A limiter is an audio effect that allows the signals below an established level or input power to remain untouched. It does so while weakening the peaks of the stronger audio signals. A Very Brief History To begin with, limiters date back to many decades ago, when the first audio processing tool appeared. This audio…
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A noise gate is an audio effect. Some consider it an expander for its slope of -∞. This feature can mute the signal that falls below the selected threshold. This noise effect gates out the noise by setting the threshold just above the level of the background noise. As a result, the gate opens only…
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A transient shaper, also known as a transient designer or modulator, is a type of audio processor that is very similar to a compressor. In short, it is a level-independent dynamic processor. To understand this, one must learn about transients. A transient is a high amplitude and short-duration sound placed at the beginning of a…
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A multi-band compressor is a group of several compressors. Each of these operates on one section of the full audio spectrum. Before delving into its specifics, you must know that compressors are the most important tools in the modern audio era. In short, a compressor is an audio tool that helps alter the dynamic range…
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Overdrive is a gain-based effect commonly mistaken with a distortion effect. It occurs when input gain surpasses the capacity of a device to handle the amount of gain it receives. When the device in question is a tube, the smooth waveform that goes into the device gets clipped. Therefore, we perceive this clipping as a…
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A Wah Wah effect occurs by continually bringing in and out of play treble frequencies while a note is sustained. It is a modification of the vowel quality of a tone; that is, a type of spectral glide. Its name is an onomatopoeia: it mimics the sound it produces. Wah Wah Effect: Its History The…
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A high pass filter (HPF) is a filter that tempers all the frequencies that are below the certain cutoff frequency and allows the frequencies that are above to pass. This filter can appear at many stages of the signal path. Such states are the microphone, the amplifier, the equalizer, or the plugin, for example. In…
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In essence, a low pass filter, also known as LPF, is a filter that lessens or eradicates all the frequencies that are higher than the cutoff frequency. People also know it as a high-cut filter or treble-cut filter. Regardless of the name, it works by passing the low-frequency signals and blocking the high-frequency ones. Low…
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A comb filter is an effect that occurs when you join two different audio signals together with a tiny delay between them. Funny story: the term originated because its magnitude response looks like the teeth of a comb. It is very common when microphones pick up the same audio signal and end at the same…
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The term Band-Pass Filter (BPF) describes the filtering process. BPF refers to a type of filter circuit that passes frequencies within a specific range. In addition, it weakens signals that fall out of that range. In relation to this, a bandpass signal is a one that involves a band of frequencies not joined to a…
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