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Category: Noise

Loudness Adaption – The Louder the Better?

By Emil Ærenlund Posted on January 2, 2026 Posted in Noise

I recently fell over a page in “An introduction to the psychology of hearing” by Brian C J Moore “In fact, since 1972 sound levels have tended to increase, as amplifiers have become more powerful and loudspeakers more efficient. Nowadays …

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Sound Power Level and Sound Pressure Level

By Emil Ærenlund Posted on January 2, 2026 Posted in Noise

You have probably heard of ‘Sound Pressure Level’. Often related to what your ears can hear and is most often quantified in decibels. Perhaps you also know that it can be A-weighted to our own hearing? So far so good, …

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Sound Leakage

By Emil Ærenlund Posted on August 22, 2024 Posted in Flanking sound, Noise, Sound Insulation

Be aware of acoustic weakness and help avoid poor Sound reduction performance! In walls we often find electrical outlets. If these outlets are placed right up against eachother as shown below, they may result in a weakness in the wall …

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How noisy is your home?

By Emil Ærenlund Posted on August 22, 2024 Posted in Noise

Do you ever think about how noisy your home really is? With an increase in electrical appliances in our homes, it can be hard to escape the noise inferno. The kitchen will most typically be the most noisy room in …

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Facade sound reduction and weakest link

By Emil Ærenlund Posted on August 22, 2024 Posted in Noise, Sound Insulation

Quick tip: Facades – When designing for optimal noise reduction and sufficient acoustic quality, remember to look for the weakest link in facades. Especially if the facade is towards a noisy Road.The weakest link, typically being the windows, will very …

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‘Noise Thermometer’

By Emil Ærenlund Posted on April 29, 2024 Posted in Noise

You have probably seen it sketched out before, a ‘noise thermometer!’.Allow me to give you my version, The Three P’s… my best try at making it memorable Joking aside, noise levels is a serious topic, especially the understanding of the …

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Noisy Brew at the office?

By Emil Ærenlund Posted on April 29, 2024 Posted in Noise, Room Acoustics

Does Coffee machines and open Office spaces mix? It depends on the overall noiselevel and peak noise value of the machine, as Well as the distance to the nearest workstations. One Can argue that the slow drip and humm of …

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Poor Acoustic quality

By Emil Ærenlund Posted on April 29, 2024 Posted in Building Acoustics, Noise

Our environments today are often bustling with noise and the significance of sufficient sound insulation cannot be overstated. Poor sound insulation and loud impact noise not only disrupt productivity but can also affect our overall well-being and disturbing our sleep …

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The Right tool for the job

By Emil Ærenlund Posted on January 15, 2024 Posted in Noise

It all starts with the right tool. By far, the most important tool for the acoustician is the Sound Level Meter (SLM). As acousticians dedicated to understanding and managing sound environments, we rely heavily on the precision and accuracy of …

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Flanking through Ducts

By Emil Ærenlund Posted on January 14, 2024 Posted in Noise

Common Workplace Noise Challenge: Flanking Sound via Ventilation Systems For optimal workplace acoustics, poor planning before the construction phase can often be a major culprit. Addressing the issue of sound transmission through ventilation ducts at the early stages of design …

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