
		Ŀ
		                                                 
		        SPEAKER V 6.0 PRO                        
		    Copyright (c) 1988-93 by     
		          C. Schawe                          
		                                             
		                                       
		                                             
		                                
		                                                 
		


                USERS MANUAL

                PART 1




     Contents :

     1.         Installation
     1.1        Hotline
     2.         Hard and Software requirements
     3.         Main Menu
     3.1        Calculations
     3.1.1      x-overs
     3.1.2      Enclosures
     3.1.2.1    Vented boxes
     3.1.2.3    Graphic vented enclosures
     3.1.2.4    Sealed enclosures
     3.1.2.6    Graphic sealed enclosures
     3.1.2.7    Horn systems
     3.1.2.8    Transmission lines
     3.1.2.9    Compound systems
     3.1.2.10   Bandpass-speakers
     3.1.2.11   Speaker part list calculations
     3.1.2.12   Bandpass simulation
     3.1.2.13   Attenuator circuits
     3.1.2.14   Attenuator damping circuits
     3.1.2.15   Zobel/RC/notch-filters
     3.1.2.16   Pulse response calculations
     3.1.2.17   Loading spl
     3.1.2.18   Loading MLISSA data
     3.1.2.19   Calculate driver impedance and spl curve
     3.1.2.20   Import KEMSONIC data
     3.1.2.21   Programer`s chapter
                ASCII Export / Import APL data
     3.1.2.22   Import data for speaker data base
     3.1.2.23   Import MEPEG spl and impedance curves
     3.1.2.24   HIFISOUND database (DAAS Import)
     3.1.2.25   ATB 2.3 data Import
     3.1.2.26   LMS import functions
     3.1.2.27   The Imp import functions
     3.1.2.28   CLIO import functions
     3.1.2.29   PC-AUDIO LAB import functions
     3.2        Database
     3.3        Defamp (defination spl and impedance curve of
                         a driver)
     3.4        Simulation / Project operation
     3.5        Learning example (see Quick Introduction)
     4.         Further developments
     5.         Graphics print-outs
     7.         Licence agreement




     $1. Installation

     Insert disk in drive a: or b: and  press (return)

     Install c: (return)

     A directory SPEAKER will be created on your drive c:

     Any other drives can be used optionally e.g. e: etc.

     If SPEAKER should be installed under WINDOWS see chapter 5


     $1.1 Hotline

     We suggest that the SPEAKER PRO user first studies the
     Quick Introduction manual and tries to go through the
     speaker project explained there. For any further assistance
     a hotline is available between monday and friday 15.00-16.00.
     Phone: 02129 / 552-0 (Germany)

     $2.  Hard and Software requirements

     - IBM compatable XT / AT
     - Hard disk (2 MB) required
     - 640 K RAM
     - MS DOS 3.0 or higher
     - COPRO (recommended) will be supported
     - The following graphic cards will be supported:
       VGA (color), EGA (color), CGA (color), Hercules (monochrome),
       ATT, IBM 8514, PC 3270.
     - Supports MOUSE
     - Supports printers with IBM 2 fonts

     Note :  For any other hard- and software configurations please
             first try the demo version.


     $2.1. Operating instructions

     SPEAKER supports the SAA standard. The program can be operated by
     either MOUSE or KEYBOARD functions. The functions of the
     top-menu bars are always available by eithter MOUSE or ALT-
     Hotkey functions. A HELP text is always displayed at the bottom
     line.

     The masks are organised in a logical sequence, starting at the
     top and ending at the bottom. The operation is simply by press-
     ing the right MOUSE button or the equivalent cursor or HOT-KEY.

     The masks are generally determined as follows:

     - Menu inputs
     - Keyboard inputs

     The MENU functions are underlined in green and can be activated
     by either pressing the left MOUSE button or by the equivalent
     cursor function.
     The HOME key switches to the first and the END key to the last
     point of the MENUE.

