Sennheiser ADN C1 - Adding Conference Units to the Conference System During Operation; Recording a Conference

ADN Digital Conference System | 77
Running a conference
Muting the conference units’ loudspeakers for contributions coming from the
conference units’ microphones
The “Mic Loudspeaker Mute” function allows you to mute the conference units’
loudspeakers so that contributions coming from the conference units’ microphones
are not reproduced (see page 58 or page 131).
Adding conference units to the conference system
during operation
You can add conference units to the conference system during operation.
All delegate units are ready for immediate use. The chairperson units have to be re-
initialized. Note that this will interrupt the conference (see page 54 or page 124).
Recording a conference
The ADN CU1 central unit allows you to record the floor channel and the channels
of all active conference units as audio files on a USB mass storage device.
Recording possibilities and requirements
Recorded files The audio files are recorded in WAVE PCM sound file format (mono, 32 kHz/16 bit).
The floor channel is recorded throughout the entire conference so that the course
of the conference can be retraced. In addition to the floor channel, the channels of
all active conference units are recorded as individual audio files. The audio data is
not encrypted.
For recording 1 hour of conferencing, you require approx. 230 MB of memory space
per channel. If all channels of the conference system are being used (floor channel
and 10 conference unit channels), you require approx. 2.5 GB of memory space.
The USB mass storage device must meet the following requirements:
The volume of the conference units’ loudspeakers can also be set via the
central unit’s operating menu (see page 56) or the “Conference Manager”
software (see page 130).
Use the “Feedback Suppression” function to be able to increase the floor
channel volume by up to 5 dB without feedback occurring (see page 57 or
page 132).
When adding conference units to the conference system, observe the
maximum number of conference units in order to ensure operational reli-
ability (see page 15).
USB mass storage device Requirements
Recommended memory size > 500 GB
File system
*
* When the maximum file size is reached (FAT32 = 4 GB), the recording is automatically
split in several files. With NTFS files, the file size is limited by the memory size of the data
storage device and the recordings don’t have to be spit in several files.
NTFS
FAT32
Partition 1
Connection USB type A plug
Interface USB 2.0
Power supply via USB socket (approx. 500 mA) or separate
mains unit