User manual

16 SCOOP E-Z - User Manual 55 000 026 – Ed. B
This document is the property of AETA and can not be duplicated without authorisation November 2001
- Sample frequency : 48kHz
Maximum Gain ( Input to Output ) +87dB
Signal to Noise ration 84dBrms
Bandwidth
20Hz – 20 000 Hz ± 0.5dB
Distortion ( THD+N) < 74 dB (0.02%) @ 950Hz
Table 2 – Audio performance
B) In ISDN mode
Data rate Sample frequency Bandwidth Algorithm
128 kbit/s 16/24/32/48kHz 20Hz - 20kHzmax MPEG II J52
128 kbit/s 16/24/32/48kHz 20Hz – 20kHzmax MPEG II
128 kbit/s 32kHz 20Hz – 15 kHz 4S/B
64 kbit/s 24kHz 20Hz – 10.5kHz MPEG II J52
64 kbit/s 24kHz 20Hz – 10.5kHz MPEG II
64 kbit/s 48kHz 20Hz - 8.2kHz MPEG II
64 kbit/s 16kHz 20Hz - 7kHz G722 SRT/H242
64 kbit/s 16kHz 300Hz – 3.5kHz G711- phone
64 kbit/s 32kHZ 20Hz – 15kHz TDAC
Table 3 – ISDN mode
Note : In MPEG II without J52, Scoop E-Z 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.