Codec Specifications - RTS Cronus Manual

Cronus

Codec Specifications

Codec Specifications
TABLE 10.
0,3,6,9 G.711 64k
1,4,7,10 G.711 64k
2,5,8,11 G.711 64k
12,16 G.729 8k
13,17 G.729 8k
14,18 G.729 8k
15,19 G.729 8k
20,22 G.723 5.3k
24,26 G.723 6.3k
21,23 G.723 5.3k
25,27 G.723 6.3k
NOTE: A channel consists of a transmitting and a receiving side, so the bandwidth is double for a bi-directional
audio stream.
NOTE: Bandwidth values are approximate maximums, actual bandwidth could be considerably lower with VAD
enabled.
Codec
Coded Rate
Size
VAD
Bosch Security Systems, Inc.
10 100.00
20 50.00
30 33.33
10 100.00
20 50.00
40 25.00
60 16.67
30 33.33
30 33.33
60 16.67
60 16.67
Determines how the audio is compressed/decompressed and the name given to the defined
algorithm
Actual bits per second of the audio in compressed form. This is sent over the network through
various data packets. Network efficiency can be calculated with an IP header for each packet of
X ms of audio.
Amount of audio in each IP Packet, milliseconds (ms).
Voice Activity Detection, when enabled and only when audio is above a certain threshold, sends
packets. Otherwise, a silence packet is sent once, and not again until audio is above the threshold.
Enabling this results in a more efficient network.
Technical Manual
80 60 140
160 60 220
240 60 300
10 60 70
20 60 80
40 60 100
60 60 120
24 60 84
24 60 84
48 60 108
48 60 108
14000 112 224
11000 88 176
10000 80 160
7000 56 112
4000 32 64
2500 20 40
2000 16 32
2800 22.4 44.8
2800 22.4 44.8
1800 14.4 28.8
1800 14.4 28.8
F.01U.118.890 Rev. 23
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