visible MPEG decoding error

Hi all,

I'm a student and i have to do a research about diversity reception in
DVB-T.
Now i'm reading an article from this link:
http://www.dibcom.com/Images/Upload/pdf/Publications/Confluent.pdf.
I don't understand the subjective failure point definition (page 4) :
"maximum of one visible MPEG decoding error during 20 seconds".
Please, i would like to know what does this definition means; in
particoular, can i look for "visible MPEG decoding error"  analyzing
the audio/video stream (at the output of the STB) ? Or they can be
detected only with the use of an MPEG-TS analyzer ?

Best regards

On Apr 19, 2:03&#4294967295;pm, Alexis <alexisf...@libero.it> wrote:
> Hi all,
>
> I'm a student and i have to do a research about diversity reception in
> DVB-T.
> Now i'm reading an article from this link:http://www.dibcom.com/Images/Upload/pdf/Publications/Confluent.pdf.
> I don't understand the subjective failure point definition (page 4) :
> "maximum of one visible MPEG decoding error during 20 seconds".
> Please, i would like to know what does this definition means; in
> particoular, can i look for "visible MPEG decoding error" &#4294967295;analyzing
> the audio/video stream (at the output of the STB) ? Or they can be
> detected only with the use of an MPEG-TS analyzer ?
>
> Best regards

this usually means just what it sounds like, a visable error that
shows up on the reconstructed video..  nothing more fancy than that

Mark

> this usually means just what it sounds like, a visable error that
> shows up on the reconstructed video.. �nothing more fancy than that
>
> Mark

thanks.
Moreover, I have read this: "The SFP* corresponds fairly well to a
Packet Error Ratio PER = 10-4 after the RS-decoder at the demodulator
TS-output"
So, i think, for criteria SFP it is also possible define a PER target
(measured by a TS-MPEG analyzer) without looking at the video/audio
output.

*SFP = Single Failure Point