Impulse noise

December 1, 2025

12/1/25

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Nyquist Team

A sudden crack, a shot, or a press impact – these are sounds that last only fractions of a second but carry enormous energy. Impulsive noise poses a particular measurement challenge and is one of the most dangerous enemies of our hearing.

Professional Definition

Noise consisting of one or more impulsive sounds.

Characterized by a rapid increase in sound pressure level in a very short time (usually less than 1 second). Standard averaged RMS measurements are not sufficient for assessing such phenomena; peak values (Lpeak) must be studied. Such a signal has a wide frequency spectrum and great dynamics of change.

Acoustics in Simple Words

Let's compare continuous noise (e.g., fan noise) to a strong stream of water from a garden hose – you feel a constant pressure. Impulsive noise is like a water hammer or a sudden splash from a bucket. Although it lasts a short time, the force of the impact is powerful at that moment. Our ear has a natural defense mechanism (stapedius reflex), but with impulsive noise (e.g., a gunshot), the sound is so quick that this mechanism cannot react in time, risking immediate injury.

Summary

Impulsive noise is a short-lived, violent acoustic event of high amplitude. Due to its nature, it is more harmful to the hearing organ than steady noise at an equivalent energy level.

Nyquist Team

The Nyquist team is a group of enthusiasts in acoustics, design, and technology who combine engineering knowledge with aesthetic sensitivity every day. We create solutions that improve acoustic comfort and give spaces a unique character. On the blog, we share our experiences, knowledge, and inspirations drawn from our daily work on projects carried out across Poland and abroad. We believe that good acoustics is not just a technique – it’s a way of creating spaces where one simply enjoys being.

Nyquist Team

The Nyquist team is a group of enthusiasts in acoustics, design, and technology who combine engineering knowledge with aesthetic sensitivity every day. We create solutions that improve acoustic comfort and give spaces a unique character. On the blog, we share our experiences, knowledge, and inspirations drawn from our daily work on projects carried out across Poland and abroad. We believe that good acoustics is not just a technique – it’s a way of creating spaces where one simply enjoys being.

Nyquist Team

The Nyquist team is a group of enthusiasts in acoustics, design, and technology who combine engineering knowledge with aesthetic sensitivity every day. We create solutions that improve acoustic comfort and give spaces a unique character. On the blog, we share our experiences, knowledge, and inspirations drawn from our daily work on projects carried out across Poland and abroad. We believe that good acoustics is not just a technique – it’s a way of creating spaces where one simply enjoys being.

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