DekTec DTC-300 StreamXpress User Manual
Page 15
DTC-300-SP – StreamXpress
USER MANUAL
15
NOTE: This menu is only available when playing an MPEG-2 TS.
There are 3 types of errors that can be injected:
Lost Packets
BIT errors
Byte Errors
Lost Packets: When selecting this type of error insertion, StreamXpress will set the
transport_error_indicator field in the TS packet header once every N packets. The frequency of the
error insertion can be changed using the probability window.
Bit Errors: When selecting this type of error insertion, StreamXpress will modify (from 1 to 0 or from
0 to 1) 1 to M bits per modified packet. The frequency of the error insertion can be changed using
the probability window. The bit error distribution is random.
BYTE Errors: When selecting this type of error insertion, StreamXpress will modify 1 to M bytes per
modified packet. The frequency of the error insertion can be changed using the probability window.
The byte error distribution is random.
NOTE: The probability of error insertion can vary by few packets. For exact bit error measurement
use the Test-Signal generator function.
NOTE: When injecting errors, the Selective Error Injection window will remain open until all error
injection options are turned off.
#6 Tools/ Loop and TDT/TOT Adaptation:
StreamXpress offers the capability to loop a recorded transport stream for continuous playback.
An operation encoder is designed to run continuously and when looping a pre-recorded TS there
will be some discontinuity that can affect the receiver and decoder downstream.
StreamXpress offers some looping options that can help minimize the effect of the discontinuity at
the looping point. It allows adapting the Continuity Counter, PCR and DTS/PTS, TDT/TOT after the