Additional Information; Hidyn Plus™ (Hdp) Noise Reduction; Squelch - Sennheiser EM 3731 Notice D'emploi

Additional information

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Additional information
HiDyn plus™ (HDP) noise reduction
Transmitter
The EM 3731/3732 receivers are equipped with HDP, the Sennheiser noise
reduction system that reduces RF interference. It increases the signal-to-
noise ratio in wireless audio transmission to more than 110 dB.
wideband compander system which compresses the audio signal in the
transmitter in a 2:1 ratio (related to dB) to lift it above the inherent noise
floor of the RF link. In the receiver the signal is expanded in an identical and
opposite way in a 1:2 ratio to restore the original signal, at the same time
reducing the RF noise to below the noise floor of the receiver.
HDP has been specially developed for high quality radiomicrophone
systems.
The EM3731/3732 receivers feature a AES3 digital audio output for digital
mixing consoles. In the receiver the audio signal is digitalized as early as
possible so that the noise reduction (compander) can be realized digitally.
Note:
Only transmitters and receivers that are equipped with
correctly with each other. If non
the dynamic range would be drastically reduced and the transmission
would sound blunt and flat.
switched off.

Squelch

Depending on the strength of the received RF signal, the receiver's audio
output is opened or muted. Via the "Squelch" menu, the squelch threshold
can be adjusted in 15 steps from 0 to 30 μV.
RF link
Inherent
noise
of the RF link
HDP equipment was mixed with HDP,
HDP is permanently active and cannot be
Receiver
HDP is a
HDP can work