     The input of variables can be selected by either MOUSE or KEY-
     BOARD  in the above discribed manner. By pressing the left MOUSE
     button or entering any key the tool switches to the input mode
     which is not MOUSE supported. Editing of the input box supports
     the following functions:

     - HOME : cursor moves to the first digit of the data string
     - END  : cursor moves to the last digit  of the data string
     - CURSOR LEFT :   Cursor moves left
     - CURSOR RIGHT :  Cursor moves right
     - CURSOR DOWN  :  Ends data entry
     - CURSOR UP    :  Ends data entry
     - ESC          :  Aborts entry
     - INSERT       :  Overwrite mode
     - Backspace


     Print-out of any mask is possible by hard-copy comand.(ALT P)
     If the printer used can not be adressed, an error message will
     be displayed. Plesae make sure that the printer is set on IBM
     S 2. In any other case the graphic fonts won`t be printed
     correctly.

     By pressing F1, an on-line  help will be available.

     The DOCU PART 1 is anytime available by pressing F 2, so is
     the DOCU PART 2  by pressing F 3.

     The ONLINE-HELP function can be scrolled up and down using
     the curser and can be aborted by pressing ESC.

     Please note the project explained in the QUICK INTRODUCTION
     MANUAL.

     $3. Main menu

     The main menu is divided in the following sub-menus:

     -             : Copyright, Hotline, Info, Licence
     -             : Load, Save, Create, Desktop
     -             : Load, Save, Create, Project
     -             : Load, Save, Create, Database
     -             : Load, Save, Create, SPL
     - Enclosures  : Calculate, Simulate enclosures
     - X-Overs     : Calculate Low-pass, Bandpas, High-pass
     -             : L-Pad, RC calculations
     - Data        : Parameter, Database, SPL, Simulation
     - Manual      : User's manual
     - Print       : Print out of user's manual and order form


     $3.1           Calculations

     $3.1.1         X-overs

     The program supports the calculations of the following x-overs:

     - Special formulas

               6dB Low-pass
               6dB Bandpass
               6dB High-pass
              12dB Low-pass
              12dB Bandpass
              12dB High-pass


     - Schoolbook formulas

              6dB Low-pass
              6dB High-pass
             12dB Low-pass,(constant power characteristics)
             12dB Low-pass, Linkwitz-Riley
             12dB Low-pass, Linkwitz
             12dB Low-pass, Bessel
             12dB Low-pass, Butterworth
             12dB Low-pass, Chebychev
             12dB High-pass,(constant power chracteristics)
             12dB High-pass, Linkwitz-Riley
             12dB High-pass, Linkwitz
             12dB High-pass, Bessel
             12dB High-pass, Butterworth
             12dB High-pass, Chebychev
             18dB Low-pass
             18dB High-pass
             24dB Low-pass,(constant power characteristics)
             24dB Low-pass, Linkwitz-Riley
             24dB High-pass,(constant power characteristics)
             24dB High-pass, Linkwitz-Riley

             various Band-pass combinations of the above mentioned
             High- and Low-pass circuits are possible.

             The difference between the special formulas and the
             school-book formulas is the free choice of the damping
             with a given cut-off frequency.
             Please note that the polarity of adjacent drivers has to
             be out of phase, using 2cd. order filters (12dB)
             avoid spl glitches. (The effect can be shown by
             the simulation tool)


             After choosing the filter type (e.g. LP/BP/HP), the
             filter can be specified by entering data in a mask.
             By choosing the SELECT FILTER menue, the filter type
             can be specified and the filter circuit will be
             displayed.

             f low  : lower cut-off frequency
             f high : higher cut-off frequency
             a      : filter damping at defined cut-off frequency
             Z      : driver impedance
                      Note: You find this parameter in the database.


             $3.1.2  ENCLOSURES

             This sub-menu allows the calculation, or simulation of
             enclosures regarding the spl, impedance and phase curves
             The software supports the following constructions:
             Slealed box, vented box, bandpass box, transmissionline
             box, compound system, exponential system and horn
             system.
             The simulation of the spl, impedance and phase functions
             are possible with the following constructions:
             Sealed box, vented box, bandpass box.

             Please note that the project menue allows the combined
             simulation of  the above mentioned enclusures plus
             x-overs.

             "Calculate port area" allows the calculation of the
             area of a bassreflex vent.


