Category: Knowledge

Multi-Band Compressor

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

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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Wah Wah Effect

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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High Pass Filter

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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Low Pass Filter

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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Comb Filter

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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Band-Pass Filter

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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Shelving Equalizer

In a shelving equalizer, all frequencies are boosted or cut by the same amount. But, to understand this, let’s first get back to basics. One describes equalizers in reference to a flat response curve. This means that a system or a piece of equipment responds evenly to all frequencies within a specific range. The range…
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Dynamic Equalizer

A dynamic equalizer is a type of conventional parametric equalizer. It is dynamic because the static gain of the filter is exchanged by a dynamic control loop, while the frequency and quality (Q) remain the same. This equalizer can have level-dependent parameters or temporal ones. Examples of level-dependent parameters are over/under and threshold and range,…
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Pseudo-Stereo

Pseudo-stereo audio processing techniques produce a wider special impression while generating an illusion of multi-directional audible perspective. For this reason, these techniques create two stereo channels from a single one. For this reason, people also call it simulated stereo. In addition to what we just described, you can use pseudo-stereo as an audio manipulation tool…
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