RoadRunner Technical Specifications

Mode:

Monaural, full duplex

Algorithms:

CCS MUSICAM, ISO/MPEG Layer 2, ISO/MPEG Layer 3, G.722

ISDN Bit Rates:

56, 64, 112 and 128 kb/s

Sample Rates:

16 kHz (G.722) 24, 32 and 48 kHz (Layer 2 and Layer 3)

Audio performance:

G.722, 56/64 kb/s:
MUSICAM 56/64 kb/s:


MUSICAM 112/128 kb/s:
MPEG Layer 3 56/64 kb/s:
MPEG Layer 3 112/128 kb/s:

20 Hz to 7.5 kHz, 66 dB SNR, 0.8% THD + N
20 Hz to 10 kHz at 24 kHz sampling
20 Hz to 8.2 kHz at 48 kHz sampling

20 Hz to 20 kHz at 48 kHz sampling
20 Hz to 15 kHz at 32 kHz sampling
20 Hz to 20 kHz at 48 kHz sampling

85 dB SNR, 0.01% THD+N except where noted