See VituixCAD User Manual for details, installation and using.

Download the latest build: VituixCAD2_setup.exe. See also changelog and license agreement.

## Crossover simulation | V2.0 | V1.1 | XSim | ||

Crossover topologies | Formal ladder | x | ✓ | x | |

Free form | ✓ | x | ✓ | ||

Crossover variants | ✓ | x | x | active digitals with different DSP | |

Response data | Single direction | ✓ | ✓ | ✓ | |

Few directions | ✓ | ✓ | x | ||

Quasi full space with responses in two planes | ✓ | ✓ | x | max 360 directions in hor plane + 358 in ver plane = 718 | |

Off-axis with constant or variable angle step | ✓ | ✓ | x | ||

Off-axis angle coverage -179...0...+180 deg or less | ✓ | ✓ | x | ||

CLIO balloon angle decoding | ✓ | x | x | hor & ver planes only | |

EASE balloon angle decoding | ✓ | x | x | hor & ver planes only, optional plane swapping for Klippel NFS | |

VACS balloon angle decoding | ✓ | x | x | hor & ver planes only, optional plane swapping for Klippel NFS | |

Monkey Forest balloon angle decoding | ✓ | x | x | hor & ver planes only | |

Active components | High/low pass, minimum phase (IIR) | ✓ | ✓ | ✓ | 1st, 2nd, Bes, But, Che, L-R 2nd-8th order |

Peak/Notch, minimum phase (IIR) | ✓ | ✓ | ✓ | Parametric EQ, Bandpass, Bandstop | |

All pass, minimum phase (IIR) | ✓ | ✓ | ✓ | 1st, 1st inv, 2nd, 2nd inv | |

Shelving high/low pass (IIR) | ✓ | ✓ | ✓ | 1st, 2nd order | |

Slope, minimum phase (IIR) | ✓ | x | x | ||

High/low pass, linear phase (FIR) | ✓ | x | x | 1st, 2nd, Bes, But, L-R, 2nd-8th order, Horbach-Keele, Brickwall | |

Peak/Notch, linear phase (FIR) | ✓ | x | x | Gain EQ, Phase EQ | |

All pass, linear phase (FIR) | ✓ | x | x | 1st, 2nd, Bes, But, L-R 2nd-8th phase linearisation | |

Shelving high/low pass, linear phase (FIR) | ✓ | x | x | 1st, 2nd order | |

Buffer | ✓ | ✓ | ✓ | ||

OP amplifier | ✓ | x | ✓ | ||

Digital biquad with free coefficients | ✓ | x | x | compatible with RBJ or miniDSP | |

Transfer function file | ✓ | ✓ | x | frd/txt response | |

DSP selection | ✓ | x | x | Behringer, dbx, FourAudio, Generic (RBJ), (Hypex), Marani, miniDSP, Nova, Platin, RAM, t.amp, t.racks, Xilica | |

Passive components | Resistor | ✓ | ✓ | ✓ | |

Capacitor | ✓ | ✓ | ✓ | ||

Inductor | ✓ | ✓ | ✓ | ||

Transformer | ✓ | x | x | ideal | |

Wire | ✓ | ✓ | ✓ | V2.0 man, V1.1 auto | |

Ground | ✓ | x | ✓ | ||

Driver | ✓ | ✓ | ✓ | V2.0 1-n drivers, V1.1 4 drivers. Location XYZ mm, rotation R deg, tilt T deg | |

