DASYLab Modules for Sound Level and Sound Power Measurement
(EN 60651 and EN 60804).
Sound Level Measurement Module
The sound level measurement module has the following features:
- Time weighting: fast, slow, impulse, leq following DIN IEC 651 and
DIN IEC 804.
- Easy microphone calibration with a pistonphone; in calibration mode,
DasyLAB 6 detects the channel/microphone to calibrate and calculates
the correct values.
- The correction values are stored with the worksheet.
- The module has 16 inputs and 16 outputs for the weightedand dB scaled
sound levels.
- We recommend a 16 bit AD-converter with microphonepower supply.
- A hardware dB A weighting is nice to have, but not necessary.
- Simultaneous Sample and Hold is absolutely necessary for sound pressure
measurement.
Sound Power Measurement Module
The sound power measurement module can calculate sound power
for a maximum of 16 input channels (from the sound level measurement module)
1 output channel, switchable to:
- Measurement surface sound power.
- Sound power level (SPL) of all active channels.The module properties
allow you to set the four corrective values in dB or use the "wizards"
to determine them:
- K0: Correction value for air pressure and temperature. Direct
input of the dB value or pressure and temperature. (Only necessary
for class 1 measurements according to DIN 45 635.)
- K1: Correction value for extraneous noise correction (back-ground
noise, signal-to-noise-ratio). Direct input of thedB value or taken
from last measurement.
- K2: Correction value for environment feedback (reflections).Direct
input of the dB value or input of the room's metrics:– volume
– reverberation time ...
- Ls: Correction value for for the enveloping surface. Direct input
of the dB value or input of the surface metrics (guided with graphics).
Like DIN (2a, 2c, b) – Spherical, hemisphere, quarter globe
– Cuboids (detached, at a wall, at a wall and ceiling)
The module works according the following standards:DIN 45 635, DIN
EN 23 741, ISO 3741, DIN EN 23 742, ISO 3742, DIN EN 23 744, EN ISO
3744, DIN EN 21 680, ISO 6395
(Source: Roga Instruments)
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