Create a custom measurement series in AHA

The scaling is also able to be processed by a specific controlling file, which is customizable in the sound level and signal type. You can also play external signals via wave files (.wav-files).

The name of the file that must be created is: 'AHA_Reihe.txt' (Reihe is german for series). The file must be saved in the ACAM root directory (normally this is: C:\Program Files\ACAM). This is a regular ASCII file which can be opened with the WIndows Text Editor. Start this Editor and copy&paste the text below in this file (The text between the ***** including the *****).

The documentation of commands is included in the text below.

To be able to use the file in the AHA you have to activate it in the setup of ACAM (click on 'SET' button in AHA screen). After that the system will check at startup if a control file exist. If the file was found you can activate the dialogue 'use control file' in the setup.

If you want to use external wave files you have to save them in the 'data' folder of the ACAM directory:

C:\Programme\ACAM\Data

They must be labelled as follows:

NB_250.wav for 250Hz

NB_500.wav for 500Hz etc.

Before these files can be used in AHA you have to perform a calibration. This calibration is done in the ACAM_Kal program in the submenu 'AHA calibrations/ exteral noise. The calibration can be done seperately for every signal transducer.

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AHA_Steuer Ver. 1.0

// Doubleslash // = documentation/comment

// Variablen/variables:

// AHA_Signaldauer in Sekunden (Dezimalstellen immer mit Punkt ! => signal duration in seconds (decimal place with a point! ex.: 1.0 for 1 second

// AHA_Abfrage (1-2Stufig) 1=Einstufig , 2=Zweistufig =>AHA_polling (one-step or 2-step)

// AHA_Signalart 0 für internes Rauschen, 1 für Dateiwiedergabe => type of signal; 0 for internal noise, 1 for playback from file

// AHA_Mod_Fr Modulationsfrequenz => modulation frequency

// AHA_Mod_Hub Modulationshub (in dB) => modulation stroke

// Frequency and sound level is always seperated with a comma ('','') with a maximum of 100 frequency-level pairs.

// Allowed values for Frequency: 250,500,1000,2000,3000,4000,6000,8000

// Allowed values for sound level: 0 to 100 in interger in steps of 1 dB Werte möglich

AHA_Signaldauer=1.5 // Allowed values: 0.5 1 1.5 2 3 4 5 10 20

AHA_Abfrage=1 // Allowed values: 1 2

AHA_Signalart=1 // Allowed values: 0 1

AHA_Mod_Fr=2 // Allowed values: 0 0.5 0.7 0.9 1.2 1.6 2 3 4 5 6 7 8 10 15 20 30 40 50

AHA_Mod_Hub=10 // Allowed values: 0 1 2 3 4 5 6 10 15 20 25 30 35 40

// In the following you can type in your custom scaling set. Maximum of 100 saved frequency-level pairs.

500,90 // means: 500 Hz, 90 dB etc...

1000,90

2000,90

3000,90

4000,90

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