OPTICOM OPERA - V 3.5 User Manual page 47

C H A P T E R 4 : G E T T I N G
F R A M E W O R K
remote system whenever the name in the edit field changes and click to
somewhere outside of that field. Please note that searching for a remote system
may take some time (between few seconds and approximately one minute).
Enter the name of the local system or "localhost" as the network if the calls shall
be issued on the local system. After having established a connection to an
OPERA™ system, the drop down boxes for the interface selection will be
updated. Please note that delay measurements are not possible for
measurements between two systems when using OptiCall™. If delay
measurements between two OPERA systems are required, the OPERA Control
Center must be used.
Note:
A permanent TCP/IP connection between two systems is required
to set up a call between two OPERA Systems.
The edit field Reference
containing the speech sample. Instead of entering the path manually, click on
Browse and search the file by using the explorer. If a valid file is selected, some
information on the encoding of the data below of the edit field will be
observed. In case there is no information displayed, the file does either not
exist, or is of an invalid format. Depending on the view and operating mode
there may be one or two reference files required, one for each side. In the
Telephony Standard and Audio Standard Views the system will automatically
choose the same reference file for both sides. In the Expert View choose
different files, which is useful for measurements under double talk situations.
When choosing two files however, take care that they are more or less equally
long, since the measurement will stop after the shorter file is finished.
Note:
Currently supported file formats are *.wav files containing 8 kHz
sample rate, 8bit G.711 (a-law / µ-law) for telephony interfaces
and all standard sample rates, plain PCM or G.711 for audio
interfaces.
The next edit field Dest. Directory indicates to where the recorded files shall be
written. The entry starts with a path to a directory that must exist on the local
machine, e.g.
c:\temp\test
in Figure 4.12 After the path, a "#" symbol is used to separate the path from the
root file name that will be used to create the final file name, e.g.
Demo
T O K N O W T H E
must contain the full path and the name of the file
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O P E R A ™