PictureTel Concorde 4500, Руководство администратора, Страница: 114 / 250

CONFIGURING AND ADJUSTING THE VIDEO AND AUDIO
5-14
The following table lists the manual format settings for SG4 and
H.320 modes.
To set the audio transmission format:
1. From the Set Audio Configuration menu, choose Set Audio Send
Format .
The Audio Send Format menu appears.
Table 5-6: Audio Manual Format Settings
Setting Definition
PT716plus Enables performance comparable to PT724 at
16 kbps, with higher performance at 24 and 32
kbps. (If you select PT716plus, the Concorde
automatically chooses the appropriate rate for
your system.)
PT724 Enables the best audio quality available for
your system at 24 kbps using the PictureTel
proprietary PT724 audio algorithm
G.722 56k Enables the best audio quality at 56 kbps
G.722 48k Enables better audio quality than G.711 and
G.728 at 48 kbps
G.728 Enables a 3.2 kHz bandwidth audio, similar to
that of an ordinary telephone, using less
channel bandwidth than G.711, thus
providing better video quality
G.711 Enables a 3.2 kHz bandwidth audio, similar to
that of an ordinary telephone
F Y I
F.Y.I.
If you conÞgure either Data Port A or B for synchronous
data under H.320, only the compatible audio formats are
displayed.