             $3.1.2.1   VENTED ENCLOSURES

             The program allows the calculation of the net volume
             and the port dimensions of vented boxes.
             The length correction factor can be freely chosen.

             The mask is divided in the input- and parameter part.
             The speaker parameters are automatically loaded by
             choosing a driver from the database. Please note
             that the spl characteristics are dependend on the
             ripple. The ripple determinds the Q-factor of the
             system.

             Ripple       Q/factor
             =====================
             0dB          1
             -3dB         0.7
             +3dB         1.4

             Note : The port area can be calculated or optimized
                    by choosing the sub-menue "Calculate vent".

             To choose a simple port area choose port are 0.
             As minimum length of the port enter the wall thickness
             of the enclosure. This is a special case of port area
             optimization for port lenghts smaller than port areas.

             The result can be transferred to the project menue.


             $3.1.2.3  Graphic vented box

             This sub-menu allows the display of the spl and
             impedance curves of a vented box. By pressing the
             +/- keys the net volume can be altered and by
             pressing the u/d keys the tuning frequency can be
             varied. The length of the vent will be automatically
             calculated. For a new calculation press (return).
             This method allows the simulation of "purposely wrong"
             choosen tunings.

             Choosing the "FILE" menu, a real spl function will be
             simulated. If you prefer to test a theoretical spl curve
             the file menu also allows to unload the file.
             The results can be taken over for the speaker simulation


             $3.1.2.4  Calculate sealed enclosures

             The program calculates the required net volume of an
             enclosure for a determined Qtc and fo. Furthermore, the
             program calculates the net volume for damped or undamped
             enclosures.

             The mask is diveded in an input- and parameter part.
             The parameters are automatically taken over from the
             database. Default values are automatically installed.
             Please note that the spl values are determined by the
             Qtc factors.

             Ripple / Q factor
             =================
             0dB       1
             -3dB      0.7
             +3dB      1.4

             The results can be directly transfered to the project
             menu for simulation.


             $3.1.2.6   Graphics slealed enclosure

             This menue allows the graphic display of the spl and
             impedance curve of sealed enclosures. By pressing the
             +/- keys the net volume can be varied. A new calculation
             can be carried out by entering (return). This method
             allows purposely wrong determined tunings.

             A real spl curve will be simulated by choosing the FILE
             menu. If you prefer to test a theoretical spl curve,
             the "FILE" menu also allows to unload the curve.

             The results can be directly transfered to the speaker
             simulation.


             $3.1.2.7      Horn systems

             This menu allows the calculation of horn systems.
             Both, exponential and re-entrant horn systems are
             supported. After entering the TSP`s , the calculation
             regarding the horn characteristics will be started.
             The TSP`s can be loaded from the database.

             After choosing the calculation the criteia are checked
             again.

             Note:
             Please note that the higher cut-off frequency fh, will
             be adjusted to the chosen driver.
             Drivers applied in horn systems should have the
             following criteria:

             - low electrical Q factor (Qes)
             - low ohmic resistance (Re)
             - strong magnetic drive (B)
             - long vc-winding (l)
             - light cone (Mmd)

             After choosing the menue EXPO (exponential horns), the
             calculated horn parameters will be displayed in a mask.

          Most interesting are the parameters for the volume of the
          compression chamber, the driver`s rear volume, the throat
          area and the length of the horn system. The mouth area and
          the horn length will be calculated for  different horn
          positionings.
          - free positioning
          - floor positioning
          - floor/wall positioning
          - corner horn
          The correct positioning has to be selected before the
          the calculation takes place. The corner positioning has
          been pre-selected as standard. For other positionings
          please use the switch box POS. The top right dialog box
          displays the selected mode. After choosing the box DIM
          or PRINT the horn dimensions will be calculated and
          printed out or displayed on the screen.

          The standard horn calculation is only slightly different
          from the exponential horn calculation. The result mask
          will display the diameter of the mouth opening with
          respect to the positioning for standard horn systems and
          the horn length for exponential horn systems. A more
          detailed documentation is therefore not necessary.

          $3.1.2.8  Transmission line enclosures

          In this sub menu, the length as well as the front and rear
          area of the transmission line can be calculated.

