USER’S MANUAL
Section 5: GUIDED TOUR of the MENUS 95
w
IMPORTANT TIP!
When referring to Transmit modes we use the Term "Mono 64" to refer to a mono signal
using a single B channel. Therefore, the audio stream may be at 56 or 64kbps since the call
could be placed at either rate.
Similarly, we use the term "Mono 128" to refer to a mono signal using the bandwidth from
both B channels. Therefore, the audio stream would be at either 112 or 128kbps.
c
COMPATIBILITY TIP!
The AAC and AAC-LD standards are new, and are not supported by older codecs. When
communicating with older equipment, you must make some other choice.
The G.722 transmit mode is the most widely supported standard. The majority of codecs
support this mode. Since it has the lowest delay, it is frequently used for return feeds and IFB.
Receive
This
instructs
your
Zephyr
Xstream
to
decode
a
particular
mode
being
transmitted
from
the
far
‐
end
codec.
The
easiest
option
here
is
to
set
Receive
to
the
“
Auto
”
setting.
This
mode
will
attempt
to
determine
the
mode
being
sent
from
the
far
end
and
internally
set
the
Receive
mode
to
match.
As
the
auto
mode
takes
several
seconds
to
determine
the
correct
mode,
generally,
we
recommend
that
you
use
a
specific
setting
for
Receive
.
In
this
case,
your
receive
mode
must
be
set
to
decode
the
stream
being
sent
from
the
far
end.
You
will
need
to
know
the
Transmit
(“Xmt”
or
“Encoder”)
mode
of
the
far
end
to
set
this
correctly.
For
a
detailed
explanation
of
the
options
for
this
menu
item,
see
Section
6
(Audio
Coding
Reference)
and
Section
11
(Detailed
Menu
Reference).
w
IMPORTANT TIP!
When referring to Receive modes we use the Term " 64" to refer to any incoming bit stream
using only a single B channel. The actual audio stream may be at 56 or 64kbps since the call
could be placed at either rate. Note that in nearly all cases a 56 or 64kbps signal will be
mono.
Similarly, we use the Term "128" to refer to any signal using the bandwidth from both B
channels. Therefore, the audio stream would be at either 112 or 128kbps.
The only exception is the G.722 and L3 Dual/Mono modes. These modes can receive one or
two L3 "Mono 64" data streams. When one of these modes is used, you may have 2 sites
connected simultaneously and independently to your Xstream.
Summary of Contents for Zephyr Xstream
Page 2: ......
Page 26: ...USER S MANUAL Section 1 QUICK RESULTS 14...
Page 30: ...USER S MANUAL Section 2 INTRODUCTION Getting to Know the Zephyr Xstream 18...
Page 70: ...USER S MANUAL Section 3 GUIDED TOUR of the HARDWARE 58...
Page 144: ...USER S MANUAL Section 6 AUDIO CODING REFERENCE 132...
Page 164: ...USER S MANUAL Section 8 LIVEWIRETM IP Audio 152...
Page 310: ...USER S MANUAL Appendix 1 Codec Interoperability Information 298...
Page 320: ...USER S MANUAL Appendix 3 ISDN Cause Phrases Values 308...
Page 324: ...USER S MANUAL Appendix 4 Known Working SPID Formats by Telco 312...
Page 356: ...USER S MANUAL Appendix 9 Modular Cable Guide 344...
