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 0⁰ is to the right

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 Source 2 dB Source 3 dB Source 4 dB Source 5 dB Source 6 dB Source 7 dB Source 8 dB Source 9 dB Source 10 dB Source 11 dB Source 12 dB Source 13 dB Source 14 dB Source 15 dB Source 16 dB Source 17 dB Source 18 dB
Background Noise Level dB
Sound Level Results Section: Fill in Required Receiver Coordinates