Sound exposure level - Revision history

Designing Buildings at 07:14, 19 February 2025

2025-02-19T07:14:05Z

← Older revision		Revision as of 07:14, 19 February 2025
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	The sound power level (Lw) of a source is a measurement of the total acoustic power it radiates. The sound power level is an intrinsic characteristic of a source (analogous to its volume or mass), which is not affected by the environment within which the source is located.		The sound power level (Lw) of a source is a measurement of the total acoustic power it radiates. The sound power level is an intrinsic characteristic of a source (analogous to its volume or mass), which is not affected by the environment within which the source is located.

−	Sound pressure level is the parameter by which sound levels are measured in air. It is measured in decibels. The threshold of hearing has been set at 0dB, while the threshold of pain is approximately 120dB. Normal speech is approximately 60dB at a distance of 1 metre and a change of 3dB in a time varying sound signal is commonly regarded as being just detectable. A change of 10dB is subjectively twice, or half, as loud. (See also Equivalent continuous sound pressure level)	+	Sound pressure level is the parameter by which sound levels are measured in air. It is measured in decibels. The threshold of hearing has been set at 0dB, while the threshold of pain is approximately 120dB. Normal speech is approximately 60dB at a distance of 1 metre and a change of 3dB in a time varying sound signal is commonly regarded as being just detectable. A change of 10dB is subjectively twice, or half, as loud. (See also Equivalent continuous sound pressure level) Ref The HS2 London-West Midlands Environmental Statement, Glossary of terms and list of abbreviations, DETR 2013.

−	~~Ref The HS2 London-West Midlands Environmental Statement, Glossary~~ of ~~terms and list of abbreviations~~, ~~DETR~~ 2013.	+	NB Approved document E: Resistance to the passage of sound, 2003 edition incorporating 2004, 2010, 2013 and 2015 amendments, defines sound pressure level as: ‘A quantity related to the physical intensity of a sound.’

	See also: Sound power.		See also: Sound power.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	= Related articles on Designing Buildings =

	* Airborne sound.		* Airborne sound.

Designing Buildings at 10:26, 23 March 2021

2021-03-23T10:26:09Z

← Older revision		Revision as of 10:26, 23 March 2021
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	* Approved Document E.		* Approved Document E.
	* Audio frequency.		* Audio frequency.
		+	* Atmospheric pressure.
	* Building acoustics.		* Building acoustics.
	* Control of Noise at Work Regulations 2005.		* Control of Noise at Work Regulations 2005.

Designing Buildings at 06:44, 20 February 2021

2021-02-20T06:44:57Z

← Older revision		Revision as of 06:44, 20 February 2021
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	* Structure-borne sound.		* Structure-borne sound.

−	[[Category:~~Standards_/_measurements~~]] [[Category:DCN_Standard]]	+	[[Category:DCN_Definition]] [[Category:DCN_Standard]] [[Category:Definitions]] [[Category:Standards_/_measurements]]

Designing Buildings at 06:20, 17 December 2019

2019-12-17T06:20:11Z

← Older revision		Revision as of 06:20, 17 December 2019
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	Ref The HS2 London-West Midlands Environmental Statement, Glossary of terms and list of abbreviations, DETR 2013.		Ref The HS2 London-West Midlands Environmental Statement, Glossary of terms and list of abbreviations, DETR 2013.
		+
		+	See also: Sound power.

	= Related articles on Designing Buildings Wiki =		= Related articles on Designing Buildings Wiki =
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	* Equivalent continuous sound pressure level.		* Equivalent continuous sound pressure level.
	* Impact sound.		* Impact sound.
		+	* Sound.
	* Sound absorption.		* Sound absorption.
	* Sound frequency.		* Sound frequency.
	* Sound v noise.		* Sound v noise.
−	* Sound.	+	* Sound power.
	* Structure-borne sound.		* Structure-borne sound.

−	[[Category:Standards_/_measurements]]	+	[[Category:Standards_/_measurements]] [[Category:DCN_Standard]]

Designing Buildings at 14:29, 21 January 2019

2019-01-21T14:29:02Z

← Older revision		Revision as of 14:29, 21 January 2019
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	The sound power level (Lw) of a source is a measurement of the total acoustic power it radiates. The sound power level is an intrinsic characteristic of a source (analogous to its volume or mass), which is not affected by the environment within which the source is located.		The sound power level (Lw) of a source is a measurement of the total acoustic power it radiates. The sound power level is an intrinsic characteristic of a source (analogous to its volume or mass), which is not affected by the environment within which the source is located.

−	Sound pressure level is the parameter by which sound levels are measured in air. It is measured in decibels. The threshold of hearing has been set at 0dB, while the threshold of pain is approximately 120dB. Normal speech is approximately 60dB at a distance of 1 metre and a change of 3dB in a time varying sound signal is commonly regarded as being just detectable. A change of 10dB is subjectively twice, or half, as loud.	+	Sound pressure level is the parameter by which sound levels are measured in air. It is measured in decibels. The threshold of hearing has been set at 0dB, while the threshold of pain is approximately 120dB. Normal speech is approximately 60dB at a distance of 1 metre and a change of 3dB in a time varying sound signal is commonly regarded as being just detectable. A change of 10dB is subjectively twice, or half, as loud. (See also Equivalent continuous sound pressure level)

	Ref The HS2 London-West Midlands Environmental Statement, Glossary of terms and list of abbreviations, DETR 2013.		Ref The HS2 London-West Midlands Environmental Statement, Glossary of terms and list of abbreviations, DETR 2013.

Designing Buildings: Created page with "Sound exposure level is the sound level at a receptor which, if maintained at a constant level for a period of one second, would have the same amount of energy as a given event (..."

2019-01-21T14:24:57Z

Created page with "Sound exposure level is the sound level at a receptor which, if maintained at a constant level for a period of one second, would have the same amount of energy as a given event (..."

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Sound exposure level is the sound level at a receptor which, if maintained at a constant level for a period of one second, would have the same amount of energy as a given event (of any duration) at the same receptor.

The sound power level (Lw) of a source is a measurement of the total acoustic power it radiates. The sound power level is an intrinsic characteristic of a source (analogous to its volume or mass), which is not affected by the environment within which the source is located.

Sound pressure level is the parameter by which sound levels are measured in air. It is measured in decibels. The threshold of hearing has been set at 0dB, while the threshold of pain is approximately 120dB. Normal speech is approximately 60dB at a distance of 1 metre and a change of 3dB in a time varying sound signal is commonly regarded as being just detectable. A change of 10dB is subjectively twice, or half, as loud.

Ref The HS2 London-West Midlands Environmental Statement, Glossary of terms and list of abbreviations, DETR 2013.

= Related articles on Designing Buildings Wiki =

* Airborne sound.
* Approved Document E.
* Audio frequency.
* Building acoustics.
* Control of Noise at Work Regulations 2005.
* Decibel.
* Equivalent continuous sound pressure level.
* Impact sound.
* Sound absorption.
* Sound frequency.
* Sound v noise.
* Sound.
* Structure-borne sound.

[[Category:Standards_/_measurements]]