Calculation of the Sound Field in a Room

Room Length m Width m Height m

Empty Evenly Fitted Floor Layer Ceiling Fitted Fully Fitted

INPUT SECTION
                              Near Floor Fittings Height of Fittings: (m) Type of Fittings:
                              Near Ceiling Fittings Height of Fittings: (m) Type of Fittings:

                              Surfaces  Wall 1: Wall 2: Wall 3:
                                               Wall 4: Floor:      Ceiling:

Optional Section for Noise Control: Tiles and Barriers must be rectangular
Tiles are located on a room surface and must have a set of absorption coefficients
Barriers must be parallel to a room surface and are assumed totally absorptive
Rectangles are defined by their opposite corner coordinates
                                                                                                                  Absorption Coefficients Min 0-> Max 1
              X1          Y1          Z1          X2          Y2          Z2          125         250          500         1000        2000    4000 Hz
Rect 1
Rect 2
Rect 3
Rect 4
Rect 5
Rect 6

Omni-source Normal Voice Raised Voice Loud Voice Shout Directions

No Background Noise 1 Student 2 Students 4 Students 8 Students 16 Students 32 Students 64 Students 128 Students

Sound Power Level: Usually 30dB->130dB

X Y Z 125 250 500 1000 2000 4000 Hz

Source 1 dB
Background Noise Level dB
Sound Level Results Section: Fill in Required Receiver Coordinates