LSP CAD 6 PRO bietet neben den umfangreichen Funktionen von LSP-CAD ein einzigartiges Feature an:
die komplett digitale Simulation einer Frequenzweiche mit Abhörfunktion in Real Time.
Dabei wird jedes Bauteil Ihrer Frequenzweiche simuliert und wiedergegeben. So wird es möglich während des
Hörens durch das ändern einzelner Parameter zu testen, welche Auswirkungen die Einstellungen auf das Klangbild ergeben,
z.B. ob ein Hochpaß 2.Ordnung in der Schaltung besser klingt als eines 3.Ordnung. Natürlich können auch alle Bauteilewerte während
der Wiedergabe vergrößert oder verkleinert werden. Durch diese innovative Technik ist es nicht mehr nötig, Spule, Kondensatoren und
Widerstände wieder und wieder zusammen- und auseinander zu löten, um Änderungen an der Frequenzweiche vorzunehmen.
Wird danach das akustische Ergebnis für gut befunden, wird die mit LSP-CAD Pro ermittelte Frequenzweiche mit echten Bauteilen
aufgebaut. Dabei variiert das Ergebnis zwischen der Simulation durch LSP-CAD Pro und der tatsächlich aufgebauten passiven
Frequenzweiche in der Regel um nur ± 0.5 dB!
Für die Emulation benötigt man natürlich die Lautsprecherdaten der einzelnen Systeme, diese können mit gängigen Messprogrammen
wie Clio, MLLSA, Laud etc. gemessen und importiert werden.
LSP CAD 6 PRO Software (Beschreibung des Herstellers)
LspCAD 6 is a software intended for the design of loudspeaker boxes and crossovers.
With LspCAD 6 it is possible to model loudspeaker boxes, passive crossovers, active analog and digital crossovers.
A nice feature is that it is possible to model everything at the same time, i.e. there is no need to do box modeling first
and crossover modeling later, this makes prototyping of new projects easier.
Crossovers and boxes are created from a tray of components, the components are picked from the tray and dropped of the schema.
This allows for a large degree of freedom for the user, on the downside is the problem that the design procedure may become more tedious.
To alleviate this potential problem, the concept of network sets is implemented. Additionally a set of Store/Recall buttons makes it easy
to make rapid comparisons of different designs. Another concept that simplifies designs is the group concept where one can simply group
a number of components and later with a simple mouse click change on one set of component values to another set and see the results
of the changes instantly. Moreover a number of filter templates are available some of them with wizard functionality which makes it easy
to tune the components for desired properties
The boxes are designed with building blocks such as ports, cabinet volumes and driver units. For well-known box types a special wizard
functionality helps the user to pick an optimal alignment for the given driver, each radiating part of a loudspeaker can be linked to a baffle
component that makes it possible to model baffle diffraction and reflections from the closest walls in a listening room.
Crossovers that can be implemented are besides analog pass and active filters also digital filters with unit delays and sum units.
A paradigm that makes the initial prototype modeling simpler is the parameter mode that allows the user to modify parameters such as
crossover frequency and Q value rather than having to fiddle with component values. A generic filter component allows, among other things,
for the modeling of LP/HP filters of various filter order, pole-zero or directform filters imported from eg. Matlab or Octave, digital BiQuad filters,
FIR filters, also a digital equalization filter component makes it possible to invert the frequency response of a given loudspeaker unit in order
to achieve a ruler-flat response in the driver working range.
Components for well-known commercial digital filters such Behringer, dbxPro and XTA is implemented and also optimized.
To be able to achieve a given target frequency response a powerful crossover optimizer can be used. This optimizer also gives the option
to put constraints on things such as component values and resulting load impedance, the unique feature of the load impedance optimization
is that it actually can increase the load impedance while maintaining the desired frequency response. Another feature is that one may lock
the crossover frequency during the optimization.
The tolerance analysis helps to give a view of how the resulting frequency response of a crossover deviates from the original response once,
we add the possibility that components might deviate from their specified values.
Finally the powerful crossover emulator (or auralizer) is a good companion when it comes to evaluating crossovers.
The popular real time update feature in LspCAD 6 gives the user a "What you see is what you get" feeling as the graphs are updated each
time one change e.g. a component value. Similar to earlier releases it is possible to store intermediate work.
The following pages try to highlight the possibilities with LspCAD 6, it is also recommended to download the demo and try it + read the manual
in order to get a deeper insight in what LspCAD 6 can do.
For those who liked LspCAD 5.25 alot, rest assured. LspCAD 5.25 comes bundled with LspCAD 6.
LspCAD comes with a USB copy protection dongle.
PC requirements (recommendations):
- Windows 2000, XP or Vista*
- Screen resolution 1024x768 or better is recommended
- 256MB RAM, 512MB recommended.
- USB connection (for copy protection dongle)
- Direct X 8.0 or later installed
* Currently only tested on 32 bit version of Windows Vista
- Nur in Englisch lieferbar -
