Telos Zephyr Xstream - Manual (Page 337)

USER’S MANUAL
Appendix 6 – Special Operational Modes 325
These work similarly to the equivalent Layer‐3 modes.
Offers 20 kHz audio frequency response when the sample rate is 48 kHz and 15
kHz response when the sample rate is set to 32 kHz.
L2 Mono 128
This mode is very common mode used in the voice‐over industry. It works in the
same way as the other Mono 128 modes.
Offers 19 kHz audio frequency response when the sample rate is set to 48 kHz
and 15 kHz response when the sample rate set to 32 kHz.
Receive:
The appropriate Receive mode will be determined by the encoding or Transmit mode used at
the far end.
The Xstream's Receive modes in V.35 Single mode are:
L3
Receives all Layer‐3 modes available in V.35 Single mode.
L2
Receives all Layer‐2 modes available in V.35 Single mode.
AAC‐LD
Receives all AAC‐LD modes available in V.35 Single mode.
AAC
Receives all AAC modes available in V.35 Single mode.
BIT RATE
This determines the bit rate of the V.35 ports as well as the encoder and decoder. In V.35 Single
mode the following rates are available: 96, 112, 128, 256, 384 kbps. Not all Bit Rates are
supported in all algorithms.
SAMPLE RATE
This determines the sample rate used for the codec operation. Not all sample rates are
supported at all bit rates. The following table summarizes the allowable sample rate and bit
rate combinations supported in Single V.35 mode.