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• Sampling options
  
  Input buffer length 4K up to 256K samples (1)
  Sampling rates 5 kHz up to 192 kHz (2)
  16/24 bit, 2 channels, full-duplex operations
  Synchronous or asynchronous sampling modes
  Synchronous average 1 to 4096 cycles
  time domain average, frequency domain average
  Remove offset from sampled data option
  Measure logging
  Real-time impulse response monitoring (unique feature)
  
  
  
  
  
• MLS / Signal Generator
  
  MLS length 1K up to 256K samples (20 types) (3)
  Polarity inversion option
  Built-in Signal Generator: Multiple pure tones, Square,
  Ramp, Custom signal from a WAV file
  The internal Signal Genarator is Synchronous with
  the signal recorded in input. The frequency of the
  generated signal is optimized for the current sample
  rate and FFT size, allowing very accurate measurements
  (no "picket fence" effect)
  
  
  
  
  
• FFT and Analysis
  
  FFT length 1K up to 64K samples (4)
  Rectangular, Bartlett, Blackman-Harris, Hanning,
  Hamming, Blackman data windowing
  Full, half-right, half-left window type
  2 independent data selections and FFT of
  Impulse Response data
  1 independent data selection and FFT of Scope data
  Show weighting window over selection
  Optional phase shifting capability
  Transfer function measurement option
  Easy set, move, change windowing (WYSIWYG)
  IFT (Inverse Fourier Transform) function
  Energy Time Curve, Spectrogram, Nyquist Plot,
  Phase Unwrapping, Minimum and Excess Phase [EVP]
  Cross-Spectrum, Coherence,
  Cross-Correlation, Auto-Correlation, Correlation
  Meter, Stereo Check
  Audio Quality functions: SNR, THD, THD+N, IMD [RTA]
  3D Cumulative Spectral Decay (Waterfall) [WPP]
  Reverberation Time (T60), Early Decay Time, Definition,
  Clarity, Centre Time, Log Squared Plot, Schroeder Plot,
  Step Response Plot, Cumulative Energy Plot [RAP]
  Loudspeaker Electrical Impedance measurement,
  Thiele-Small parameters computation, Magnitude,
  Phase and Nyquist Plot of measured Impedance [IP]
  
  [EVP]: Enhanced View plugin
  [RTA]: Real Time Analyzer
  [WPP]: Waterfall plot plugin
  [RAP]: Room Acoustics plugin
  [IP]: Impedance and Thiele-Small plugin
  
  
  
  
  
• Compensation (equalization) and calibration
  
  Measure chain compensation: divide or multiply
  calculated FFT by another spectrum
  MLS compensation: divide or multiply MLS spectrum
  by another spectrum
  MLS narrow-band high-precision pink filter (5)
  Free field Impulse Response selection and overlay
  Latency time calibration (Fixed and Automatic
  latency compensation)
  Amplitude calibration: Peak, RMS, SPL (dB) mode, using
  internal or external source (standard calibrator)
  Microphone compensation: Spline method or
  of Calibration file from Microphone Manufacturer
  Frequency weighting (A, B, C, U, AU curves)
  
  
  
  
  
• Edit / View options
  
  Multiple windows views
  Frequency windows options: linear, logarithmic,
  1/1 octave, 1/3 octave frequency axis; phase, real
  part, imaginary part, magnitude (module, power,
  dB power) amplitude axis
  View values of time and frequency domain data
  X zoom, Y zoom, adjustable graph offset
  Autoscale feature
  Rounded or raw dB scale
  Frequency Data Overlay
  
  
  
  
  
