Audio sync problem on ABC News 24 (HD)

[Phil Allison]

"Franc Zabkar = Retarded Wog Pig "

"What is the difference bewteen a Digital and a RF TV channel?"
http://vk3khb.gak.net.au/atv/dtv-chnls.html

** WTF is this garbage ???

Some Pile of Shit from a FUCKING radio ham !!!!!!!!!!!!!!

How dare such crap ever be quoted as FACT
----------------------------------------------------

In the old system one TV channel equated to one "Radio Frequency" RF.

** ROTFLMAO !!

One analogue TV channel is ** SEVEN ** fucking MHz wide !!!!!!!!!!!!!!!

Radio hams are utter MORONS !!

In the new system many TV channels share the one Radio Frequency. As
many Digital TV channels can effectively hide inside one RF TV channel
some additional addressing must be used. These Digital TV channels are
allocated as "Logical Channel Numbers" or "Digital Streams".

** The names are pure marketing drivel.

Logical Channel Number 2 (RF Channel #12) is assigned to the ABC. In
Melbourne the single frequency is 226.5 Mhz.

** Channel 12 ( analogue) is like the others and occupies SEVEN MHz of
bandwidth.

From 223 MHz all the way to 230 MHz.

( 226.5 MHz is simply the centre frequency of the band )

The one bit stream incorporates all the following channels:

** But is NOT ** transmitted ** as single data stream.

Literally THOUSANDS of carrier frequencies are involved, each individually
amplitude and phase modulated.

The resulting cacophonous mess has a spectrum just like NOISE !!!

It is a massively parallel **ANALOGUE ** representation of multiple digital
data streams.

Australia uses: DTV-T, QAM64 modulation and MPEG-2 compression.

http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

It is MONSTROUSLY fucking complicated.

You stupid WOG pig.



..... Phil

 

[Sylvia Else]

On 15/11/2012 9:59 PM, Phil Allison wrote:

"Franc Zabkar = Retarded Wog Pig"


"What is the difference bewteen a Digital and a RF TV channel?"
http://vk3khb.gak.net.au/atv/dtv-chnls.html


** WTF is this garbage ???

Some Pile of Shit from a FUCKING radio ham !!!!!!!!!!!!!!

How dare such crap ever be quoted as FACT
----------------------------------------------------


In the old system one TV channel equated to one "Radio Frequency" RF.


** ROTFLMAO !!

One analogue TV channel is ** SEVEN ** fucking MHz wide !!!!!!!!!!!!!!!

Radio hams are utter MORONS !!


In the new system many TV channels share the one Radio Frequency. As
many Digital TV channels can effectively hide inside one RF TV channel
some additional addressing must be used. These Digital TV channels are
allocated as "Logical Channel Numbers" or "Digital Streams".


** The names are pure marketing drivel.


Logical Channel Number 2 (RF Channel #12) is assigned to the ABC. In
Melbourne the single frequency is 226.5 Mhz.


** Channel 12 ( analogue) is like the others and occupies SEVEN MHz of
bandwidth.

From 223 MHz all the way to 230 MHz.

( 226.5 MHz is simply the centre frequency of the band )


The one bit stream incorporates all the following channels:


** But is NOT ** transmitted ** as single data stream.

Literally THOUSANDS of carrier frequencies are involved, each individually
amplitude and phase modulated.

The resulting cacophonous mess has a spectrum just like NOISE !!!

It is a massively parallel **ANALOGUE ** representation of multiple digital
data streams.

Australia uses: DTV-T, QAM64 modulation and MPEG-2 compression.

http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position. See the diagram on that page, in
larger form

http://en.wikipedia.org/wiki/Filevbt_tx_scheme.svg

It makes it abundantly clear that all the subchannels are muxed together
before being handed, as a single stream, to the encoder. There is the
option of having a splitter, and thereby using hierachical transmission,
but none of the Sydney channels indicate, in their Network Information
Tables, that they're doing that.

So the encoder takes a single stream, and encodes it.

At the receiver, the signal is passed through a decoder, which also
yields a single stream.

