. 77 00:03:32,002 --> 00:03:34,001 Let's pop that up to say 10. 78 00:03:34,001 --> 00:03:35,008 I'm going to show you some of the technique 79 00:03:35,008 --> 00:03:37,006 and I can hear a little bit of wonkiness, 80 00:03:37,006 --> 00:03:39,005 so I'm just going to back that down to five. 81 00:03:39,005 --> 00:03:41,003 That I use every day. 82 00:03:41,003 --> 00:03:43,006 And in fact, that's really not doing anything. 83 00:03:43,006 --> 00:03:44,008 Just leave it at zero. 84 00:03:44,008 --> 00:03:47,000 You can take away the ideas that work-- 85 00:03:47,000 --> 00:03:49,002 Now your results of course are going to vary 86 00:03:49,002 --> 00:03:50,004 from clip to clip. 87 00:03:50,004 --> 00:03:53,000 You want to experiment until you get the most 88 00:03:53,000 --> 00:03:54,004 out of the noise removal 89 00:03:54,004 --> 00:03:58,004 without adversely affecting the vocals. 90 00:03:58,004 --> 00:04:02,004 Now, if you don't have a room tone sample, all is not lost. 91 00:04:02,004 --> 00:04:05,007 You can still of course apply the noise removal effect 92 00:04:05,007 --> 00:04:08,001 and Camtasia will do its best to determine 93 00:04:08,001 --> 00:04:10,002 what is and is not noise 94 00:04:10,002 --> 00:04:12,008 using the gaps in the audio. 95 00:04:12,008 --> 00:04:16,003 However, providing Camtasia with a room tone sample 96 00:04:16,003 --> 00:04:19,007 will produce the best results when taking advantage 97 00:04:19,007 --> 00:04:21,003 of the noise removal effect.