Technical data

DOC-01-TELAS-CRG-4 ASTi ACE Studio Components Reference Guide Rev.M
116 Copyright © 2014 Advanced Simulation Technology inc.
7.3. Engine Level D
Summary: A high fidelity engine component that can recreate intake hisses,
combustion roar, blade and tip buzz, and characteristic whine tones.
Description: The Engine Level D component provides a composite sound for
engines at the highest fidelity level required by the FAA. The component includes
five principal sources for noise including: the impact of the blade movement
through air, the effects of air velocity, the noise effect based on aircraft elevation,
the noise effect of engine fuel consumption, and the noise effect of engine ignition.
The overall sound can be tuned based on manipulating the RPM, airspeed, fuel
flow, and overall gain control.
Control Inputs
AirSpeed
Type Default Value
float32 1.0
Description: Provides the control of the airspeed which drives the
intake hiss sound.
Altitude
Type Default Value
float32 1.0
Description: Provides a gain effect based on altitude, input effects
the overall output of the component.
EngineLit
Type Default Value
float32 1.0
Description: This controls when the igniters light the fuel in the
engine.
FuelFlow
Type Default Value
float32 1.0
Description: The rate of fuel consumed by the engine, typically
pounds per hour.
Control Inputs
N1_RPM
Type Default Value
float32 1.0
Description: Provides control for the first stage of blade RPM.
N2_RPM
Type Default Value
float32 1.0
Description: Provides control for the second stage of blade RPM.
Output-
Gain
Type Default Value
float32 1.0
Description: Applies the overall composite gain control.
Internal Parameters
Altitude
Type Default Value
function n/a
Description: The sound driven by Altitude input manipulated by
Gain_Table to create the altitude effects on sound.
Combustio
n_Fuelflow
Type Default Value
function n/a
Description: The sound driven by FuelFlow manipulated by
Freq_Table and Gain_Table to create the combustion sound.