• Load / Save options
  
  Save Impulse Response and Scope as IRE (proprietary
  format, 80 bit floating point data), export as
  TIM (MLSSA™), WAV (PCM 16, 32 bit and IEEE 32 and
  64 bit floating point), ASCII TXT files
  Save Frequency files as SPE (proprietary format), export
  as TXT and FRD files
  Load IRE, SPE, WAV (PCM 16, 24, 32 bit and IEEE 32 and
  64 bit floating point), TIM (MLSSA™), ASCII TXT, FRD files
  Export Impulse Response, Scope, Frequency graph picture
  Load / Save settings configuration files
  Load / Save geometry configuration files
  Export Time and Frequency data in XLS (Excel™) format
  
  
  
  
  
• Real Time Analyzer
  
  Transfer function
  Cross-Spectrum
  Coherence
  Cross-Correlation
  Auto-Correlation
  Correlation Meter
  Stereo Check
  Audio Quality functions
  SNR (Signal to Noise Ratio)
  THD and THD+N (Total Harmonic distortion)
  IMD (Intermodulation Distortion)
  
  
  
  
  
• Post Processing functions
  
  Invert Impulse Response
  Reverse Impulse Response
  Normalize Impulse Response Peak
  Find and subtract Impulse Response Offset
  Wrap Impulse Response
  Increase / Decrease / Normalize FFT Spectrum Magnitude
  Smooth Spectrum Data
  File Operations, Position-Weighting associations TXT file
  Spectra Merge (Nearfield, Farfield measurements merge)
  Microphone Weighting (and Inverse) of Impulse Response
  Frequency Weighting (and Inverse) of Impulse Response
  Pink Filtering (and Inverse) of Impulse Response
  Clear all Data Buffers
  
  
  
  
  
• Other features
  
  Expandable features using special purpose Plug-ins (6)
  Total Power Computation
  Quality control on the measured spectrum
  Sampling information window with measurement history
  Remote control bar
  Error prevention routines
  "Blinded" sampling mode (see manual and F.A.Q.)
  The whole program is native 32-bit coded
  
  
  

PLUGINS

• Waterfall plot (plugin)
  
  3D Cumulative Spectral Decay
  
  
  
  
  
• Room Acoustics (plugin)
  
  Reverberation Time
  Early Decay Time
  Definition
  Clarity
  Centre Time
  Log Squared Plot
  Schroeder Plot
  Step Response Plot
  Cumulative Energy Plot
  Implements Inverse Schroeder Integration
  Export computed ISO 3382 acoustical parameters
  (1/1 and 1/3 Octave ) as XLS (Excel™) file
  Optional automatic noise compensation
  Optional manual 1/1 and 1/3 octave filtering
  
  
  
  
  
• Enhanced View (freeware plugin)
  
  Energy Time Curve
  Spectrogram
  Nyquist Plot
  Phase Unwrapping
  Minimum and Excess Phase Impulse Response
  Minimum Phase Impulse Response Plot
  Phase editing options
  
  
  
  
  
• Filter Banks (freeware plugin)
  
  BUTTERWORTH and CHEBYSHEV IIR digital filter
  IEC 1260 Octave and 1/3 Octave Filter Banks
  Computation of the IIR filter coefficients, available
  for further use (example given)
  
  
  
  
  
• Audio Quality (plugin)
  
  SNR
  THD
  THD+N
  IMD
  NOTE: these functions are now included in main program!
  This plugin is still available but no more supported
  
  
  
  
  
• Impedance and Thiele-Small (plugin)
  
  Loudspeaker Electrical Impedance measurement
  Thiele-Small parameters computation
  Magnitude, Phase, NyquIst Plot of measured Impedance
  
  
  

(1) Maximum input buffer length 4K in light version
(2) Maximum Sampling rate 48 kHz in light version
(3) Maximum MLS length 4K in light version
(4) Maximum FFT size 4K in light version
(5) Pink filter not available in light version
(6) Plugins not available in light version

Sample Champion is available in two versions: Light and Pro.
Some features are limited in the Light version.

Comparative chart between "Pro" and "Light" versions

(*) If allowed from the audio device

Download now the trial version! Click here.

User Reviews. Read some comments and opinions from Sample Champion users. Click here.