LAEQ,T - Revision history

Editor at 09:22, 18 April 2025

2025-04-18T09:22:41Z

← Older revision		Revision as of 09:22, 18 April 2025
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−	LAEQ (or LAeq) refers to Level A weighted Equivalent Continuous Sound Pressure and T refers to time, so it is a metric used in acoustics to quantify the average sound energy of a fluctuating noise over a specific time period. It represents the constant noise level that would produce the same sound energy over the same period as the actual fluctuating noise.It is often used in environmental noise standards and regulations, most recently in particular connected with the noise produced by air source heat pumps and wind turbines. See article ~~Heat~~ pump and wind turbine sound calculations ~~for permitted development installations~~, as well as sound, sound absorption, sound absorption coefficient, and noise v sound.	+	LAEQ (or LAeq) refers to Level A weighted Equivalent Continuous Sound Pressure and T refers to time, so it is a metric used in acoustics to quantify the average sound energy of a fluctuating noise over a specific time period. It represents the constant noise level that would produce the same sound energy over the same period as the actual fluctuating noise.It is often used in environmental noise standards and regulations, most recently in particular connected with the noise produced by air source heat pumps and wind turbines. See article equivalent continuous sound pressure level, heat pump and wind turbine sound calculations, as well as sound, sound absorption, sound absorption coefficient, and noise v sound.

	For the purposes of the [https://www.designingbuildings.co.uk/wiki/Consultation consultation] [https://assets.publishing.service.gov.uk/media/5a79b48140f0b642860da1c4/2105438.pdf Permitted development rights for small scale renewable and low carbon energy technologies and electric vehicle charging infrastructure] March 2012 LAEQ,T refers to 'The equivalent continuous sound level - the sound level of a notionally steady sound having the same energy as a fluctuating sound over a specified measurement period (T). LAEQ, 5 min – refers to the equivalent continuous sound level over a 5 minute period.' The consultation also notes that the term 'Could benefit from further clarification'.		For the purposes of the [https://www.designingbuildings.co.uk/wiki/Consultation consultation] [https://assets.publishing.service.gov.uk/media/5a79b48140f0b642860da1c4/2105438.pdf Permitted development rights for small scale renewable and low carbon energy technologies and electric vehicle charging infrastructure] March 2012 LAEQ,T refers to 'The equivalent continuous sound level - the sound level of a notionally steady sound having the same energy as a fluctuating sound over a specified measurement period (T). LAEQ, 5 min – refers to the equivalent continuous sound level over a 5 minute period.' The consultation also notes that the term 'Could benefit from further clarification'.

Editor at 09:17, 18 April 2025

2025-04-18T09:17:55Z

← Older revision		Revision as of 09:17, 18 April 2025
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−	For the purposes of the [https://www.designingbuildings.co.uk/wiki/Consultation consultation] [https://assets.publishing.service.gov.uk/media/5a79b48140f0b642860da1c4/2105438.pdf Permitted development rights for small scale renewable and low carbon energy technologies and electric vehicle charging infrastructure] March 2012 LAEQ,T refers to ~~'The equivalent continuous sound level -~~ the sound ~~level~~ of ~~a notionally steady sound having the same energy as~~ a fluctuating ~~sound~~ over a ~~specified measurement~~ period ~~(T)~~. ~~LAEQ, 5 min – refers to~~ the ~~equivalent continuous sound~~ level over ~~a 5 minute~~ period.~~' The consultation also notes that~~ the ~~term 'Could benefit from further clarification'~~.	+	LAEQ (or LAeq) refers to Level A weighted Equivalent Continuous Sound Pressure and T refers to time, so it is a metric used in acoustics to quantify the average sound energy of a fluctuating noise over a specific time period. It represents the constant noise level that would produce the same sound energy over the same period as the actual fluctuating noise.It is often used in environmental noise standards and regulations, most recently in particular connected with the noise produced by air source heat pumps and wind turbines. See article Heat pump and wind turbine sound calculations for permitted development installations, as well as sound, sound absorption, sound absorption coefficient, and noise v sound.

