Sound engineers use a psychoacoustic trick called the Haas effect to widen audio
Sound engineers create an immersive sense of space by utilizing the Haas effect, a psychoacoustic phenomenon that tricks the human brain into perceiving a wider stereo image through millisecond-long delays.
The Haas effect is a powerful tool used by music producers to create a 'wall of sound' without cluttering a mix. By duplicating an audio signal and delaying the second version by just 10 to 40 milliseconds, engineers trick the brain into perceiving the two sounds as a single, much wider source.
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