          The mask is divided in the parameter- and the input part.
          The driver parameters will be automatically loaded from
          the database.

          After the loading of driver data and entering the input
          values, the following operations can be carried out :

          OPTIMIZE : Calculation of the coupling volume by the
          application of an optimized calculation method.

          DRIVER : Editing of the Thiele-Small parameters of the
          compound driver.

          VOLCOR : Parameter input for the correction of the
          coupling volume. The calculation considers any volume
          losses caused by the driver magnet etc.

          CALCULATE : Calculates the Thiele-Small parameters of the
          new compound driver.

          Due to a change of both, spl and impedance curves, the user
          is requested to run a simulation of the new driver.

          After the parameters of the new compound driver have been
          calculated and the new frequency response curves have been
          simulated, a new enclosure calculation can be carried out.

          NOTE : If this program operation is repeated immediately,
                 this command is regarded as a new compound enclosure
                 calculation command. It is therefore possible to
                 calculate compound configurations with an unlimited
                 number of drivers.


     $3.1.2.10   Bandpass enclosures

     This menue allows the calculation of bandpass enclosures.
     The closed volume VB, the vented volume VF and the length of
     the vent will be calculated.

     The enclosure is constructed as follows:



	  ͻ
	        \\         
	    Vent     \       
	         /       
	  VF:      //         
	  ͼ          
	                      
	  VB:                 
	                      
	  ͼ



     The mask is divided in the parameter and the input part.
     The driver parameters will be loaded fro the databese.
     Default values can be chosen for the input data. Please
     note that the frequency response is dependent on the ripple.
     The ripple directly determinds the Q factor of the system (S).

     Ripple   Q-factor
     =================
       0 dB     1
     - 3 dB     0.7
     + 3 dB     1.4

     The approximate frequency response of the bandpass will be
     effected by the input parameters, upper and lower cut-off
     frequency. Those parameters will determine the center frequency
     of the bandpass.

     The realization of the upper- and lower cut-off frequencies
     depends on the bandwidth of the bandpass which is effected by
     the ripple. The rule is, that a larger bandwidth is achieved
     by a ripple >= zero. A smaller bandwidth is achieved by a ripple
     values < zero.

     After choosing menue point CALCULATE the parameters of the band-
     pass enclosure will be calculated. (i.e. Vf, Vb and the length
     of the vent)

     Note: The menu CALCULATE PORT allows the calculation and op-
           timization of the vent.

     To realize a simple vent, choose vent length 0. Enter the wall
     thickness of the cabinet as minimum length. This is a special
     case of the automatical port area adjustment, applied for vents
     with a length lower than the minimum vent area.

     The results can be directly transfered to the PROJECT menue.


     $3.1.2.11      Enclosure part list calculation

     This menu allows a calculation of an enclosure part list. A
     part list will be calculated considering the enclosure net
     volume, the wall thickness and any volumina that have to be
     subtracted (e.g. driver magnet, vent etc.). The part list
     can be printed out. Most parameters will be automatically
     taken over.


     $3.1.2.12    Bandpass speaker simulation

     The menu allows the calculation of a bandpass enclosure without
     any external circuit configurations. The spl and impedance
     curves will be simulated.

     The simulation menu allows the alternation of parameters
     determining the bandpass functions. By pressing the +,- (Vb),
     the p,m (Vf), and the u,d (fb) keys those parameters can be
     changed. For a new simulation press (return).

     If the SAA menue FILE has been chosen to load a frequency
     response curve, those curves will be considered for the
     simulation. For a study of the theoretical frequency response,
     the curves can also be unloaded (FILE menu).

     The results of the simulation can be directly transfered to the
     PROJECT menu.

     The simulation considers a constant voltage of 2.83 Vrms for the
     driver.

     $3.1.2.13    L-circuit

     The L-circuit is a configuration of two ohmic resistors
     connected as a voltage divider circuit. The circuit is used
     for level attenuation without effecting the load impedance.


     $3.1.2.14   Calculation of the L-circuit attenuation

     As explained already, the circuit can be applied for level
     attenuation, using the two resistors as a voltage divider to
     reduce the voltage across the driver. The level attenuation
     of any circuit configuration can be calculated.

