Page 36 - Prosig Catalogue 2005

SOFTWARE PRODUCTS
MODAL ANALYSIS & SOUND QUALITY AUDIO REPLAY

DATS Modal Analysis Suite DATS Sound Quality Audio Replay Software
Training & Support • Experimental Modal Analysis (EMA) • Synthesis of Audio by Filtering
• Playback & Compare Multiple Signals
• Operational Modal Analysis (OMA)
• Filter Frequencies or Orders
• Modal Parameter Identification
• Vary Filter with Speed
• Alternative Curve Fitting Algorithms:
SDOF
• Import from WAV
MSDOF & MDOF (Frequency Domain)
ERA-DC (Time Domain)
• View Sound Quality Metrics
• Stability Diagram • Export to WAV & WMA
• FRF Synthesis from Modal Parameters The DATS Sound Quality Audio Replay (SQAR) package allows
Condition Monitoring metrics, speed) with simultaneous audio output for listening. A
a user to listen to and analyze audio data. The replay software
• Forced Response Prediction
displays various data views (time series, orders, sound quality
click on one of the graphs will jump straight to a particular place
or a couple of clicks will make the replay loop around a small
section.
Multiple signals are loaded to form a playlist. While listening a
simple click will switch between
different signals. If the data is
speed based the software will
switch between signals at the
same speed.
Multiple filtering with
combinations of order filters and
Software The DATS Modal Analysis suite is provided for analysts who investigations and “what if?”
frequency filters allows detailed
want to determine Modal Frequencies, Damping Factors & Modal
analysis. The playlist may include
Amplitudes from either measured frequency response functions,
both the original and the modified signals for direct comparison
impulse response functions or from response-only data. A variety
of frequency and time domain identification methods are provided with each other. All filters have an optional speed profile. This
for the extraction of these parameters. These include Half-Power allows varying amounts of filtering or gain to be applied to
methods, SDOF, MSDOF, MDOF and ERA-DC. The identified different parts of the signal according to the speed at that point.
mode shapes can be displayed and animated using the Prosig
Structural Animation package. A synthesis module is provided to Features included
enable Frequency Response Functions (FRF) to be regenerated Visualizations Sound Quality Metrics
from the identified parameters thereby revealing the accuracy of Time Histories Loudness
Time-Speed Curve
Zwicker Free
the modal model fitting. Forced responses can also be predicted
Hardware by convolution of the regenerated FRFs with either simulated or Waterfall Plot Speech Articulation Index
Zwicker Diffuse
Order Plots
ISO532B & Vehicle Biased
known force inputs.
Waterfall Color Map
Stevens (ISO532A)
Sound Quality Metrics
Features included
ANSI S3.5 1969
Real-time Speed Readout
Vehicle Biased
Parametric identification of
Order Pass
Order Reject
High Frequency Factor
• Modal Frequencies Filters Composite Rating Performance Value
• Damping Factors Butterworth Frequency (Band Pass) Speech Interference Level
• Modal Amplitudes Butterworth Frequency (Band Reject) Spectral Balance
Frequency and Time Domain Methods Filter Attenuation versus Speed
• Half-power estimates DATS Sound Quality Audio Replay Software
• SDOF, MSDOF, MDOF
System Packages • FSDD (Frequency) Modal analysis suite (Requires 01-55-622 DATS. 01-55-717 Sound Quality Audio Replay software. (Requires
• ERA-DC
OMA Methods
• ERA-DC (Time)
01-55-622 DATS.toolbox)
FRF synthesis from Modal Parameters
Prosig Sound Quality Audio Replay add-on
04-55-782
consisting of a pair of Creative Inspire 2.1 speakers,
DATS Modal Analysis Suite
Creative Soundblaster Audigy 2 external USB sound
card, a pair of Sennheiser HD437 headphones (all
01-55-848
items subject to availability)
toolbox)
36 http://prosig.com +1 248 443 2470 (USA) or contact your
sales@prosig.com
+44 (0)1329 239925 (UK) local representative
A CMG Company