* Measurement: This refers to the process of quantifying something, often using a specific unit.
* Loudness: This is a subjective perception of how intense a sound is, determined by the listener.
Here's why the phrase is tricky:
* Loudness is subjective: What one person perceives as "loud" might be different for another. Factors like age, hearing sensitivity, and even mood can influence loudness perception.
* We measure sound intensity, not loudness: While we can't directly measure how loud something sounds to a person, we can measure the intensity of a sound using units like decibels (dB).
So, instead of "measurement loudness," we should talk about:
* Sound intensity measurement: This refers to using tools like sound level meters to quantify the energy of sound waves in decibels.
* Loudness perception: This is the subjective experience of how loud a sound seems to a listener.
Here's an example:
A sound level meter might measure a concert at 100 dB. This is a measurement of sound intensity. However, how "loud" that concert feels depends on the individual listener. Some might find it incredibly loud and overwhelming, while others might find it just right.
In summary: While we can't directly measure "loudness," we can measure sound intensity, which is a physical property related to how loud we perceive a sound.