You can argue 'til you're blue in the face about what exactly a bit
stream is, and at what point in the entire process one should look to
determine whether one has one, but you won't avoid the underlying fact
that, given the single output stream, receiving an HD subchannel is no
more, nor less, difficult than receiving an SD subchannel.

Sylvia

 

[Phil Allison]

"Stupider than Anyone Else Alive "

"Franc Zabkar = Retarded Wog Pig"


** But is NOT ** transmitted ** as single data stream.

Literally THOUSANDS of carrier frequencies are involved, each
individually
amplitude and phase modulated.

The resulting cacophonous mess has a spectrum just like NOISE !!!

It is a massively parallel **ANALOGUE ** representation of multiple
digital
data streams.

Australia uses: DTV-T, QAM64 modulation and MPEG-2 compression.

http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position.

** The link has nothing to do with my "position" - whatever you imagine
that is.

It simply contains the same facts I posted to the retarded Franc wog.



.... Phil

 

[Sylvia Else]

On 16/11/2012 12:19 AM, Phil Allison wrote:

"Stupider than Anyone Else Alive"

"Franc Zabkar = Retarded Wog Pig"


** But is NOT ** transmitted ** as single data stream.

Literally THOUSANDS of carrier frequencies are involved, each
individually
amplitude and phase modulated.

The resulting cacophonous mess has a spectrum just like NOISE !!!

It is a massively parallel **ANALOGUE ** representation of multiple
digital
data streams.

Australia uses: DTV-T, QAM64 modulation and MPEG-2 compression.

http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position.


** The link has nothing to do with my "position" - whatever you imagine
that is.

It simply contains the same facts I posted to the retarded Franc wog.

Having lost all context and relevance.

Frank is having a problem with audio sync. The possible causes have to
be understood in terms of how DVB-T works. It has been observed that the
problem occurs only on ABC24 HD, and not on the other ABC subchannels.
Further it has been observed that once correct synchronization is
achieved, if it ever is, it is retained thereafter.

How do your claimed facts assist?

Sylvia.

 

[Phil Allison]

"Stupider than Anyone Else Alive"

"Franc Zabkar = Retarded Wog Pig"


** But is NOT ** transmitted ** as single data stream.

Literally THOUSANDS of carrier frequencies are involved, each
individually amplitude and phase modulated.

The resulting cacophonous mess has a spectrum just like NOISE !!!

It is a massively parallel **ANALOGUE ** representation of multiple
digital data streams.

Australia uses: DTV-T, QAM64 modulation and MPEG-2 compression.

http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position.


** The link has nothing to do with my "position" - whatever you imagine
that is.

It simply contains the same facts I posted to the retarded Franc wog.

Having lost all context and relevance.

** That idiot mistake is your only forte - bitch face.

Every word I posted is highly relevant to the words quoted above.

Frank is having a problem with audio sync. The possible causes have to be
understood in terms of how DVB-T works.

** So both your and his half baked and plain wrong ideas are worse than
fucking useless.

It has been observed that the problem occurs only on ABC24 HD, and not on
the other ABC subchannels.

** Failure to synch audio and video quickly after a channel change is
symptomatic of poor signal quality - this is simply an observed fact. Bad
fucking luck if YOU have not come across it.

If the HD signal is the only one affected, it is likely due to different and
far more complex processing going on than for a SD signal during the picture
acquisition period. You do know what that is ?

Any attempt at remote diagnosis is highly dependant on the amount and
quality of info supplied - in this case we have SFA and all of it highly
dubious. Making guesses based on feelings and hunches does not help,
experimentation is what is required.

Franc should take the LG set to a neighbours house (one who has no such
problem) and try it on their antenna signal.

He never will, cos the man is an absolute fucking idiot.


.... Phil

 

[Sylvia Else]

On 16/11/2012 12:00 PM, Phil Allison wrote:

"Stupider than Anyone Else Alive"

"Franc Zabkar = Retarded Wog Pig"


** But is NOT ** transmitted ** as single data stream.

Literally THOUSANDS of carrier frequencies are involved, each
individually amplitude and phase modulated.

The resulting cacophonous mess has a spectrum just like NOISE !!!

It is a massively parallel **ANALOGUE ** representation of multiple
digital data streams.

