Personal computer,printer,and portable equipment noise in classrooms

摘要

The American National Standard on classroom acoustics -ANSI S 12.60-2002-presents criteria for background noise in classrooms.The background noise criteria in ANSI S 12.60 do not apply to the noise from portable or permanent built-in equipment used during the course of instruction,such as computers,audiovisual equipment,and printers.ANSI S 12.60 provides general guidance on the selection and installation of such equipment in an Annex;however,the standard does not present specific recommendations to ensure that these products meet classroom acoustical needs when purchased by schools.