LAB – Dummy Head Microphone

Testi,immagini e progetto a cura di Marco Stefanelli, Ph.D.

Progetto avviato nel gennaio 2021 per la realizzazione di una testa microfonica professionale per registrazione binaurale a basso costo su ispirazione e modello della Neumann KU100.

Directional Pattern: Omnidirectional

Frequency range: 20 Hz – 20kHz

Sensitivity: -33.5±3dB at 1kHz (0dB=1V/Pa) Rl=3.5KO, Vcc=5V

S/N Ratio: 57 dB at 1kHz

Max. SPL, peak before clipping: 130 dB SPL (Typ.) at 1kHz Distortion level 3% max

Output impedance: 2k O ± 30% at 1kHz (RL=3.5k O)

Operating Voltage: 5V (3V~10V)

Microphone diameter: 5.4 mm (0.21 in)

Directional Pattern: Omnidirectional

Frequency range: 60 Hz – 20kHz

Sensitivity: -28±3dB at 1kHz (0dB=1V/Pa) Rl=3.9KO, Vcc=5V

S/N Ratio: 80 dB at 1kHz

Max. SPL, peak before clipping: 122 dB SPL (Typ.) at 1kHz Distortion level 3% max

Output impedance: 2.4k O ± 30% at 1kHz (RL=3.9k O)

Operating Voltage: 5V (3V~10V)

Microphone diameter: 10 mm (0.39 in)

Directional Pattern: Omnidirectional

Cartridge Type: Pre-polarized condenser

Frequency Range: 20 Hz – 20 kHz

Frequency range, ±2 dB: Soft boost grid: 20 Hz – 20 kHz, 3 dB soft boost at 8 – 20 kHz. High boost grid: 20 Hz – 20 kHz, 10 dB boost at 12 kHz

Sensitivity, nominal, ±3 dB at 1 kHz: 20 mV/Pa; -34 dB re. 1 V/Pa

S/N ratio (A-weighted), re. 1 kHz at 1 Pa (94 dB SPL): 71 dB(A)

Total harmonic distortion (THD) (Bare mic without ears): < 1% THD up to 123 dB SPL peak; < 1% THD up to 120 dB SPL RMS sine

Dynamic range: Typ. 100 dB

Max. SPL, peak before clipping: 134 dB

Output impedance: 30 – 40 O

Power supply (for full performance): Min. 5 V – max. 50 V. 48 V phantom power ±4 V for full performance

Microphone diameter: 5.4 mm (0.21 in)

Temperature range: -40°C to 45°C (-40°F to 113°F)

Relative humidity (RH): Up to 90%

Neumann KU100 internal

Primo EM272