Sennheiser SpeechLine User manual

SpeechLine Digital Wireless
Sennheiser electronic GmbH & Co. KG
Am Labor 1, 30900 Wedemark, Germany, www.sennheiser.com
SpeechLine Digital Wireless - v4.1, 01/2021
System Documentation
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SpeechLine Digital Wireless: System Information
1
SYSTEM INFORMATION
SpeechLine Digital Wireless:
System Information
For more information about the individual products in the
SpeechLine Digital Wireless series, see „The Products of the
SpeechLine Digital Wireless Series“.
For information about the available accessories, see „Acces-
sories“.
For information about planning a complete SpeechLine Digi-
tal Wireless system, see „SpeechLine Digital Wireless: Sys-
tem planning“.
You can find instruction manuals for all products in the
SpeechLine Digital Wireless series under „SpeechLine Digi-
tal Wireless: Instruction manual“.

SpeechLine Digital Wireless: System Information
2
►
SpeechLine Digital Wireless is the first digital wireless micro-
phone system designed specifically for the spoken word.
SpeechLine Digital Wireless is a future-proof solution that’s
easy to set up, use and manage and that lets the presenter
concentrate on their words, not on the technology.
SpeechLine Digital Wireless comprises mobile transmitters
(handheld or bodypack) tailored for speech applications,
speech optimized condenser microphones (a microphone cap-
sule for the handheld transmitter, a clip-on or headset micro-
phone for the bodypack transmitter) and a rack receiver. The
transmitters are powered by rechargeable lithium-ion accu-
packs with a battery life of more than 15 hours. The accupacks
can be recharged with the charger or via USB. SpeechLine
Digital Wireless has an automatic frequency management fea-
ture that automatically searches for free frequencies on site,
thus eliminating the need for time-consuming frequency plan-
ning in advance. In addition, the automatic interference man-
agement function always ensures a stable wireless
connection, and thus provides maximum transmission reliabil-
ity. The automatic microphone sensitivity adjustment makes
the setup even more convenient since there is no need for
manual level adjustment. What is more, network integration
enables SpeechLine Digital Wireless to be remote controlled
and monitored using a media control system (e.g. AMX, Cre-
stron) or the browser-based Sennheiser Control Cockpit soft-
ware.

Focus on the spoken word
3
Focus on the spoken word
►
The spoken word is and remains the most personal and pow-
erful instrument of communication we know. It allows us to
convince people, to impart knowledge and to voice opinions,
thoughts and views as well as emotions. That is why it is so im-
portant that none of the content is lost when audio devices
such as wireless microphones and the associated receivers
are used.

Focus on the spoken word
4
SpeechLine Digital Wireless – the profession-
al solution for speakers, lecturers and pre-
senters
►
The best wireless microphones and receivers are those which
the speaker does not need to think about because they are
ready for immediate use, automatically establish the most re-
liable radio link and provide maximum transmission reliability
in every application and all day long. The microphones and the
receiver of the SpeechLine Digital Wireless series are de-
signed for optimum speech intelligibility, offer maximum se-
curity thanks to encrypted transmission, and provide for
seamless integration into an existing conference system, a
media control system or a telephone system. The unobtrusive
design blends in perfectly with your conference or training
room, the auditorium or the presentation stage.

Focus on the spoken word
5
Typical applications
Excellent speech intelligibility, easy handling and convenient
control are to the fore at all times, regardless of whether
SpeechLine Digital Wireless is used in presentations, meet-
ings or telephone conferences.
Presentations
►
In the case of a presentation held before a large audience,
such as in an auditorium or a large conference room, it is es-
sential that every word can be understood. If active speakers
walk around during the presentation or turn away from the au-
dience, they are completely intelligible at all times thanks to
SpeechLine Digital Wireless.

Focus on the spoken word
6
Meetings
►
Good speech intelligibility and easy handling of the micro-
phone system are important requirements for professional
meetings. The larger the conference or training room, the
more helpful is an audio system which enhances speech intel-
ligibility. In large conference rooms in particular, a speaker
seated at one end is difficult to understand at the other end.
When the speaker turns in different directions, for example in
order to address individual participants, he is difficult to un-
derstand in the other direction in each case. SpeechLine Digi-
tal Wireless does not restrict the freedom of movement of
active speakers.

