Advanced call quality – TANDBERG D12155-10 User Manual

Page 48

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48

TANDBERG Videoconferencing System

Advanced use

Advanced call quality

* - Requires option ‘Presenter’. To check which options are installed, see the ‘System Info’ menu in ‘Diagnostics’.
** - E2 Only

NOTE

T

HE

‘A

UTO

SETTINGS

ARE

RECOMMENDED

CHOICES

FOR

MOST

CASES

. T

HE

OTHER

AUDIO

,

VIDEO

AND

RESOLUTION

SELECTIONS

MADE

IN

THIS

MENU

WILL

OVERRIDE

THE

SELECTIONS

MADE

IN

THE

‘C

ALL

Q

UALITY

MENU

AND

ARE

NOT

RECOMMENDED

TO

BE

CHANGED

FOR

NORMAL

USE

.

Audio
Auto

The setting of ‘Audio: Auto/High/Normal’ in ‘Call Quality’ will be used.

G.722.1

Compressed high quality audio (7 kHz).

G.722

High quality audio (7 kHz).

G.728

Compressed normal quality audio (telephone quality, 3.1 kHz).

G.711

Normal quality audio (telephone quality, 3.1 kHz).

Off

No audio is transmitted.

Video
Auto

Optimized video quality depending on available bandwidth.

H.264**

Bandwidth efficient video compression and decompression.

H.263

Normal video compression and decompression.

H.261

Legacy video compression and decompression.

Off

No video is transmitted.

Resolution
Auto

The setting of ‘Video: Auto/Motion/Sharpness’ in ‘Call Quality’ will be used, see tip above.

4CIF *

Digital Clarity (704 x 576 pixels), only for H263.

CIF

High resolution video (352 x 288 pixels).

QCIF

Low resolution video (176 x 144 pixels).

H.331
Off

Standard two-way communication with quality negotiation between both sides.

On

Used when broadcasting a video conference from one site to many others, e.g. via satellite,
where there is no possibility to negotiate quality between the receivers and the originator due to
one-way communication.

Status Format
Provides call quality feedback on the status line.
Auto

Video off/on, Audio off/normal/high

Advanced

Shows video/audio standards (Example: Video: H261 CIF, Audio: G722).

R

ESOLUTION

, A

UTO

FUNCTIONALITY

(

IF

SUPPORTED

BY

FAR

END

):

W

HEN

‘V

IDEO

: M

OTION

’ :

L

OW

BANDWIDTHS

: CIF, SIF

H

IGH

BANDWIDTHS

:

I

CIF,

I

SIF

W

HEN

‘V

IDEO

: S

HARPNESS

’ :

4CIF, 4SIF, VGA, SVGA, XGA**

TIP

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