Quasar CM-3211 Series Przewodnik Instalacji Pobierz pdf (Strona 105)

Quasar CM-3211/CM-4221 Series User and Installation Guide

7.4.6 Audio

From the Audio screen you can select the Transmission Mode, Server Gain, Bit Rate, and enable or

disable storage of the audio recording.

Figure 86: Audio Screen

Transmission Mode

 Full-duplex (Talk and listen simultaneously) – In the Full-duplex mode, the local and remote

sites can communicate with each other simultaneously, i.e. both sites can speak and be

heard at the same time.

 Half-duplex (Talk or listen, not at the same time) – In the Half-duplex mode, the local or

remote site can only talk or listen to the other site at one time.

 Simplex (Talk only) – In the Talk only Simplex mode, the local/remote site can only talk to the

other site.

 Simplex (Listen only) – In the Listen only Simplex mode, the local/remote site can only listen

to the other site.

 Disable – Select this option to turn off the audio transmission function.

Server Gain Setting

Set the audio input/output gain levels for sound amplification. The audio gain values are adjustable

from 1 to 6. The sound will be turned off if the audio gain is set to Mute.

Bit Rate

Selectable audio transmission bit rate include 16 kbps (G.726), 24 kbps (G.726), 32 kbps (G.726),

40 kbps (G.726), µLAW (G.711) and ALAW (G.711). Both µLAW and ALAW signify 64 kbps, but in

different compression formats. A higher bit rate enables higher audio quality, but requires higher

bandwidth.

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