What are the features of SpeechLine Digital Wireless?
Automatic frequency management
SpeechLine Digital Wireless finds free transmission frequencies reliably and fully automatically. Manual intervention is not necessary in the search for a free frequency. This means that your wireless microphone and the receiver are ready for use within an extremely short time: connect them, switch them on – and that’s all.
The transmitter and the receiver are pre-paired at the factory and immediately work together. If necessary, this pairing can be changed at any time, for example in order to switch from a clip-on microphone to a handheld transmitter. It is also possible to use several transmitters, such as when each lecturer at a university uses their own microphone.
Automatic microphone sensitivity adjustment
It is not necessary to manually adapt the input sensitivity to the microphone used, and the audio level is automatically adjusted for different speakers. In addition, different sound 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 with the transmitter is able to decode the audio signal. Encryption cannot be deactivated – making SpeechLine Digital Wireless secure at all times.
Extremely long battery life
It is not necessary to replace or recharge the accupack during operation. The battery life is about 15 hours – enough for even a very long conference day. Intelligent energy management using adaptive transmission power maximizes the battery life.
To charge the accupacks, it is not necessary to remove them from the transmitters. They can be recharged using the optional CHG 2 charger for handheld and pocket transmitters or directly via the supplied USB charging cable.
Easy control using the Sennheiser Control Cockpit software
Sennheiser Control Cockpit is the central software for easy handling, control and maintenance of the entire SpeechLine Digital Wireless system. The easy-to-use Sennheiser Control Cockpit software provides a global overview of all network enabled SpeechLine Digital Wireless devices at all times. It shows all status information at a glance and makes setting adjustments for one or multiple devices at the same time very easy. The room overview connects the locations of all components to their respective status information, so the user always knows the location and status of a specific device. The Sennheiser Control Cockpit is accessible everywhere in the intranet via a web browser across all platforms. As a result, the software allows you to manage even huge setups with hundreds of devices with minimal effort.