Binaural/Stereo Compatible "Dummy-Head" Microphone
(Sphere Stereo Microphone)
The Sphere Stereo Microphone ESLAB is the embodiment of a newly-developed stereo main-microphone design using an plastic acoustic baffle. "Dummy head" systems are well-known for the excellent results they can provide, but the recordings made with such systems are suitable for headphone listening only.
The "Sphere" microphone was developed so that comparable results could be achieved for loudspeaker playback.
Such a microphone would not only provide interaural arrival-time cues, but also spectral-vs-angular incidence information.
|Information about the ESLAB:|
ACCESSORIES Power Supply/Equalizer, Microphone Cable (included).
The following data were measured on the raxis of the capsules.
|Classification of the special capsules:||pressure transducer|
|Recording angle for full stereo reproduction:||90°|
|Frequency range:||18 Hz-20 khz|
|Sensitivity:||100 mV/Pa (10 mV/mu bar)|
|Equivalent noise level, CCIR:||28 dB|
|Equivalent noise level, A-weighted:||21 dB-A|
|Maximum sound pressure level for 0.5% THD:||117 dB SPL|
|Output voltage at maximum SPL:||0.8 V|
|Source impedance:||600 Ohm|
|Minimum recommended load resistance:||6000 Ohm|
|Powering:||1.5 battery (included)|
|Current consumption per channel||0.05 mA|
|Weight:||appr. 0.2 kg|
|Diameter of the sphere:||150 mm|