| 2 - System information
profiles are defined for male and female voices. In this way, the high-quality microphones of
the SpeechLine Digital Wireless series can unleash their full potential without distortion.
Automatic level management
The level of the audio signal is automatically optimally adjusted so that the speaker's voice
can be heard loud and clear. If necessary, the receiver's output level can be manually adapted
to the input of the mixing console or amplifier.
Automatic interference management
The system immediately reacts to interfering signals such as those coming from DECT
telephones by automatically changing the frequency. This prevents interference and audio
dropouts and ensures an uninterrupted connection. The automatic frequency change is not
noticed by the user of the microphone or by the audience. If several radio links are active for
different speakers at the same time, the respective frequencies are automatically selected so
that they cannot interfere with each other. The frequencies are immediately adapted to newly
added radio links without interfering with the ongoing transmission or even interrupting it.
Future-proof, license-free audio transmission
SpeechLine Digital Wireless operates in the future-proof 1.9 GHz frequency band.
Transmission in this band is not affected by regulatory changes of the digital dividend or by
the auctioning of frequencies. In addition, the frequencies in this band can be used without
a license. With SpeechLine Digital Wireless, you don't have to fear changes to the frequency
band used which could possibly mean having to buy new audio equipment. The acquisition of
a SpeechLine Digital Wireless system is a future-proof investment.
To allow optimum use of the 1.9 GHz frequency band, SpeechLine Digital Wireless offers two
operating modes: For up to 20* links used in parallel, the Adaptive Power Mode ensures
extremely easy startup and a reliable maximum range. The Multi-Room Mode allows you
to adjust the transmission power to allow for a considerably larger number of links. These
adjustment options make SpeechLine Digital Wireless the optimum solution for a great
variety of projects with widely differing installation sizes at the same location.
* depending on the locally approved variant
Tap-proof audio transmission
The encrypted, tap-proof transmission of information is especially important in the corporate
environment. This is why we decided to use 265-bit AES encryption when developing the
SpeechLine Digital Wireless series. Here the security of wireless transmission is ensured by
the generation of a new key each time a new connection is made between transmitter and
receiver. At every meeting and every conference, this guarantees that only the receiver paired
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