Australia uses: DTV-T, QAM64 modulation and MPEG-2 compression.

http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position.


** The link has nothing to do with my "position" - whatever you imagine
that is.

It simply contains the same facts I posted to the retarded Franc wog.

Having lost all context and relevance.


** That idiot mistake is your only forte - bitch face.

Every word I posted is highly relevant to the words quoted above.


Frank is having a problem with audio sync. The possible causes have to be
understood in terms of how DVB-T works.


** So both your and his half baked and plain wrong ideas are worse than
fucking useless.


It has been observed that the problem occurs only on ABC24 HD, and not on
the other ABC subchannels.


** Failure to synch audio and video quickly after a channel change is
symptomatic of poor signal quality - this is simply an observed fact. Bad
fucking luck if YOU have not come across it.

If the HD signal is the only one affected, it is likely due to different and
far more complex processing going on than for a SD signal during the picture
acquisition period. You do know what that is ?

There you go again suggesting that there is a separate HD signal. In the
absence of hierachical transmission, and as I said, it appears that
technique is not being used, there is no sense in which it can be said
that there is a separate HD signal. What comes out of the decoder is an
MPEG-TS transport stream, which is a multiplex of the various audio and
video streams provided by the broadcaster.

Displaying a program. whether HD or not, just involves picking out the
required data from the transport stream and ignoring the rest.

There is no single thing that can be reasonably described as "the
picture acquisition period". Rather, there are a number of discrete
steps that have to be taken before it is possible to display the first
frame on the screen.

Any attempt at remote diagnosis is highly dependant on the amount and
quality of info supplied - in this case we have SFA and all of it highly
dubious. Making guesses based on feelings and hunches does not help,
experimentation is what is required.

Franc should take the LG set to a neighbours house (one who has no such
problem) and try it on their antenna signal.

It's worth trying, but I predict that it will change nothing.

Sylvia.

 

[Phil Allison]

"Stupider than Anyone Else Alive"

** Failure to synch audio and video quickly after a channel change is
symptomatic of poor signal quality - this is simply an observed fact.
Bad
fucking luck if YOU have not come across it.

If the HD signal is the only one affected, it is likely due to different
and
far more complex processing going on than for a SD signal during the
picture
acquisition period. You do know what that is ?

There you go again suggesting that there is a separate HD signal.

** There is a HD signal that needs to be procured and processed.

You are just dribbling at the mouth now.

Displaying a program. whether HD or not, just involves picking out the
required data from the transport stream ...

** Then processing it differently to an SD signal.

Dribble, dribble, dribble....

There is no single thing that can be reasonably described as "the picture
acquisition period".

** The word "period" refers to time or in this case a time delay.

You are very seriously confused, as bloody usual.

Any attempt at remote diagnosis is highly dependant on the amount and
quality of info supplied - in this case we have SFA and all of it
highly
dubious. Making guesses based on feelings and hunches does not help,
experimentation is what is required.

Franc should take the LG set to a neighbours house (one who has no such
problem) and try it on their antenna signal.

It's worth trying, but I predict that it will change nothing.

** It would likely settle the matter.

That changes things, you tenth witted fucking troll.



.... Phil

 

[Sylvia Else]

On 16/11/2012 1:28 PM, Phil Allison wrote:

"Stupider than Anyone Else Alive"

** Failure to synch audio and video quickly after a channel change is
symptomatic of poor signal quality - this is simply an observed fact.
Bad
fucking luck if YOU have not come across it.

If the HD signal is the only one affected, it is likely due to different
and
far more complex processing going on than for a SD signal during the
picture
acquisition period. You do know what that is ?

There you go again suggesting that there is a separate HD signal.


** There is a HD signal that needs to be procured and processed.

It's just a data stream. It's not fundamentally different from an SD
stream - there's just more of it.

** The word "period" refers to time or in this case a time delay.

OK, so you're just talking about the time the tuner needs to lock onto
the signal, then figure out where the packets start, then for the MPEG
decoder to find a key frame, decode same, and display it. So nothing
special for HD.

Sylvia.

