Polycom EX Guía Del Software

API Guide for ViewStation EX, ViewStation FX, and VS4000 

266

www.polycom.com/videodocumentation

This command sets or gets the H.331 audio protocol for transmitting audio in 
broadcast mode. Broadcast configuration parameters should be set to 
accommodate the lowest common denominator of the systems which are 
receiving the broadcast.

h331audiomode g728

ITU-T Recommendation for audio encoding using Low 
Delay Code Excited Linear Prediction (CELP). The 
bandwidth of the analog audio signal is 3.4 kHz whereas 
after coding and compression the digitized signal 
requires a bandwidth of 16 Kbps.

CCITT (now called ITU-T, which is International 
Telecommunications Union's Telecommunications 
Standardization Sector) Recommendation entitled 
"Pulse Code Modulation (PCM) of Voice Frequencies." 
G.711 defines how a 3.1 kHz audio signal is encoded at 
64 Kbps using PCM and either mu-law (US and Japan) 
or A-law (Europe).

Same as g711u, but uses A-law (Europe).

CCITT Recommendation that defines how a 7.5 kHz 
audio signal is encoded at a data rate of 64 Kbps.

CCITT Recommendation that defines how a 7.5 kHz 
audio signal is encoded at a data rate of 64 Kbps.

Turns the audio mode off.

Returns the current setting for this option.