BS 4142: 2014 advises that certain acoustic features can increase the significance of impact of a sound and that where such features are present a character correction should be added to the Specific Sound to obtain the Rating Level. The Standard advises that this can be approached in three ways a) Subjective Method b) Objective Method for Tonality and c) Reference Method.

A number of commercial sounds have been recorded and these will be presented to the audience who will be asked to submit their subjective assessments of tonality and impulsiveness in accordance with Section 9.2 of BS 4142:2014.

The Subjective, Objective and Reference Methods will be explained during the course of the meeting. However, being familiar with Section 9.2 of the Standard (which explains the Subjective Method) prior to the meeting is highly recommended.  

The results of the Subjective Assessments for each sound will be compared to the results of the Objective and Reference Methods. The comparison will be done statistically and the presenter will not be making individuals’ assessments public. 

The event is free to members and the general public. As numbers are limited, please register for this event at:

https://www.eventbrite.co.uk/e/bs-4142-objective-reference-methods-for-tonal-impulsive-noise-tickets-34715526073

Advance registration for this event is required and we expect this event to be full. If you register but later realise that you cannot make it, please let us know as soon as possible so that we can offer the place to someone else.

Registration will close 48 hours before the event. CPD certification is offered for attendance at this event.  A hearing loop can be made available at this event and this can be requested when registering for the event on the Eventbrite website.

After the meeting, all attendees will be invited to adjourn to a public house or local curry house to continue the discussion. The exact location will be announced on the night.

If you have any queries please contact Dan Saunders, Clarke Saunders Associates at dsaunders@clarkesaunders.com or 01962 872130.