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What is a Flanger?

Hey there! A flanger is one of those unique effects that can be utilized to give a vocal or instrument that type of "swoosh" sound, and can be processed in a variety of creative ways. Read along with today's blog to better know what a flanger is and how to use it.

Waves MetaFlanger

A flanger is a type of audio effect that creates a distinctive "swooshing" or "jet plane" sound by mixing two identical audio signals, one of which is delayed by a small amount and then modulated in pitch. This creates a sweeping sound that is often described as a "whoosh" or a "swoosh."

The basic operation of a flanger involves taking an audio signal and splitting it into two identical signals. One of the signals is then delayed by a small amount, usually in the range of a few milliseconds to a few tens of milliseconds. The delayed signal is then modulated in pitch using an LFO (low-frequency oscillator) that produces a periodic variation in frequency. The modulated signal is then mixed with the original signal, resulting in the distinctive sweeping sound that is characteristic of a flanger.

Flangers are often used in music production and sound design to create unique and interesting sounds. They can be used to add movement and dimension to a sound, or to create psychedelic or spacey effects. Flangers are particularly effective on guitars, where they can be used to create a distinctive "swirling" sound that is often heard in 80s rock music.

Flangers can also be used to create a doubling effect, where the delayed signal is mixed with the original signal in a way that creates the impression of multiple instruments playing the same part. This effect is commonly used in pop and rock music to create a fuller and more layered sound.

In addition to the basic operation described above, flangers may also include various controls and parameters that allow the user to fine-tune the effect. These controls may include things like the depth and rate of the LFO modulation, the amount of feedback or resonance, and the delay time.

In summary, a flanger is a type of audio effect that creates a sweeping, swirling sound by mixing two identical signals, one of which is delayed and modulated in pitch. Flangers are often used in music production and sound design to create unique and interesting sounds, add movement and dimension to a sound, or create doubling effects. Flangers can be fine-tuned using various controls and parameters to achieve the desired effect.

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