- a FILE submodule with the ability to read files from audio measurement equipment such as Audio Precision's System One, Ariel's SYSid, LinearX's LMS, Liberty Instruments' IMP and Audiosuite, Audiomatica's CLIO, DRA Laboratories' MLSSA, Kemsonic's AMS-PC, Microacoustics' PC AudioLab, and Bunn's AIRR.
- the FILE submodule can handle sound pressure response files for up to 5 observation points, permitting crossover optimization using measured on-axis and off-axis response data. When measurement files for SPL or impedance are read in, they can be scaled in amplitude and corrected for propagation delays.
- the file support feature allows you to take advantage of driver sound pressure and impedance measurements that may be available from your speaker component supplier. This means your simulations will be even more accurate than ever before, as you will be able to make use of actual measured response data.
- addition of a specific CALSOD measurement file format that can be used to import data from other measurement systems or sources of data.
- double ported band-pass enclosures can be simulated. The model used includes port, leakage and absorption losses.
- enhanced modelling of closed-box, vented-box and passive-radiator enclosures, with provision for separate modelling of enclosure absorption and leakage losses, as well as port or passive radiator losses.
- support for optimization of active crossover networks. An IOA submodule has been added to allow the use of ideal operational amplifiers to model active filters.
- an EPD submodule for modelling the off-axis radiation characteristics of individual drivers. They are simulated as rigid pistons mounted on a baffle.
- an impedance curve-fit optimizer that automatically estimates the Thiele-Small driver parameters (Fs, Qts, Qms, Qes, Vas, Bl, Mms, Cms, sensitivity, voice-coil inductance, etc.) from two sets of impedance measurements taken under mass or compliance perturbation conditions.
- an impedance curve-fit optimizer that uses a single impedance measurement of a driver in a vented-box to determine the driver's Thiele-Small driver parameters and tuning (Fb, Fs, Alpha, Qts, Qms, Qes, Vas, Bl, Mms, Cms, sensitivity, voice-coil inductance, etc.). These data can be used to check the tuning of vented-box systems. The driver sound pressure response is automatically simulated from the measured parameters.
- an impedance curve-fit optimizer which automatically varies Qeq and Deq parameters in MPE submodules to best match impedance data. This greatly simplifies the task of curve-fitting, as well as improving the accuracy of the models that you create.
- an SPL curve-fit optimizer which can automatically vary Qeq and Deq parameters in MPE submodules to best match sound pressure data. This speeds the task of curve-fitting, as well as improving the accuracy of the models that you create.
- an extended SPK submodule that permits the aiming of the principal radiation axis of each driver when positioned on the baffle.
- an RAB submodule that allows you to specify up to 5 off-axis observation points using a simple to use polar coordinate system.
- an RGE submodule to simulate the effects of room gain on the low-frequency response of a loudspeaker system.
- the SEN submodule has been extended to permit you to include the following sets of information for the driver: [Re, Fs, Qes, Vas], [Re, Bl, Sd, Mms], or [Re, No]. These parameters are then used to compute the sensitivity of the driver directly within CALSOD.
- an extended BDS submodule to allow the effects of baffle diffraction to be removed from a driver model, using a new DEBOOST option.
- the crossover network optimizer can take into account the sound pressure response at multiple observation points, often leading to better off-axis performance of the speaker system.
- a facility to overlay sound pressure response plots at up to 5 observation points, making it easy to compare the response at different on-axis and off-axis locations.
- up to 8 different driver models can be included in the simulations, permitting much more complex systems to be analyzed.
- a printed user's manual, completely revised and expanded, which comes to about 370 pages of text in an A4-size 3-ring binder. The use of all major features is explained by suitable tutorial examples. All figures are provided in printed form and are referred to in the text.
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