AFMG offers two different versions of EASERA - EASERA and EASERA Pro - and different modules for users to choose. Please have a look at the Features and Version Comparison below to determine which version and possibly which module is the right choice for your needs.
The POLARS module can be combined with EASERA and EASERA Pro.
- Expands EASERA or EASERA Pro by the features for automated measurements.
- Can be used to control measuring robots.
Advice: If you are interested in this functionality, please get in touch with us. We will gladly explain all details.
- Version Comparison
Feature / Version EASERA EASERA PRO MLS Module* POLARS Module** TEF/TDS Module Number of channels 2 32 Sample rate 8 kHz - 48 kHz 8 kHz - 192 kHz Reverberation Time (T10, T20, T30) Signal to Noise Ratio (SNR) Speech Transmission Index (STI) STIPa RaSTI Articulation Loss of Consonants (% AlCons) Sound pressure level (SPL) in real time
Including: A-, B-, C- and Z-weightings for SPL; and visualization of peak and RMS values for both
Voltage measurements in real time Signal generator with typical stimuli
Sweep, Log-Sweep, Weighted Sweep, Pink Noise, White Noise, Sine, Weighted Noise
Waterfall plot Calibration of in- and outputs
For acoustic and electronic measurements
Real time measurements
Spectrum, spectrogram, basic transfer function
Early Decay Time (EDT) Center Time (ts) Clarities (C30)
User-defined energy ratios
User-defined integration times
Interaural Cross-Correlation Coeff. (IACC) *** Energy sum
Reflection Index / Reflection Factor
in-situ measurement of material properties
Sound Strength (G) Relative Strength (Grel) Feature / Version EASERA EASERA PRO MLS Module* POLARS Module** TEF/TDS Module Statistical properties of single measurements
Signal mean (DC), noise mean (DC), signal effective value (RMS), crest factor, absolute maximum amplitude...
Low pass, high pass, band pass filters with Butterworth, Chebychev I and Chebychev II characteristics
Hanning, Hamming, Blackman, Rectangle, Triangle, Kaiser window types
Averaging Measurement Files, Adding Measurement Files, Cyclic Move, Undo/Redo, Copy/Paste
Includes group delay, real and imaginary parts
Noise Criteria (NC, PNC, NR) Viewing and processing of multiple measurements Impedance measurements *** Impulse Response to Noise Ratio (INR) Definition (D) Echo Criteria Lateral Fraction (LF) *** Latefal Fraction Coefficient (LFC) *** Support (ST1 and ST2) Modulation Transfer Index (MTI) and Modulation Transfer Function (MTF) Various display units
V, dBV, dBu, dBm, dBW, dBSPL, etc.
Feature / Version EASERA EASERA PRO MLS Module* POLARS Module** TEF/TDS Module User-defined measurement signals
Convert almost any signal to an EASERA stimulus, e.g. WAV files
Automated post processing with editing sequences
Apply a number of editing operations automatically
Advanced editing including mathematical transformations
Remove DC, Set To Value, Add Value, Subtract Value, Multiply By Value, Divide By Value, Scale To, Square, Square Root, Inverse, Power, Custom Smoothing, Expand/Shrink, Change Length, Divide, Subtract...
Harmonic spectra (K2, K3, ...) Total Harmonic Distortion (THD) Scale model measurements
Using adequate high-frequency measurement setup, EASERA allows to remove air absorption and change sample rates according to ISO 9613
Tolerance mode to detect sound events and save them to a file automatically Measurements with MLS excitation signals
3D directional measurements
Using adequate measurement setup, for loudspeakers, microphones, etc.
Support for measuring robots and turntables, such as Four Audio ELF robot, LinearX LT360, Outline ET2 and Outline ET250-3D turntables
TDS measurements - Time Delay Spectrometry
* The MLS module is included within EASERA Pro.
** The POLARS module can be combined with EASERA and EASERA Pro.
*** Using adequate microphone setup.
Module for EASERA or EASERA Pro, 1 User Key