• 1/N Octave Filters
• Sound Power
• Sound Intensity
• Sound Level Meter
• Transmission Loss
• Room Acoustics
• Two Microphone Impedance Tubes
  

DATS Acoustic Analysis Suite

The 1/N Octave filters can be used with either time signals or narrow band spectral data.

The Sound Power Analysis scripted measurement procedure allows the measurement of sound power using either sound intensity probes or microphones according to the international standards ISO3744, ISO3745 and ISO9614-1.

The Sound Level Meter module provides a number of analyses that mimic the operation of a simple sound level meter.

The Transmission Loss modules are automated measurement and analysis procedures for determining the effectiveness of either panels for room acoustics or pipes for exhaust mufflers.

The Room Acoustics Reverberation Time T60 and Total Absorption modules use the noise source switch-off method. The T60 determination is based on a practical measurement with a decay in the room of less than 60dB.

The Two-Microphone Impedance Measurement Tube, (B&K Type 4206), is a completely scripted measurement procedure for guiding the user in making an accurate measurement of the acoustic properties of small material samples, it complies with ISO10534 and ANSI E1050.

Software includes...

Sound Quality Metrics

AI Versus Time
Loudness (Zwicker) (ISO532B)
Loudness by Stevens (ISO532A)
Loudness Versus Time
Nth Octave RMS Versus Time
Speech Articulation Index (ANSI S3.5 1969)
Speech Articulation Index (Vehicle Biased)
Composite Rating Performance Value
High Frequency Factor
Preferred Speech Interference Level
Spectral Balance

Sound Power

Sound Power from Sound Pressure (ISO3744, ISO3745)
Sound Power from Sound Intensity (ISO9614-1)

Sound Level Meter

rms S time constant
rms F time constant
rms I time constant (peak)
rms selectable time constant
Leq with S time constant
Leq with F time constant
Leq with I time constant (peak)
Leq with selectable time constant
LN Measure with S time constant
LN Measure with F time constant
LN Measure with selectable time constant
SEL with S time constant
SEL with F time constant
SEL with selectable time constant

Misc

Nth Octave
Nth Octave RMS Output
Nth Octave Filter
Third Octave
Microphone Calibration
Spectrum Weighting (A,B,C,D)
Sound Intensity
Difference dB Signals
A, B or C Weight Time Signal
Impedance Tube Reflection
Impedance Tube Absorption
Reverberation Times
Transmission Loss through panels
Transmission Loss through pipes