 

[Jizz]

On 16/11/2012 10:28 AM, Phil Allison wrote:

"Stupider than Anyone Else Alive"

** Failure to synch audio and video quickly after a channel change is
symptomatic of poor signal quality - this is simply an observed fact.
Bad
fucking luck if YOU have not come across it.

If the HD signal is the only one affected, it is likely due to different
and
far more complex processing going on than for a SD signal during the
picture
acquisition period. You do know what that is ?

There you go again suggesting that there is a separate HD signal.


** There is a HD signal that needs to be procured and processed.

You are just dribbling at the mouth now.


Displaying a program. whether HD or not, just involves picking out the
required data from the transport stream ...

** Then processing it differently to an SD signal.

Dribble, dribble, dribble....


There is no single thing that can be reasonably described as "the picture
acquisition period".

** The word "period" refers to time or in this case a time delay.

You are very seriously confused, as bloody usual.


Any attempt at remote diagnosis is highly dependant on the amount and
quality of info supplied - in this case we have SFA and all of it
highly
dubious. Making guesses based on feelings and hunches does not help,
experimentation is what is required.

Franc should take the LG set to a neighbours house (one who has no such
problem) and try it on their antenna signal.

It's worth trying, but I predict that it will change nothing.


** It would likely settle the matter.

That changes things, you tenth witted fucking troll.



... Phil

Looks like you're screwed Phil - and by a woman for a change!

 

[Phil Allison]

"Stupider than Anyone Else Alive"

** Failure to synch audio and video quickly after a channel change is
symptomatic of poor signal quality - this is simply an observed fact.
Bad fucking luck if YOU have not come across it.

If the HD signal is the only one affected, it is likely due to
different
and far more complex processing going on than for a SD signal during
the
picture acquisition period. You do know what that is ?

There you go again suggesting that there is a separate HD signal.


** There is a HD signal that needs to be procured and processed.


It's just a data stream. It's not fundamentally different from an SD
stream - there's just more of it.

** A moment ago Sylvia said it simply did not exist !!

What a fucking, retarded autistic freakoid !!!!!!!!!!!

** The word "period" refers to time or in this case a time delay.

OK, so you're just talking about the time the tuner needs to lock onto the
signal, then figure out where the packets start, then for the MPEG decoder
to find a key frame, decode same, and display it. So nothing special for
HD.

** Totally false logic.

There is obviously special, dedicated process for HD pics - that makes it
possible for it to be MORE susceptible to bit errors than SD is, at least in
particular implementations.

DTV receivers are eliminating and hiding data errors all the time, as there
is only very limited redundancy in the signal.

Also, because DTV uses a massively parallel system of data transmission (
8000 odd carriers ) it is highly prone to impulse interference - each
impulse affecting all 8000 carriers at once. A single light switch being
operated nearby can easily cause the pic to freeze and then when it recovers
synch to be lost.

DTV transmissions are NOT hardy - they are very fragile !!

As a result ALL expert advice is to use high mounted, high gain antennas
plus quad shielded, low loss co-ax to eliminate locally generated
interference.

Franc wrote this:
-------------------

" My signal is boosted by a masthead amplifier. Analogue reception was OK
when boosted, but usually very poor otherwise."

That tells me he has a problem both with his antenna and his cabling. From
past events, I know Franc's home address and since he is only 30kms from the
transmission towers and with a line of sight, I reckon he should not be
having any such problem.

But there is ZERO chance of Franc ever revealing WTF is really up.

Cos he is an utter IDIOT.



..... Phil

 

[Jasen Betts]

On 2012-11-15, Sylvia Else <sylvia@not.at.this.address> wrote:

Australia uses: DTV-T, QAM64 modulation and MPEG-2 compression.

http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position. See the diagram on that page, in
larger form

http://en.wikipedia.org/wiki/Filevbt_tx_scheme.svg

It makes it abundantly clear that all the subchannels are muxed together
before being handed, as a single stream, to the encoder. There is the
option of having a splitter, and thereby using hierachical transmission,
but none of the Sydney channels indicate, in their Network Information
Tables, that they're doing that.