Focus on the spoken word
7
Teleconferences
►
In modern office life, teleconferences are becoming more and
more important for the cooperation of international teams. As
a telephone alone can only offer inadequate speech transmis-
sion for all participants in the room, the SpeechLine Digital
Wireless system can easily be connected to an existing tele-
conference unit such as the Sennheiser TeamConnect system.
This processes the audio signals and establishes the connec-
tion to the remote participants.

Focus on the spoken word
8
What are the features of SpeechLine Digital
Wireless?

Focus on the spoken word
9
Automatic frequency management
SpeechLine Digital Wireless finds free transmission frequen-
cies 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 possi-
ble 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 ad-
justed for different speakers. In addition, different sound pro-
files 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 adjust-
ed so that the speaker's voice can be heard loud and clear. If
necessary, the receiver's output level can be manually adapt-
ed 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 chang-
ing the frequency. This prevents interference and audio drop-
outs 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 au-
tomatically selected so that they cannot interfere with each
other. The frequencies are immediately adapted to newly add-
ed radio links without interfering with the ongoing transmis-
sion or even interrupting it.

Focus on the spoken word
10
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 auction-
ing 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 equip-
ment. The acquisition of a SpeechLine Digital Wireless system
is a future-proof investment.
To allow optimum use of the 1.9 GHz frequency band, Speech-
Line 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 pow-
er to allow for a considerably larger number of links. These ad-
justment 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 espe-
cially 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 wire-
less 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 guaran-
tees 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 op-
tional CHG 2 charger for handheld and pocket transmitters or
directly via the supplied USB charging cable.

Focus on the spoken word
11
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 en-
abled SpeechLine Digital Wireless devices at all times. It
shows all status information at a glance and makes setting ad-
justments for one or multiple devices at the same time very
easy. The room overview connects the locations of all compo-
nents to their respective status information, so the user al-
ways knows the location and status of a specific device. The
Sennheiser Control Cockpit is accessible everywhere in the in-
tranet via a web browser across all platforms. As a result, the
software allows you to manage even huge setups with hun-
dreds of devices with minimal effort.
www.sennheiser.com/control-cockpit-software

The Products of the SpeechLine Digital Wireless Series
12
The Products of the SpeechLine Digital
Wireless Series
For information about the available accessories, see „Acces-
sories“.
The SL Rack Receiver DW receiver
►
The 9.5" rack receiver (SL Rack Receiver DW) is the core of the
SpeechLine Digital Wireless system. Thanks to the bi-direc-
tional communication between the rack receiver and the
transmitter, all transmitter settings can be adjusted on the re-
ceiver. The receiver's automatic frequency management elim-
inates the need for manual frequency setting and the
automatic interference management guarantees maximum
transmission reliability. The user-friendly pairing function en-
sures a reliable connection between transmitter and receiver.
Network integration enables the receiver to be remote con-
trolled and monitored using a media control system (e.g. AMX,
Crestron) or the Sennheiser Control Cockpit software. The an-
tennae can either be mounted to the rear of the receiver or to
the front of a rack. Antenna cables of different lengths also al-

The Products of the SpeechLine Digital Wireless Series
13
low mounting the antennae remotely from the receiver. The
antenna cables are available as accessories.
For information about installation and operation, see the in-
struction manual: „SL Rack Receiver DW“

The Products of the SpeechLine Digital Wireless Series
14
SL Multi-Channel Receiver DW
►
The SpeechLine Multi-Channel Receiver with its 2 or 4 chan-
nels is the perfect addition to the SpeechLine series. Thanks to
its unobtrusive design, the Multi-Channel Receiver can be in-
stalled quickly and easily in any room, whether on the wall or
ceiling. The device can be operated with a single network ca-
ble, thanks to PoE and Dante. Complex analog audio cabling is
a thing of the past. The Multi-Channel Receiver also offers a
convenient solution for existing installations. Thanks to an in-
tegrated auto mixer and the analog mix output, all audio chan-
nels can be used simply as a sum signal. The audio mix is also
available digitally via Dante, which allows an extension of the
existing setup without exchanging the DSP. Due to the bidirec-
tional communication between receiver and transmitter, all
settings of the mobile transmitters can easily be made in the
Sennheiser Control Cockpit. The receiver's automatic fre-
quency management eliminates the need for manual frequen-
cy setting and the automatic interference management
guarantees maximum transmission reliability. The user-
friendly pairing function ensures a reliable connection be-
tween transmitter and receiver. Network integration also
makes it possible to remotely control and monitor the receiver

