VA-Lab BASIC

Introduction

VA-Lab is acoustical measurement software which has module designed according to ISO standard requirements, such as Sound Power, Sound Insulation, and Impedance Measurements.

The VA-Lab function modules include:

  • BASIC: FFT based signal analysis for vibration and acoustics

  • ENV: Sound pressure level and environment noise measurements

  • IMP: Two and four microphone methods for absorption and TL measurements in Impedance tube according to ISO10534

  • SI: Sound intensity measurements

  • REV: Reverberation time measurements according to ISO3382   

  • TL: Sound Insulation measurements for building material according to ISO 140.

  • POWER: Sound Power Measurements according to ISO3745.

  • AUDIO: Audio testing by using stepped sweeping, frequency response and THD are tested at one time.

Main features of VA-Lab BASIC:

  • FFT Analysis: general signal analysis including FFT,CPS, Transfer Function, Coherence, Auto Correction, Cross Correction, Cepstrum, etc. Data can be captured and saved in real-time mode

  • 1/n Octave: general 1/n octave analysis for sound and vibration signals, n=1,3,6,9,12, 24

  • Calibration: user selection of sound or vibration calibration.  

  • Signal Generator: sine, square, triangle, sawtooth wave, white noise, pink noise, frequency sweep, multi-tone, tone burst, wavefile, etc.

    • Record: Wave file or time series signal record and play back

Specification

Specification
Input Channel 2
Input Channel Type ICCP◎ (4 mA)
Cross Talk > 60 dB
Frequency Response (Ref: 250 Hz, + 0.5 dB/-1.0 dB) 20 Hz ~ 20 kHz
Total Harmonic Distortion < 0.01%
Measurement Range (with MP201 and MA201 at 50mV/Pa sensitivity) 18 ~ 146 dBA x0.1: 58 ~ 146 dB; x1.0: 38 ~ 126 dB; x10: 18 ~ 106 dB
Input Connector BNC
A/D Converter 16bits
Max. Sampling Frequency 44.1k
Max. Input Voltage 2Vrms
Headphone output Standard 1/4’’ stereo output for headphone
Output Channel 2
Output Frequency Range 20 Hz ~ 20 kHz Achievable Sine, Pink, White noise.
Max Output Voltage 1Vrms
Power Requirement build-in re-charge battery or external 220V AC (4 hours battery life)
Temperature -10°C ~ +40°C
Humidity 0 ~ 98% RH
Size 300×200×50mm
Weight 2.3kg


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