![]() It means that compression can be applied instantly or with a delay. Knee is a parameter that controls the compressor’s response to the signal crossing the threshold. For instance, for compressing 4dB signals down to 1dB, set the Ratio value at 4 (4:1). In other words, this is the parameter that defines how much quieter the unwanted sounds will be after gating. Ratio controls compression applied to the background noise. Use it carefully and listen to the result. This value defines how drastic the signal reduction will be. For instance, if you’re recording an electric guitar, you should set a higher value to create a natural-sounding audio decay. Change its value based on the sound type you’re working with. Release defines how fast the gate closes after opening. It is recommended to set it at a low value for percussive sounds and higher values (10 ms or more) for other types of sounds. The higher the attack value is, the slower the gate will be opening. Attack is the parameter defining how fast the gate opens. The higher the threshold value is, the louder must be the sound to open the gate. You should set it based on how loud the background noise is. Threshold is the decibel level at which the gate opens. To apply all these settings, you’ll be using the following parameters: The Gate filter allows you to control when the “gate” opens and closes, how fast it opens and closes, and what kind of sounds get in. ![]() Time to go back to the gate metaphor we described earlier. If you can’t find the Properties window, right-click on the Gate filter on the timeline and select “Properties”. It contains all the controls you need to set the correct noise removal parameters. When you do that, the Properties window will slide in from the right side. Once you’ve uploaded your footage to VSDC, right-click on it and select Audio effects - Filters - Gate. How to remove background noise from video in VSDC using a gating filter With that said, let’s see how VSDC Free Video Editor helps you with that challenge. Be prepared to spend some time toggling controls, tweaking the settings, and literally playing it by ear. Regardless of the software you’re using, you’ll have to do it manually. Keep in mind that even with the same type of background noise, there is no way to click on a button and magically remove all the unwanted sounds. ![]() However, if you have real cacophony in the background consisting of both quiet and loud sounds, you might have to apply both the Noise gate and the Median filter. Whenever the software detects sounds that fall below that threshold, it automatically makes them quieter.įans, ACs, loud PC processors – all these humming, hissing, and buzzing background noises are indeed typically lower than your voice, and that’s why gates are so efficient at removing them. Think of the last video you’ve recorded: its average volume – whether it’s your voice or the sound of music – remains at approximately the same level throughout the entire clip, right? That level is called threshold. However, their parameters must be set individually for each video, and if you want to apply the correct settings, you should understand how noise gates work. ![]() You should think of them as real gates or channels that allow certain sounds to pass through and prevent other sounds from getting in. Noise gates are the most common type of background noise removers. How does a noise gate help remove background noise from a video? For loud sounds like pops and clicks, you’ll want to use a so-called “Median” filter.įeel free to watch this video tutorial and read the details below. Gates are particularly efficient at removing noises produced by a working air conditioner, a fan, a loud computer, or any other type of unwanted low-frequency sounds in your video. To remove such background noise from a video, you’ll need to apply an audio filter called “Audio gate” (often referred to as “Noise gate” or “Gate”). In this article, we’ll focus on the first category because it’s more common and trickier. Luckily, there is an easy solution, and it’s available right in the free version of VSDC Video Editor.īackground noises can be broadly divided into two categories: quiet constant sounds and loud sudden sounds. We know that because we struggle with background noises every week while preparing video tutorials for our YouTube channel. Unless you’re recording videos in a professional studio, it can be difficult to avoid background noises.
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