Loudness

From Health Encyclopedia

Contents 1 Broader Terms 2 Related Terms 3 Scope Note 4 Facts (generated by robot; please edit if you find it inaccurate)

Broader Terms

sound

Related Terms

auditory threshold

Scope Note

sound intensity; the relative extent to which a sound can be heard.

Facts (generated by robot; please edit if you find it inaccurate)

• The perceived loudness is NOT proportional to the intensity of the sound.
• Even for fairly simple sounds composed of sinusoidal components (called COMPLEX TONEs), the measurement of loudness is very difficult; however, the Stevens method of loudness summation is perhaps the most useful.
• What is loudness? Loudness is the way in which we perceive amplitude.
• Perception of Loudness (20dB = 4x) Interestingly, our perception of loudness is not the same as sound pressure level.
• In acoustics, loudness is a subjective measure of the sound pressure.

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