PortaNet User Manual
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Problem-solving guide
This chapter is aimed at providing some solutions to common problems when
using Prodys Codecs.
XII.1
Audio problems
Audio problems and some possible solutions:
XII.1.1
No Audio on the outputs
When audio is not present on any output and before proceeding, it is convenient
to check the audio matrix configuration in order to make sure that the audio
sources has been correctly selected.
XII.1.2
The program line is connected but there is no audio on the outputs
In order that audio outputs carry audio, the corresponding decoder must be
synchronized, that means, the decoder has to detect the format of the bit stream
from the audio data being received. This auto-detection is automatic, and this
situation is represented in the screen with the word “FRAMED”.
Thus, when the decoder is not ‘framed’, there is no audio on the outputs.
Some things that can cause the decoder not to be synchronized:
1.
The communication line is not working properly.
2.
The encoder at the other end is not configured in a compatible mode, or it
is not encoding properly.
3.
The equipment may be faulty. The easiest way to test it is to make a ‘loop
call’, by calling from the unit to itself and check if everything works
correctly.
If the decoder is ‘framed’ but there is still no audio on the outputs:
1.
There is no audio present on the inputs of the codec at the other end, or
the audio in the other codec is not well configured.
2.
The codec at the other end is not working properly.
3.
The equipment may be faulty. The easiest way to test it is to make a ‘loop
call’, by calling from the unit to itself and check if everything work fine.
L 1
C O N N E C T E D F R A M E D
L 2 : I D L E