Library blocks | Standard library blocks | ✓ | ✓ | ✓ | |

User designed blocks | ✓ | x | ✓ | ||

Value calculation with block attributes | ✓ | x | ✓ | ||

Option list for calculation | ✓ | x | x | ||

Driver layout | Linear and curved driver arrays | ✓ | x | x | |

## Graphs | V2.0 | V1.1 | XSim | ||

On-axis magnitude | Total SPL | ✓ | ✓ | ✓ | |

Driver's SPL | ✓ | ✓ | ✓ | ||

Power & DI | Power response | ✓ | ✓ | x | |

Directivity index (DI) | ✓ | ✓ | x | ||

CTA-2034-A spinorama (LW, ER, ERDI, PIR) | ✓ | x | x | ||

Boundary reflections (floor, wall, ceiling) | ✓ | x | ✓ | ||

Off-axis/directivity | Off-axis as Line chart | ✓ | ✓ | x | |

Off-axis as Waterfall | ✓ | ✓ | x | V2.0 3D, V1.1 2D | |

Off-axis as Surface chart | ✓ | ✓ | x | ||

Off-axis as Polarmap | ✓ | ✓ | x | ||

Polart chart at selected frequency | ✓ | ✓ | x | ||

Normalized by selected angle | ✓ | ✓ | x | ||

On-axis phase | Total normal phase | ✓ | ✓ | ✓ | |

Total minimum phase | ✓ | ✓ | x | ||

Total excess phase | ✓ | ✓ | x | ||

Driver's normal phase | ✓ | ✓ | ✓ | ||

On-axis group delay | On-axis normal group delay | ✓ | ✓ | ✓ | |

On-axis excess group delay | ✓ | ✓ | x | ||

Filter | Transfer function magnitude | ✓ | ✓ | ✓ | |

Impedance | Generator's load impedance | ✓ | x | ✓ | |

Buffer's load impedance | ✓ | ✓ | x | ||

Buffers total load impedance | ✓ | ✓ | x | ||

Equivalent Peak Dissipation Resistance (EPDR) | ✓ | x | x | ||

Lookback impedance of driver | x | x | ✓ | ||

Common | Adjustable line color, width and type | ✓ | x | ✓ | |

Copy single/all charts to clipboard | ✓ | x | ✓ | ||

Export single/all charts to image file | ✓ | ✓ | ✓ | png, bmp, emf, exif, gif, ico, jpg, tif, wmf, V2.0: +svg | |

## Optimizing | On-axis SPL | ✓ | ✓ | x | |

Listening window /CTA-2034-A | ✓ | x | x | ||

Driver SPL | ✓ | ✓ | x | V2.0 driver, V1.1 way | |

Power response | ✓ | ✓ | x | ||

Predicted in-room response /CTA-2034-A | ✓ | x | x | ||

Filter transfer function at driver terminals | ✓ | ✓ | x | ||

Preference rating | ✓ | x | x | Olive's patent or customized SM_ON, SM_LW, SM_ER, SM_PIR, SM_SP, AAD_ON, NBD_ON, NBD_PIR, LFX, LFQ, SL_ON, SL_LW | |

Minimum impedance constraint | ✓ | ✓ | x | ||

Maximum gain constraint | ✓ | x | x | ||

On-axis linearity constraint | ✓ | x | x | ||

Frequency range contraint | ✓ | ✓ | x | ||

Optimizes crossover connection | x | x | x | ||

Optimizes component values/parameters | ✓ | ✓ | x | ||

Optimizes block attributes | ✓ | x | x | ||

Ideal (linear) target with tilt | ✓ | ✓ | x | ||

Optional HP and LP | ✓ | x | x | ||

Linear-phase target | ✓ | x | x | ||

Target as txt/frd file | ✓ | x | x | scale, delay, invert, smooth, minimum phase | |

