User manual

55 000 033 – Ed. D SCOOP STUDIO - User manual 13
This document is the property of AETA AUDIO SYSTEMS and can not be duplicated without authorisation March 2006
B) In ISDN mode
Data rate Sample
frequency
Bandwidth Delay Algorithm
128 kbit/s 48kHz 20Hz - 20kHz 137ms MPEG II (- / J52 )
128 kbit/s 32kHz 20Hz – 15kHz 202ms MPEG II (- / J52 )
128 kbit/s 24kHz 20Hz – 10.4 kHz 268ms MPEG II (- / J52 )
128 kbit/s 16kHz 20Hz – 7.2 kHz 398ms MPEG II (- / J52 )
128 kbit/s 32kHz 20Hz – 15 kHz 7ms 4SB ADPCM
64 kbit/s 48kHz 20Hz – 20kHz 163ms MPEG II (- / J52 )
64 kbit/s 32kHz 20Hz – 13.4kHz 202ms MPEG II (- / J52 )
64 kbit/s 24kHz 20Hz – 10.4 kHz 268ms MPEG II (- / J52 )
64 kbit/s 16kHz 20Hz – 7.2 kHz 400ms MPEG II (- / J52 )
64 kbit/s 32kHZ 20Hz – 15kHz 80ms TDAC
64 kbit/s 16kHz 20Hz - 7kHz 11ms G722 SRT/H242
64 kbit/s 16kHz 300Hz – 3.5kHz 17ms G711- phone
Table 3 – ISDN mode
Note : In MPEG II without J52, Scoop Studio is compatible with other manufacturer
codecs.
C) POTS mode - CELP Algorithm
Data rate Audio quality
Bandwidth : 40 Hz to 7 kHz (@ 24 kbps data rate)
12Kbit/s
14.4Kbit/s
16.8Kbit/s
19.2 Kbit/s
21.6 Kbit/s
24.0 Kbit/s
3.6kHz
4.3kHz
5.1 kHz
5.7 kHz
6.3 kHz
7.2 kHz
24 kbit/s can typically be achieved in all countries
that support V.34 modems on their public
switched networks.
Higher rate depends on line quality.
The CELP algorithm is optimised running at 24
kbit/s.
Table 4 – CELP
Note : CELP is a proprietary algorithm of France Telecom CNET