Generating an Extended Signal from a Short Duration Signal

Signals generated from numerical simulation data of a physical model (such as Mechanical or Fluent simulations) are often too short to be perceived well. Generating an extended signal enables you to listen to a longer sound. In addition, the longer signal can be better analyzed, such as for psychoacoustic indicators.

Note: The method used for the generation is based on the spectrum of the short signal. From this spectrum a longer signal is generated. This longer signal is stationary all along its duration; that is to say there are no transient events and the spectrum is constant all along the signal.

To Generate an Extended Signal from a Short Duration Signal:

  1. Go to File > Generate extended signal from short duration signal...
  2. In the Open dialog box, browse your computer to select the temporal signal file (*.wav, *.uff, *.unv, *.d7d, *.dxd, *.txt, *.out) from which you want to generate the extended signal.
  3. Click Open.
    The Sound creation window opens.
  4. In the Sound creation window, set the duration of the output signal in seconds.
  5. Click OK.
    The extended signal is generated.
  6. Go to File > Save signal... to save the extended signal in a *.wav file.

The extended signal is saved.