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Reduce the pressure, go for particle velocity
Software | Velo

Acoustic Shape

Combining multiple captures to create 3D sound visualization

Acoustic Shape is the last addition to the Velo software platform, expanding the current array applications from 2D to 3D. Similiar to Scan&Paint 3D, the key element of your measurement campaign is a 3D model. Multiple measurements can now be combined into one project by positioning and orientating the sensors around the 3D structure. Acoustic Shape can also be used to investigate non-stationary problems, enabling the localization of transient noises or sound field changes over time by using a RPM signal to synchronize multiple captures. The software offers real time process control and noise visualization tools together with a broad range of analysis possibilities.

BASE MODULE DATA OUTPUT

  • Narrowband or Octave bands analysis
  • Sound pressure maps & spectra
  • Particle velocity vectormaps & spectra
  • Sound intensity vectormaps & spectra


  • Coherence maps & spectra
  • Audio playback and export
  • Sound power spectra

Software Modules

Software Product Code
Acoustic Shape | Base module SW-AS
Order Tracking | Sub-module SW-AS-RPM
  • Base Module
  • Order Tracking
  • The main processing methods included in the base module are:

    • Power spectrum: Combines multiple captures into a 3D colormap based on power spectral calculations. This method provides a sound map adjustable along the whole usable frequency range.
    • Power spectrum movie: Provides a video output of a single capture of the evolution in time of the frequency components.

  • The system is equipped with an extensive order analysis module. It allows to track the rotational orders both with and without a tacho sensor.The Order Tracking Module is a perfect tool for studying rotating machinery, as it allows to analyze the frequency content of a signal with respect to the speed of rotation. What makes this module unique is the capability to extract the rotational orders without the necessity to record the RPM signal. Order extraction is done with just a few mouse clicks. You only need to define and highlight a known order in the spectrogram of a recorded sound signal. An efficient algorithm will then track the order and translate it into a tacho signal. The tacho signal synthesized this way, can now be used to determine the distribution of any other orders of your choice, in a simple and easy to understand ordergram. The main processing methods included in this sub-module are:

    • Order spectrum: Combines multiple captures into a 3D colormap based on order analysis. This method provides a sound map adjustable along the order range of interest.
    • Order spectrogram over time: : Provides a video output of a single capture representing the evolution in time of the order components
    • Order spectrogram over RPM: Provides a video output of a single capture representing the evolution in RPM of the order components.
Reduce the pressure, go for particle velocity

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