Loudspeaker nonlinearities (Bl(x), Kms(x), L(x) , L(i)) | Large Signal Identification (LSI) Power Testing (PWT) | |
Single-valued nonlinear parameters (Xmax , XBl , XC , Voice coil offset Xoffset , Suspension asymmetry AKms) | Large Signal Identification (LSI) Large Signal Identification (LSI3) | Motor + Suspension Check (MSC) |
Thermal parameters (thermal resistances, time constants, capacities, air convection parameter) | Large Signal Identification (LSI) Large Signal Identification (LSI3) Power Testing (PWT) | |
Irregular loudspeaker defects (Rub & Buzz, loose particles, wire beat, bottoming, air leakage noise) | Rocking Mode Analysis (RMA) Transfer Function Measurement (TRF PRO) | Air Leak Detection (ALD) Hi-2 Weighted Harmonic Distortion (Hi-2) Meta-Hearing-Technology (MHT) Spectrogram 3D Limits (3DL) |
Air leakage noise localization (position of modulated noise source) | | Air Leak Detection (ALD) Air Leak Stethoscope (ALS) |
Sound power response | Near Field Scanner (NFS) Polar Far-Field Measurement (POL) Scanning Vibrometer System(SCN) | |
Phase response (minimal-phase, excess-phase) | Transfer Function Measurement (TRF) | Spectrum Analysis (SAN) Sound Pressure Task (SPL) Sound Pressure and Impedance Task (SPL-IMP) |
Group time delay response (total, minimal phase) | Time Frequency Analysis (TFA) Transfer Function Measurement (TRF) | |
Time-frequency analysis (Wigner, cumulative decay spectrum, sonagraph, wavelet, …) | Time Frequency Analysis (TFA) Transfer Function Measurement (TRF) | Spectrogram 3D Limits (3DL) |
Nonlinear harmonic distortion (THD, THD+N, components) | 3D-Distortion Measurement (DIS) Transfer Function Measurement (TRF) | Equalization & Alignment (EQA) Hi-2 Weighted Harmonic Distortion (Hi-2) Spectrum Analysis (SAN) Sound Pressure Task (SPL) Sound Pressure and Impedance Task (SPL-IMP) |
Equivalent Harmonic Input Distortion | Transfer Function Measurement (TRF) | |
Intermodulation distortion (difference-tone and sum-tone IMD) | 3D-Distortion Measurement (DIS) | |
Amplitude intermodulation distortion (AMD) (modulation of the fundamental) | 3D-Distortion Measurement (DIS PRO) | EAR |
Sinusoidal burst measurement | Tone Burst Measurement (TBM) Transfer Function Measurement (TRF) | Sound Pressure Task (SPL) |
Thermal and nonlinear compression (fundamental, harmonics versus voltage) | 3D-Distortion Measurement (DIS) Multi-Tone Measurement (MTON) | Multi-Tone Distortion Task (MTD) |
Voice coil displacement (peak, bottom, dc component, Xmax) | 3D-Distortion Measurement (DIS) Large Signal Identification (LSI) Large Signal Identification (LSI3) Rocking Mode Analysis (RMA) Transfer Function Measurement (TRF) | Dynamic Excursion Check and Control (DCX) Motor+Suspension Check (MSC) T/S Parameter Laser Fitting (TSX) |
HI-2 distortion | 3D-Distortion Measurement (DIS) | Hi-2 Weighted Harmonic Distortion (Hi-2) |
Multi-tone distortion | Linear Parameter Measurement (LPM) Multi-Tone Measurement (MTON) | Multi-Tone Distortion Task (MTD) |
Accelerated life test, power test (durability, parameter variation, maximal input power) | Live Audio Analyzer (LAA) Large Signal Identification (LSI) Power Testing (PWT) | |
Voice coil temperature | 3D-Distortion Measurement (DIS) Live Audio Analyzer (LAA) Large Signal Identification (LSI) Power Testing (PWT) | |
Distortion in reproduced audio signal (contribution of Bl(x), Cms(x), Le(x), Le(i)) | Large Signal Identification (LSI) Power Testing (PWT) Rocking Mode Analysis (RMA) Simulation-Auralization (SIM-AUR) | |
Auralization | Simulation-Auralization (SIM-AUR) | Sound Pressure Task (SPL-Monitoring) |
Distributed mechanical parameters (mechanical vibration scanned on radiator's surface) | Higher Modal Analysis (HMA) Rocking Mode Analysis (RMA) Scanning Vibrometer System (SCN) | |
Modal analysis (natural frequencies, shape of modal vibration, modal loss factor) | Higher Modal Analysis (HMA) Rocking Mode Analysis (RMA) Scanning Vibrometer System (SCN) | |
Accumulated acceleration level (AAL) | Scanning Vibrometer System (SCN) | |
Decomposition into radial and circumferential mode | Rocking Mode Analysis (RMA) Scanning Vibrometer System (SCN) | |
Rocking mode analysis | Rocking Mode Analysis (RMA) Scanning Vibrometer System (SCN) | |