     As result, the attenuation factor will be displayed.

     $3.1.2.15   Zobel/RC/Notch filter circuits

     The impedance function of a loudspeaker is a frequency
     dependened curve, which is directly proportional to the
     frequency. Apart from that, the curves in most cases show
     a resonance peak at a certain frequency. The Zobel filter has
     been developed to compensate the increase of the impedance at
     higher frequencies, resulting in a linear impedance function of
     a driver. Other circuits for impedance compensation are the rc
     circuit, which compensates the increase caused by the voice
     coil`s inductivity and notch filter which can be applied to
     compensate impedance peaks.

     Note : To calculate any of the circuits the inductivity of the
            driver must be known. If the parameter is not known it
            can be  calculated, as a function of the impedance curve.
            If the inductivity is known, no data for Z and Fm have to
            be entered. Otherwise the inductivity can be calculated
            by entering data for Z and fm.


     $3.1.2.16 Pulse response calculation

     The pulse response respects the transient response of a
     loudspeker. SPEAKER PRO 6.0 applies the Fourier transformation
     of the speaker response. The pulse response can be simulated for
     closed-, bassreflex- and bandpass enclosures. The x-axes
     represents the time a speaker takes to respond to a pulse. It
     is therefore possible to judge the pulse response of a driver
     mounted in a cabinet.

     $3.1.2.17    Loading of an spl curve

     The spl curve of a speaker can be loaded from the FILE menu.
     The driver can be selected from a list.
     The loaded response curve can be
      - edited  by chosing the EDIT GRAPHIC menu
      - used for enclosure simulations
      - transfered to the PROJECT menu


     Please note that it is adviseable to use the same name of
     the frequency response file also in the database.

     This provides that the correct frequency response curve will
     be activated after the selection of a driver in the database.


     $3.1.2.18   Importing MLSSA data

     The IMPORT menue allows the direct import of MLSSA data for
     further processing in the SPEAKER PRO 6.0 program. Due to the
     fact that MLSSA does not differenciate between the two files,
     the user has to choose between the spl- and impedance data file.
     SPEAKER PRO 6.0 is able to import MLSSA *.FRQ files. To make
     proper use of the various enclosure simulations, the impedance
     curves should be measured under free-air conditions.
     SPEAKER PRO 6.0 is now able to simulate the enclosure effect on
     the free-air impedance curve applying an additive method. It is
     also possible to measure the impedance curve of a driver in the
     enclosure instead of simulating the curve. The type of enclosure
     must be UNSPECIFIED. MLSSA can only generate proper measureing
     results above a certain defined frequency which can be defined by
     the SPEAKER PRO 6.0 user by choosing simulation.

     The FFT transformation for *.TIM files will not be supported.

     To import MLSSA data apply the following sequence under MLSSA.

     - Start MLLSSA
     - Choose the Transfer menu
     - Choose the sub menu Load
     - Enter the file name and confirm
     - Choose FFT from the main menu
     - Choose the sub menu Size
     - Adjust the FFT Size
       The best resolution can be achieved by choosing 32768 points.
       In order to save memory space it is also possible to choose
       a lower resolution.
     - Choose FFT from the main menues
     - Choose Execute to activate the FFT mode
     - Choose Transfer-Save to save the FRQ file

     - Start Speaker PRO 6.0
     - Choose FILE from the main menues and select NEW FREQUENCY
       CURVE and choose a name for the spl file. Choose any existing
       file.
       Please note that any existing file will be erased.
     - Initialize the MLSSA import directory using the command
       Import MLSSA -> Initialize
     - Choose the import menu and select "Import MLSSA" -> SPL
     - A pull down menu appears, showing the FRQ files available.
       The user can now select a file using mouse or cursor
       functions. Note that  MLSSA does not differenciate between
        spl and impedance curves and take your choice.
     - SPEAKER PRO 6.0 will now load the selected setup files.
       The user now has to enter the 0 dB reference level.
       If the level is not known, enter 120 dB. After entering
       Import, the file will be imported. The result can be shown
       or edited by choosing the DATA menu and here GRAPHIC EDITOR.

