Sound Composer Source Types

In a Sound Composer project you can mix several tracks including one of the following source types: Harmonics, Audio, Spectrum, and Broadband Noise.

The tracks of a Sound Composer project can include the following source types:

• Harmonics - 1 parameter: orders coming from rotating motors simulation, this dataset contains the levels of the orders vs. RPM.

• Harmonics - 2 parameters: as above, but using a series of source files (created from recording or simulation) describing the harmonic source for the model, with one parameter evolving in the file, and the other considered to be fixed for a given file.

• Audio: any audio sources composed of samples vs. time, coming from real measurements, for instance a recorded background noise, or from a simulations, for instance the pressure level vs time. WAV and UFF files are the most common inputs for this source type. Even if this source type is named Audio, the samples can be, for instance, acoustic recording, acceleration, voltage, flow pressure.

• Spectrum: spectral representation of an acoustic signal (level vs. frequency).

• Broadband noise - 1 parameter: spectra of a noise at multiple control parameter points, for example level vs. frequency vs. controlling parameter. It specifies the evolution of the magnitude spectrum of a noise over a parameter, such as the evolution of the spectrum vs. flow speed, vs. rpm, etc.

• Broadband noise - 2 parameters: as above, but using a series of source files (created from recording or simulation) describing the broadband noise source for the model, with one parameter evolving in the file, and the other considered to be fixed for a given file.