The Products of the SpeechLine Digital Wireless Series
15
via a media control system (e.g. AMX, Crestron). Due to the in-
tegrated antennas, a complex antenna installation is no longer
necessary.
For information about installation and operation, see the in-
struction manual: „SL MCR DW“

The Products of the SpeechLine Digital Wireless Series
16
The handheld transmitter
►
The handheld transmitter (SL Handheld DW) is ideal when
several persons are speaking at the same time, such as in in-
terviews or when queries come from the audience. You can re-
place the microphone capsule if necessary. The handheld
transmitter is supplied with the high-quality MME 865-1 mi-
crophone capsule. The MME 865-1 has excellent presence and
high feedback rejection and is specially designed for speech
applications.
Thanks to its easy handling, the handheld transmitter is avail-
able to the speaker for immediate use, and no further instruc-
tion is necessary. The functions of the handheld transmitter
have been reduced to a minimum to allow stress-free speaking
during the presentation and to ensure that the speaker is not
distracted by unnecessary operating options.
For information about installation and operation, see the in-
struction manual: „The SL Handheld DW“

The Products of the SpeechLine Digital Wireless Series
17
The bodypack transmitter
►
The compact, robust bodypack transmitter (SL Bodypack DW)
is compatible with all Sennheiser headset and clip-on micro-
phones (e.g. SL Headmic 1 or MKE 1). Thanks to the bi-direc-
tional communication between the transmitter and the
receiver, no settings need to be adjusted on the transmitter.
The transmitter's LC display indicates the link name, the bat-
tery status and the reception quality. The functions of the
bodypack transmitter have been reduced to a minimum to al-
low stress-free speaking during the presentation and to en-
sure that the speaker is not distracted by unnecessary
operating options. With the easy-to-access mute switch, the
transmitter can be muted if necessary.
For information about installation and operation, see the in-
struction manual: „The SL Bodypack DW“

The Products of the SpeechLine Digital Wireless Series
18
The wireless SL Tablestand 133-S DW
►
The wireless SL Tablestand 133-S DW is designed for your
speech. It is compatible with all Sennheiser XLR-3 goose neck
microphones, making it ideal for podium discussions, speech-
es and presentations.
Because it is completely cable free, the SL Tablestand 133-S
DW is extremely versatile and suited for a wide range of appli-
cations.
The SL Tablestand 133-S DW can be charged either wirelessly
or via USB. The CHG 2W wireless charging base for two mobile
devices is available separately. The SL Tablestand 133-S DW
is delivered with a rechargeable battery that lasts up to 10
hours.
The Sennheiser Control Cockpit software can be used to mon-
itor and control the wireless table stand remotely.
For information about installation and operation, see the in-
struction manual: „The SL Tablestand 133-S DW“

The Products of the SpeechLine Digital Wireless Series
19
The wireless SL Tablestand 153-S DW
►
The wireless SL Tablestand 153-S DW is designed for your
speech. It is equipped with an XLR-5 socket to provide a hard-
wired connection to the MEG 14-40-L-II B goose neck micro-
phone.
Because it is completely wireless, the SL Tablestand 153-DW
is the perfect solution for ad hoc press conferences or panel
discussions in any environment.
The SL Tablestand 153-S DW can be charged either wirelessly
or via USB. The CHG 2W wireless charging base for two mobile
devices is available separately. The SL Tablestand 153-S DW
is equipped with dedicated charging status LEDs to clearly
show the battery life.
The Sennheiser Control Cockpit software can be used to mon-
itor and control the SL Tablestand 153-S DW remotely.
For information about installation and operation, see the in-
struction manual: „The SL Tablestand 153-S DW“