     After the spl curve has been imported, the impedance curve
     should be imported as well. The phase will be respected.

     Use the following sequence :

     - Start MLSSA
     - Choose menu transfer
     - Choose load
     - Enter the file name and confirm
     - Choose FFT from the main menus
     - Select size
     - Adjust FFT size
       The best way is to select the maximum resolution of 32768
       points. If the memory space should not be available a lower
       resolution can be chosen.
     - Choose FFT from the main menus
     - Choose Mode
     - Choose impedance
     - Impedance units and series resistance
       (read the MLSSA manual)
     - Choose FFT from the main menu
     - Execute to activate FFT
     - Save the FRQ file by choosing Transfer-Save

     - Start SPEAKER PRO 6.0
     - Choose "FILE" from the main menus and select "FREQUENCY
       RESPONSE NEW" and choose a name for the new file.
       Please note that existing files will be erased.
     - Initialize the MLSSA import directory by selecting MLSSA
       Initialize.
     - Choose "Import" and select "Import MLSSA" -> "Impedance"
     - A pop-up menu will be displayed, showing the FRQ files
       available. The user can now choose a file. The user has
       to decide between spl and impedance files, because MLSSA
       does not differenciate between the two.
     - SPEAKER PRO 6.0 will now read the setup files selected which
       will be displayed. If the supply voltage and the series
       resistor have not been entered in the setup file the user
       has to enter the required data. Usually a series resistor of
       25 ohms and a supply voltage of 1 volt is applied.

     - The result can be displayed by choosing "DATA" and selecting
       "GRAPHIC EDITOR". The frequency response file can be saved by
       selecting "SAVE FREQUENCY RESPONSE" from the "FILE" menu.

     $3.1.2.19 Calculate spl and impedance of a driver

     If the TSP are the only available data for a driver, SPEAKER
     PRO 6.0 offers a function which allows the calculation of the
     spl and impedance curves, including the phase function for
     the impedance curve.
     Since quite often data are not completely available, it is
     possible to calculate the following functions :

     - impedance
     - electrical phase
     - spl

     The data can be saved selecting "FILE" -> "SAVE FREQUENCY
     RESPONSE NEW".

     $3.1.2.20  Importing KEMSONIC data

     By choosing the "IMPORT" menu, KEMSONIC data (i.e. spl,
     impedance and phase) can be imported. In order to import
     KEMSONIC data the "EXPORT" functions of AMSPC will be used.
     To make use of the enclosure simulation functions of
     SPEAKER PRO 6.0, users shall be advised to use the free air
     method for measuring the impedance. This method allows to add
     the effect of the enlosure, in the SPEAKER PRO 6.0
     enclosure simulation. If the enclosure effects should not be
     respected, it is possible to use the comand "ENCLOSURE
     UNSPECIFIED".

     In order to import KEMSONIC data use the following procedure:

     - Start AMSPC
     - Choose file menu
     - Select "LOAD OBJECT"
     - Choose export file
       level file       : *.PEG
       impedance file   : *.IMP
       phase file       : *.PHI

     - Select the selection by pressing (return)
     - Select "OBJECT"
     - Use the (space) key to select objects
     - Use the (return) key to confirm the selection and to activate
       the export.

     After the export, the files will have new extentions

     Old        New       Meaning
     ============================
     *.PEG      *.PEC     level
     *.IMP      *.IMC     impedance
     *.PHI      *.PHC     phase

     What to do now ?

     - Start SPEAKER PRO 6.0
     - Choose "FILE" and select "FREQUENCY RESPONSE NEW" and choose
       a name for the frequency response file. If you want to extend
       an existing file, load that file.
       Please note that existing files will be erased.
     - Initialize the import directory by choosing import-> KEMSONIC
       -> Initialize
     - Choose the "FILE" or "DATA" menu functions to "IMPORT
       KEMSONIC"
     - Initialize the import directory by  selecting Import ->
       KEMSONIC  -> Initialize
     - Define, if necessary, the 0 dB reference level, which is
       necessary using the "LEVEL" import function.
     - At this point you will be able to choose the following:
       -LEVEL-,  -IMPEDANCE- or -PHASE- alone
       or
       -LEVEL-,  -IMPEDANCE- and -PHASE- together.
     The import of the three functions should have a common data
     file extention.(e.g. OTTO.PEC, OTTO.IMC, OTTO.PHC)

