Only by attenuating this level are you able to control the level of the audio. By default, audio runs through each channel at maximum level (with the track fader set to 0dB). The tracks in your DAW work similar to how amps work. When you turn up the volume on an amp, you’re actually reducing the restriction applied to the power. An attenuator acts as a volume control by restricting the amp from playing at full power. The only way to control this is by applying an attenuator. In the world of electronics, an amp with no volume control will play at full power all the time. Values that are smaller than the maximum are always negative values. dBFS is a unit of measurement for amplitude in digital systems that have a defined maximum peak level (like your DAW). The important thing to take away from this example is that the dB level of a sound is not what’s solely important in your ability to perceive it the ratio of the sound to the noise floor is equally as important this ratio is referred to as dynamic range.įor the rest of this guide, I’ll be talking about dBFS which stands for decibel units relative to full scale. The only way for you to hear them is if they yell louder than the people in the crowd. If your friend speaks to you at a normal level, their voice will be masked by the people yelling. Now imagine that you’re having a conversation with your friend but in a giant crowd of people who are yelling (acting as the noise floor). There may be some background noise such as an air conditioner (acting as the noise floor), but you’ll still be able to easily hear your friend. Let’s say you’re having a conversation with your friend in a quiet library, sitting a couple feet apart. When trying to distinguish a sound from its surroundings, a phenomenon called masking may occur, significantly increasing your minimum hearing threshold. View an interactive decibel noise level chart.
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