## Parts list | Parts list | ✓ | ✓ | x | |

## Time domain | V2.0 | V1.1 | XSim | ||

Parameters | Sample rate | ✓ | ✓ | x | 44100-192000 Hz |

FFT length | ✓ | ✓ | x | 8192-262144 | |

Taps | ✓ | ✓ | x | V2.0 128-131072, V1.1 512-131072 | |

Window function | ✓ | ✓ | x | V2.0 14 types, V1.1 9 types | |

Delay | ✓ | ✓ | x | ||

Traces | Impulse response | ✓ | ✓ | ✓ | |

Impulse in dBFS | ✓ | x | x | ||

Impulse envelope (ETC) | ✓ | x | x | smoothing 0-8 samples | |

Step response | ✓ | ✓ | ✓ | ||

Square wave response | x | x | ✓ | ||

IR view and export | Buffer out | ✓ | ✓ | x | |

Driver in | ✓ | x | x | ||

Driver SPL | ✓ | x | ✓ | ||

Total axial SPL | ✓ | ✓ | ✓ | ||

Listening window SPL | ✓ | x | x | ||

Export for FIR gear/app | ✓ | ✓ | x | wav, txt, bin | |

## Power dissipation | V2.0 | V1.1 | XSim | ||

Signal parameters | Crest factor | ✓ | ✓ | x | |

Flat spectrum | ✓ | ✓ | ✓ | ||

Pinky spectrum | ✓ | ✓ | x | adjustable LP | |

M-Noise | ✓ | x | x | ||

HP and LP | ✓ | x | x | ||

Graph traces | Power spectrum | ✓ | ✓ | ✓ | |

Current spectrum | ✓ | x | ✓ | ||

Voltage spectrum | ✓ | x | ✓ | ||

Peak voltage spectrum | ✓ | x | x | ||

Total wide-band dissipation | x | x | x | ||

## Radiator simulation | V2.0 | V1.1 | XSim | ||

Radiator types | Infinite baffle | ✓ | ✓ | x | |

Closed | ✓ | ✓ | x | ||

Bass reflex | ✓ | ✓ | x | ||

Double tuned bass reflex | ✓ | ✓ | x | ||

Passive raditor | ✓ | ✓ | x | ||

Band pass type 1 | ✓ | ✓ | x | ||

Band pass type 1 passive radiator | ✓ | ✓ | x | ||

Band pass type 2 | ✓ | ✓ | x | ||

Band pass type 3 | ✓ | ✓ | x | ||

Transmission line | x | x | x | ||

Horn | x | x | x | ||

Wave guide | x | x | x | ||

Leaking ports | x | x | x | ||

Radiator options | Multiple drivers | ✓ | ✓ | x | 1-12 pcs in parallel, series, 2||2, 3||3 |

Isobaric | ✓ | x | x | series or parallel | |

Extra mass | ✓ | ✓ | x | ||

Output resistance | ✓ | ✓ | x | ||

Table alignment | ✓ | ✓ | x | vented with Thiele/Hoge/Bullock, closed with Vas | |

Drivers | Driver database | ✓ | ✓ | x | local, on-line |

Driver database filtering and sorting | ✓ | ✓ | x | V2: advanced, V1.1: simple | |

Calculation of T/S parameters | ✓ | x | x | added mass, dual added mass, closed, known BL/Mms | |

Solver for passive radiator parameters | ✓ | x | x | Vap, Qmp and Mmp of PR. Qa and Ql of box. | |

Impedance models | ✓ | ✓ | x | Le+Leb+Ke+Rss, Z1k+Z10k | |

Graphs | SPL | ✓ | ✓ | x | half space total, cone, vent, passive, maximum, phase, full space total |

Power | ✓ | ✓ | x | real, apparent, maximum | |

Excursion | ✓ | ✓ | x | cone, passive, Xmax/Xsus, force/acceleration | |

Impedance | ✓ | ✓ | x | magnitude, phase | |

Group delay, Filter TF | ✓ | ✓ | x | normal GD | |

Velocity | ✓ | ✓ | x | cone, vent, passive | |

Force | ✓ | x | x | cone, passive | |

Simulated directivity | x | ✓ | x | Omni, cardioid, super-, -hyper-, adjustable gradient | |

Filter transfer function | ✓ | x | x | ||

Misc | Enclosure+driver projects | ✓ | x | x | |

Selectable local driver database | ✓ | x | x | ||

Filter | ✓ | x | x | 6 active filter stages: HP, LP, SLP, PEQx2, L-T | |

Diffraction response | ✓ | ✓ | x | optional for full space total | |

## Diffraction simulation | V2.0 | V1.1 | XSim | ||

On-axis...listening window | ✓ | ✓ | x | ||

Full space simulation | ✓ | ✓ | x | ||

Open baffle | ✓ | ✓ | x | ||

Multiple drivers | ✓ | ✓ | x | 1-50 drivers, line array with c-c step | |

Multiple corners | ✓ | ✓ | x | 3-36 corners | |

Rectangular drivers | ✓ | ✓ | x | ||

Rounded edge | ✓ | ✓ | x | ||

Floor reflection | ✓ | ✓ | x | ||

Wall reflection | ✓ | ✓ | x | ||

Off-axis response export | ✓ | ✓ | x | ver/hor, pos/neg angles, adjustable angle step | |

## Response merging | V2.0 | V1.1 | XSim | ||

LF near field sum with baffle effect response | ✓ | ✓ | x | no baffle loss, spherical loss, diffraction response file | |

LF off-axis with directivity of HF off-axis | ✓ | ✓ | x | ||

LF off-axis with textbook polar pattern | ✓ | x | x | forcing to gradient with adjustable monopole part and frequency | |

Merging of far field LF to far field HF | ✓ | ✓ | x | ||

Magnitude scaling | ✓ | ✓ | x | manual or by LF diameters and far field distance | |