     - Afterwards the directory of any available *.PEC, *.IMC
       and *.PHC files will be displayed in accordance to the
       import mode. It is possible to choose any of the exsiting
       files by selecting with either mouse or cursor functions.
       If you have chosen the import mode "ALL", only the files
       with the extention *.PEC will be available. After selecting
       the files, data will be imported.
       The result will be displayed by chosing "DATA" -> "GRAPHIC
       EDITOR". The frequency response file can be saved by choosing
       "FILE" -> "SAVE FREQUENCY RESPONSE".


       $3.1.2.21  The chapter for the programmer

       This chapter describes procedures for the external import
       of data in the SPEAKER PRO 6.0 database.

       1. ASCII Export/Import of APL data files

       SPEAKER PRO 6.0 supports the export of *.APL data files.
       This function offers the following advantages:

       - A quick view on the chosen parameters
       - A format being independant the version

       Import interfaces are offered for  any available computer
       aided measuring system.

       The interface is described in the following paragraph.

       Export functions
       ================

       - Using the Import -> INITIALIZE ASCII command, an
         Im-Export directory will be initialized. (Pre-selection
         USERDATA)
       - Load an spl and impedance curve and import it, using the
         import functions.
       - Choose export ASCII in the import directory
       - Enter the target file name
       - Choose export

       The files will be saved in the chosen directory with the
       extention .IPT.

       Operating Import
       ================

       - define new APL file under "FILE"
       - Initialize IMPORT -> INITIALIZE ASCII and the  USERDATA
         directory will be initilalized
       - Choose Import ASCII
       - A directory will be displayed alowing to choose from
         the displayed import files. The result of a successful
         import can be viewed by choosing the "DATA" menu and
         selecting the "GRAPHIC EDITOR" sub-menu.

       Interface description
       ======================

       The imported files will have the file extention *.IPT.
       Those files can be created with an ASCII editor.

       The following rules should be applied :

       - Any comments should be started with a "#" symbol.
       - The files will be found by key words.
         Any key-word has to start with a string
       After the key-word the driver name is expected.

       After the key-word measuring data, the name of the driver
       is expected.

       After the key-word measuring data, the following line
       expects the entering of the measuring data. Always five
       parameters will be expected. If less than five parameters
       are entered, an error message occurs.

       Please note that no comma should be used in the files.
       Make sure that you only use a full stop. To reach a maximum
       import accurarcy  the measurement points of the import files
       should be similar to the SPEAKER PRO 6.0 files.

       The measurement data should be entered as a list.  The first
       column consists of the measureing frequency, and the second
       one of the spl. In case you work with a 0 dB reference, the
       reference level has to be added. In column 3, the phase
       (in DEGREE) of the spl has to be entered. The 4th column
       consists of the impedance level and the 5th one of the
       corresponding phase (in DEGREE).The first comment found,
       will close the data section. The measuring data should
       therefore not be interrupted by space or comment lines,
       since this would be interpreted as  closing criteria.

       The number of comment lines is not limited. Each comment
       has to start with #. As already said comments should not be
       used within a dataline.

       Example :

       # ASCII ex-import file
       # SPEAKER PRO 6.0 Copyright (c) CS Software

       # file         : userdata\ANTON.ipt
       # APL file     : WSP26S
       # driver       : VISATON WSP 26 S
       # date/time    : Sat, Oct 17 18:11:21 1992

       # driver
	@NAME
	VISATON WSP 26 S

       # measurement data
       # Frequency | SPL   [ db] | Phase   | Impedance[ ] | Phase [ ]
       #-----------+-------------+---------+---------------+-----------