−	~~See also sound~~, sound ~~absorption,~~ sound ~~absorption coefficient~~, ~~and noise v~~ sound.	+	For the purposes of the [https://www.designingbuildings.co.uk/wiki/Consultation consultation] [https://assets.publishing.service.gov.uk/media/5a79b48140f0b642860da1c4/2105438.pdf Permitted development rights for small scale renewable and low carbon energy technologies and electric vehicle charging infrastructure] March 2012 LAEQ,T refers to 'The equivalent continuous sound level - the sound level of a notionally steady sound having the same energy as a fluctuating sound over a specified measurement period (T). LAEQ, 5 min – refers to the equivalent continuous sound level over a 5 minute period.' The consultation also notes that the term 'Could benefit from further clarification'.

	= Related articles on Designing Buildings =		= Related articles on Designing Buildings =

Editor at 09:12, 18 April 2025

2025-04-18T09:12:27Z

← Older revision		Revision as of 09:12, 18 April 2025
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	For the purposes of the [https://www.designingbuildings.co.uk/wiki/Consultation consultation] [https://assets.publishing.service.gov.uk/media/5a79b48140f0b642860da1c4/2105438.pdf Permitted development rights for small scale renewable and low carbon energy technologies and electric vehicle charging infrastructure] March 2012 LAEQ,T refers to 'The equivalent continuous sound level - the sound level of a notionally steady sound having the same energy as a fluctuating sound over a specified measurement period (T). LAEQ, 5 min – refers to the equivalent continuous sound level over a 5 minute period.' The consultation also notes that the term 'Could benefit from further clarification'.		For the purposes of the [https://www.designingbuildings.co.uk/wiki/Consultation consultation] [https://assets.publishing.service.gov.uk/media/5a79b48140f0b642860da1c4/2105438.pdf Permitted development rights for small scale renewable and low carbon energy technologies and electric vehicle charging infrastructure] March 2012 LAEQ,T refers to 'The equivalent continuous sound level - the sound level of a notionally steady sound having the same energy as a fluctuating sound over a specified measurement period (T). LAEQ, 5 min – refers to the equivalent continuous sound level over a 5 minute period.' The consultation also notes that the term 'Could benefit from further clarification'.

−	[[Category:~~Articles_needing_more_work~~]]	+	See also sound, sound absorption, sound absorption coefficient, and noise v sound.
		+
		+	= Related articles on Designing Buildings =
		+
		+	* Air source heat pumps.
		+	* Biomass.
		+	* BSRIA domestic hot water heat pumps testing.
		+	* Domestic building services compliance guide.
		+	* Feed-In tariff.
		+	* Ground source heat pump.
		+	* Making the most of renewable energy systems DG 531.
		+	* Microgeneration certification scheme
		+	* Micro CHP.
		+	* Micro grid.
		+	* Microgeneration.
		+	* Noise v sound.
		+	* Non-domestic building services compliance guide.
		+	* Pre-completion sound testing.
		+	* Renewable energy.
		+	* Renewable Heat Incentive.
		+	* Renewable Energy Consumer Code RECC.
		+	* Solar photovoltaics.
		+	* Solar thermal.
		+	* Sound.
		+	* Sound absorption.
		+	* Sound absorption coefficient.
		+	* Sound frequency.
		+	* UKAS accreditation for sound absorption testing.
		+	* Wind turbine.
		+
		+	[[Category:DCN_Definition]] [[Category:DCN_Project_Knowledge]] [[Category:DCN_Research,_Development_and_Innovation]] [[Category:DCN_Specification]] [[Category:Definitions]] [[Category:Theory]] [[Category:Standards_/_measurements]]

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2025-04-18T09:04:26Z

Created page with "For the purposes of the [https://www.designingbuildings.co.uk/wiki/Consultation consultation] [https://assets.publishing.service.gov.uk/media/5a79b48140f0b642860da1c4/2105438.pdf..."

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For the purposes of the [https://www.designingbuildings.co.uk/wiki/Consultation consultation] [https://assets.publishing.service.gov.uk/media/5a79b48140f0b642860da1c4/2105438.pdf Permitted development rights for small scale renewable and low carbon energy technologies and electric vehicle charging infrastructure] March 2012 LAEQ,T refers to 'The equivalent continuous sound level - the sound level of a notionally steady sound having the same energy as a fluctuating sound over a specified measurement period (T). LAEQ, 5 min – refers to the equivalent continuous sound level over a 5 minute period.' The consultation also notes that the term 'Could benefit from further clarification'.

[[Category:Articles_needing_more_work]]