Transition | Adjustable frequency | ✓ | ✓ | x | 40-5000 Hz |

Delay+phase matching | ✓ | ✓ | x | automatic or manual | |

Adjustable blending range | ✓ | ✓ | x | 0, 1/2, 1, 2, 3, 4 octs | |

Output options | Minimum phase | ✓ | ✓ | x | with or without GD of HF response |

Extended data for LspCAD 6.0 | ✓ | ✓ | x | ||

## Response tracing | V2.0 | V1.1 | XSim | ||

Trace color detection | ✓ | ✓ | x | ||

Dark background support | ✓ | x | x | ||

Grid rubber | ✓ | ✓ | x | ||

Trace rubber | ✓ | ✓ | x | ||

Image rubber | ✓ | ✓ | x | ||

Logarithmic Z axis | ✓ | ✓ | x | ||

Minimum phase calculation | ✓ | ✓ | x | ||

Smoothing | ✓ | ✓ | x | ||

## Response calculation | V2.0 | V1.1 | XSim | ||

Multiple output | Ai + B | ✓ | ✓ | x | |

Ai - B | ✓ | ✓ | x | ||

Ai * B | ✓ | ✓ | x | ||

Ai / B | ✓ | ✓ | x | ||

B / Ai | ✓ | ✓ | x | ||

Ai / f | ✓ | ✓ | x | ||

Average by off-axis angle A | ✓ | x | x | ||

Mirror Ai | ✓ | ✓ | x | ||

Normalize Ai | ✓ | ✓ | x | ||

Scale, Delay, Invert Ai | ✓ | ✓ | x | ||

Minimum phase Ai | ✓ | ✓ | x | V2.0 band cropping and slope extension, delay maintain | |

Group delay Ai | ✓ | ✓ | x | ||

Real Ai | ✓ | ✓ | x | ||

B * Ai / A(0) | ✓ | ✓ | x | ||

Mic in Box Ai | ✓ | x | x | ||

Uncap A z B | ✓ | x | x | ||

Ai * piston directivity(Sd, angle) | ✓ | ✓ | x | circular or rectangular | |

Single output | Sum of A | ✓ | ✓ | x | |

Average of A | ✓ | ✓ | x | ||

RMS of A | ✓ | ✓ | x | ||

Maximum of A | ✓ | ✓ | x | ||

## Other calculators | V2.0 | V1.1 | XSim | ||

Time window | ✓ | ✓ | x | ||

Wave length | ✓ | ✓ | x | ||

Near field | ✓ | ✓ | x | ||

Sample time | ✓ | ✓ | x | ||

Box volume | ✓ | x | x | ||

Time align | ✓ | x | x | ||

## Converting IRs to FRs | V2.0 | V1.1 | XSim | ||

File type support | ARTA pir | ✓ | x | x | |

CLIO mls, crp | ✓ | x | x | ||

MLSSA text | ✓ | x | x | ||

Plain text (without sample rate field) | ✓ | x | x | ||

WAV | ✓ | x | x | ||

FFT project/session file | ✓ | x | x | ||

FFT parameters | Left time window | ✓ | x | x | optional, Rectangular, Bartlett, Blackman, Blackman-Harris, Blackman-Nuttall, Cosine 0.50/0.75/1.0, Hamming, Hanning, Nuttall, Tukey 0.25/0.50/0.75 |

Right time window | ✓ | x | x | Rectangular, Bartlett, Blackman, Blackman-Harris, Blackman-Nuttall, Cosine 0.50/0.75/1.0, Hamming, Hanning, Nuttall, Tukey 0.25/0.50/0.75 | |

Minimum phase for calibration file | ✓ | x | x | optional | |

Full resolution FFT (constant f step) | ✓ | x | x | optional | |

Frequency response smoothing | ✓ | x | x | none, 1/24, ..., 1/2 oct, 6th order Butterworth | |

Frequency range cropping | ✓ | x | x | optional | |

Adjustable FFT length | ✓ | x | x | 4k...1M | |

Graphs | Impulse response | ✓ | x | x | impulse response, impulse envelope (ETC), impulse dBFS, step response, overlays |

Frequency response | ✓ | x | x | magnitude, normal phase, minimum phase, excess phase, overlays | |

## Miscellaneous | V2.0 | V1.1 | XSim | ||

User manual | ✓ | ✓ | x | ||

Measurement instructions | ✓ | ✓ | x | ||

Built-in dark theme | ✓ | x | x | ||

Windows | ✓ | ✓ | ✓ | ||

Linux | x | x | x | usable on Wine 6.6 or later, but UX and performance are worse than real Windows | |

macOS | x | x | x |

Few thousand do-it-yourself enthusiasts and commercial companies such as