     	 @Measuring data
	
         20         60            0         10                0
       	 30         70            0         12                0
       	 40         80            0         15                0
       	 50         90            0         20                0
       	 60         91            0         25                0
       	 70         92            0         20                0
       	 80         93            0         15                0
       	 90         94            0         10                0
       	100         95            0         8                 0
       	150         95            0         8                 0
       	200         95            0         8                 0
       	300         95            0         8                 0
       	400         95            0         8                 0
       	500         95            0         8                 0
       	600         95            0         8                 0
       	700         95            0         8                 0
       	800         95            0         8                 0
	       900         95            0         8                 0
       1000         95            0         8                 0
       1500         95            0         8                 0
       2000         94            0         8                 0
       3000         93            0         8                 0
       4000         90            0         9                 0
       5000         80            0         9.5               0
       6000         70            0         10                0
       7000         65            0         11                0
       8000         63            0         12                0
       9000         62            0         13                0
       10000        60            0         14                0
       12500        50            0         15                0
       15000        40            0         20                0
       17500        40            0         25                0
       20000        41            0         35                0
       #
       #    End of the ASCII import file

     2. SPEAKER PRO 6.0 database extented import facilities
     ======================================================

     The program supports the import of external data files,of both,
     TSP and frequency response curves.

     SPKDATA.EXE will start this import program. The .EXE command can
     here be called up in the usual manner.

     Syntax : SPKDATA mode import file database file <dataindex>

     Mode         : Append    ; extend database by data line
                    Write     ; write specified data line
     Import file  : ASCII file including parameters
     Database file: filename of database ".DBF" without directory
     Data index   : data line index in write mode

     The ASCII import file has the following structure :
     - comments have to start with a #
     - all parameters have to be identified by a keyword
     - both, small and capital letters can be used
     - in the write mode, writing is additive
     As you see, it is possible to write different parts at
     different times. Error messages will appear automatically.
     The display background will be restored.

     If the database does not exist, it will be initialized.

     The following keywords are defined.

     AplFileName    : Name of the file consisting the frequency
                      response curves
     Measr.volume   : Volume of the measuring box
     Type           : Type of speaker
     Mms            : moved mass
     Cms            : compliance
     Re             : ohmic resistance
     Le             : inductivity
     Fms            : free air resonance
     Qms            : mechanical Q-factor
     Qes            : electrical Q-factor
     Qts            : total Q-factor
     Vas            : equivalent volume
     Bl             : magnetic drive
     Sd             : effective piston area
     Spl            : Sound pressure level
     Measur.System  : used measuring system
     Amplitude      : amplitude file name
     Impedance      : impedance file name
     AkuPhase       : acoustical phase
     ImpPhase       : electrical phase

     Example        :

     #---------------------------------------------------------------
     # ASCII import file SPEAKER PRO 6.0 database
     # file       : SPKASCII.IDF
     # driver     : VISATON TIW 400
     # date/time  : Sat Oct 17 18:11:21 1992
     #---------------------------------------------------------------
     #
     #---------------------------------------------------------------
     # generall parameter part
     #---------------------------------------------------------------
     #
        AplFileName        VITIW400
        Measr.Volume       400.0

        Manufacturer       VISATON
        Typ                TIW400
     #
     #---------------------------------------------------------------
     # Thiele Small parameters
     #---------------------------------------------------------------
     #

	    Mms 70.0
	    Cms 0.59
	    Re  6.0
	    Le  1.5
	    Fms 25.0
	    Qms 1.18
	    Qes 0.32
	    Qts 0.25
	    Vas 498.0
	    Bl  14.4
	    Sd  779.3
	    Spl 95.7


     #
     #---------------------------------------------------------------
     # Frequency resopnse and impedance
     #---------------------------------------------------------------
     # The database allows the handling of impedance and frequency
     # response curves measured with various measuring systems.
     # After the keyword MEASR.SYSTEM the measuring system in use
     # can be selected. SPEAKER PRO 6.0 supports MEPEG, DAAS, ATB
     # LMS, MLLSSA and IMP.
     #---------------------------------------------------------------
     #
       Measuring system MEPEG
       Amplitude c:\MEPEG\1702D28.MPG
       Impedance c:\MEPEG\Impedance.MPG
       AkuPhase  None
       ElecPhase None

     #
     #---------------------------------------------------------------


     Note: Please read the second part of the user's manual
           doku t2.txt.




                   End of user's manual part 1




















