The DAAS® Measurement System
  Not only applicable in the field of audio measurements, the DAAS® measurement system is a highly versatile and powerful PC-based solution to a broad range of commercial, scientific and engineering test and measurement applications.
Application areas include (audio) electronics, acoustics, building technology and vibration analysis.
As a strong point, the system offers competing performance and versatility to the more known measurement systems at a much more affordable price, making it an attractive alternative.
Built around state of the art high precision AD/DA converters and powerful, yet user friendly software, the system provides calibratable measurements with repeatable accuracy in a very broad range of standard and more exotic signal analysis types, as well as automated test sequences for production quality control applications.
The system consists of a computer-linked external front-end cabinet which provides a powered measurement microphone input as well as analog signal I/O (line-level and 40 Watt power) with user controllable signal amplification and signal routing.
The accompanying software has an intuitive menu control, is easy to learn and runs on a plain Windows XP based PC or laptop.
The system is available in two versions:
DAAS® 4 USB and DAAS® 4 Pro II
for which our company has worldwide exclusive distribution rights (view certificate).
To illustrate both systems' features the table below gives an overview.
For extended information about both systems' capabilities, please refer to the product brochures and user manuals found at 'Related Articles & Papers' further below.
For further information, please contact: electronics@vandenhul.com
| DAAS® 4 USB: |
DAAS® 4 Pro II: |
| Portable laptop based system |
Professional PC based system |
| Runs with Windows XP (SP2 and higher) |
Runs with Windows XP |
| Comprises: Front-end with USB interface for mobile use on laptop + software |
Comprises: Front-end + PC inserted PCI converter board + software |
| Sample rates: 48 and 6 kS/s for infrasonic measurements |
Sample rates: 96, 48, 24 and 8 kS/s for infrasonic measurements (192 kS/s optional) |
| 18 bit resolution |
24 bit resolution |
| Two channel: simultaneous mic and line input for comparative measurements |
| Measurement of frequency response and impedance curves with variable frequency resolution down to 0.1 Hz |
| Calculation of phase from frequency response curves with automatic delay correction for acoustical measurements |
| Free field correction of acoustic frequency response curves |
| Minimum phase, excess phase and propagation time |
| Step response, impulse response and ETC (energy time curve) |
| Distortion measurement at virtually any frequency in the system's range |
| Evaluation of distortion curves versus frequency or level |
| Intermodulation and difference tone distortion with variable frequencies |
| Thiele-Small parameters measured with a special symmetric sine-sweep |
| Waterfall spectrum (cumulative spectral delay) |
| Frequency response measurement on phono pre-amplifiers by inverse RIAA-curve |
| Data export to speaker CAD programs like Audiocad, AkAbak®, LspCad, Leap, etc. |
| Spectrum analyzer function with various analysis options |
| Level meter in acc. to IEC651, Lm and LTM3/5, weighting filters A, B & C |
| Support of max. 99 different microphones including their correction data files |
| Optional: input for 200V condenser microphones, with LEMO input jack |
| Oscilloscope function |
Digital storage oscilloscope function, time selective frequency analysis and waterfall diagram |
| Reverberation time analysis (RT60) |
3D-Impulse response measurement with cosine-burst signal |
| Speech intelligibility measurements RASTI & STI-PA |
Wow & Flutter measurement on turntables and tape recorders |
| Frequency response measurement with live signals ("on stage" meas.) |
Optional: QC-software available for quality control applications |
Dowload: DAAS4USB 4-09-09-14 installer
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