Records Release Board

Reading room open · Readers present: 1

SR/96/006 Form AC/7: room reference undated Pad of blank forms Condition: unused

A pad of these forms was found in the acoustics office, all of them blank. The Board permits readers to complete one. Recording devices are not otherwise allowed in the reading room.

Acoustics office

FORM AC/7  ·  ROOM REFERENCE

  1. Complete one form for each room.
  2. Leave the room as it is normally occupied. Do not clear it. An empty room is of no use as a reference.
  3. Do not speak while the measurement is taken. Do not hold your breath either; breathing is part of the room.
  4. The measurement takes eleven seconds.
Date and time
Occupants
Floor (L90)
Loudest (L10)
Readings under the floor
Remarks

Ready. The microphone is used on this page only, for eleven seconds, and nothing is kept.

Floor established

Your room has a floor.

The acoustics office thanks you for providing it.

What this page does: with your permission it listens through your microphone for eleven seconds, works out how loud your room is at its quietest and at its loudest, and writes those numbers on the form. Nothing is recorded, stored or sent anywhere. When the eleven seconds are up the microphone is released. Refresh the page and the form is blank again.