Technical Description of TANDBERG 8000 with software version E3/B8
D12008 Rev. 11
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4.5.7
VCR Audio Features
•
When a VCR is connected to Audio In 6- and VCR is selected on the remote control- the
audio from the VCR is transmitted to the other side. The audio will also be heard in the local
loudspeaker.
•
When recording, both local and far end audio will be recorded when VCR is connected to
Audio Out 3.
•
Some VCRs (and some other recording equipment) connect the signal on their input directly
to the output when in idle or record mode. This feedback loop will cause echo, both locally
and on the remote side. The Codec has a facility that automatically detects and removes this
feedback loop. This feature is provided on the Audio in 6 / Audio out 3 pair of connectors
only.
•
VCR Ducking
automatically reduces the audio level during a VCR transmission
when one or
several persons speak (from either site). ). I.e. when audio is detected by either Microphone
1-3, Audio Input 4-5 or the incoming audio, VCR Ducking will decrease the audio from
Audio Input 6 (VCR). VCR Ducking will automatically adjust the level of the VCR input
back to normal if no other audio (than that of the VCR) is detected. This allows for easy
voice-over commentary during a VCR broadcast.
4.5.8
Telephony
The system supports point-to-point voice only calls both on the ISDN and IP interfaces, by
using the audio compression algorithms described in ch. 4.5.11. See also ch. 4.7 ‘TANDBERG
MultiSite’ for adding telephony into a MultiSite call.
4.5.9
Analogue Telephone add-on (US option only)
It is possible to bring in a telephone participant in the videoconference. This is called telephone
add-on and is similar to the VCR mode in audio functionality. This feature requires extra
analogue telephone add-on equipment.
Please, note the TANDBERG 8000 has the ability to include ISDN telephone calls to mobile
phones or analogue phones in a video meeting without any external equipment (ref. Ch. 4.7).
4.5.10
Microphone Off
Pressing the Mic off key on the remote control will mute audio from Mic1, Mic2, Mic3, and
Audio in 4. It will not mute audio from Audio in 5 and Audio in 6. When the microphone is
turned off any and any of the microphones detects audio, the
mic off
symbol will flash to warn
the user.