Read the text under it in the article that image is from.
http://en.wikipedia.org/wiki/DVB-T


--
⚂⚃ 100% natural

--- news://freenews.netfront.net/ - complaints: news@netfront.net ---

 

[Sylvia Else]

On 17/11/2012 11:10 AM, Jasen Betts wrote:

On 2012-11-15, Sylvia Else <sylvia@not.at.this.address> wrote:

Australia uses: DTV-T, QAM64 modulation and MPEG-2 compression.

http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position. See the diagram on that page, in
larger form

http://en.wikipedia.org/wiki/Filevbt_tx_scheme.svg

It makes it abundantly clear that all the subchannels are muxed together
before being handed, as a single stream, to the encoder. There is the
option of having a splitter, and thereby using hierachical transmission,
but none of the Sydney channels indicate, in their Network Information
Tables, that they're doing that.

Read the text under it in the article that image is from.
http://en.wikipedia.org/wiki/DVB-T

What in particular?

Sylvia.

 

[Phil Allison]

"Stupider Than Anyone Else "

Jasen Betts wrote:


http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position. See the diagram on that page, in
larger form

http://en.wikipedia.org/wiki/Filevbt_tx_scheme.svg

It makes it abundantly clear that all the subchannels are muxed together
before being handed, as a single stream, to the encoder. There is the
option of having a splitter, and thereby using hierachical transmission,
but none of the Sydney channels indicate, in their Network Information
Tables, that they're doing that.

Read the text under it in the article that image is from.
http://en.wikipedia.org/wiki/DVB-T


What in particular?

** Well, you can lead a cow to water - but you cannot make her think .....

Moooooooooooo ............



..... Phil

 

[Jasen Betts]

On 2012-11-17, Sylvia Else <sylvia@not.at.this.address> wrote:

On 17/11/2012 11:10 AM, Jasen Betts wrote:
On 2012-11-15, Sylvia Else <sylvia@not.at.this.address> wrote:

Australia uses: DTV-T, QAM64 modulation and MPEG-2 compression.

http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position. See the diagram on that page, in
larger form

http://en.wikipedia.org/wiki/Filevbt_tx_scheme.svg

It makes it abundantly clear that all the subchannels are muxed together
before being handed, as a single stream, to the encoder. There is the
option of having a splitter, and thereby using hierachical transmission,
but none of the Sydney channels indicate, in their Network Information
Tables, that they're doing that.

Read the text under it in the article that image is from.
http://en.wikipedia.org/wiki/DVB-T

What in particular?

"two different MPEG-TSs can be transmitted at the same time, using a
technique called Hierarchical Transmission"...

The diagram does not apper to show that.

--
⚂⚃ 100% natural

--- news://freenews.netfront.net/ - complaints: news@netfront.net ---

 

[Sylvia Else]

On 18/11/2012 8:54 AM, Jasen Betts wrote:

On 2012-11-17, Sylvia Else <sylvia@not.at.this.address> wrote:
On 17/11/2012 11:10 AM, Jasen Betts wrote:
On 2012-11-15, Sylvia Else <sylvia@not.at.this.address> wrote:

Australia uses: DTV-T, QAM64 modulation and MPEG-2 compression.

http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position. See the diagram on that page, in
larger form

http://en.wikipedia.org/wiki/Filevbt_tx_scheme.svg

It makes it abundantly clear that all the subchannels are muxed together
before being handed, as a single stream, to the encoder. There is the
option of having a splitter, and thereby using hierachical transmission,
but none of the Sydney channels indicate, in their Network Information
Tables, that they're doing that.

Read the text under it in the article that image is from.
http://en.wikipedia.org/wiki/DVB-T

What in particular?

"two different MPEG-TSs can be transmitted at the same time, using a
technique called Hierarchical Transmission"...

The diagram does not apper to show that.

That's under the heading "Splitter", which is indeed shown on the
diagram. The dotted outline appears to be intended to represent its
optional nature.

As I've said, it appears that is is not being used, at least in Sydney
broadcasts.

Sylvia.

 

[Sylvia Else]

On 17/11/2012 10:19 PM, Phil Allison wrote:

"Stupider Than Anyone Else"

Jasen Betts wrote:


http://en.wikipedia.org/wiki/DVB-T#Asia_.26_Australia

Yet that doesn't support your position. See the diagram on that page, in
larger form

http://en.wikipedia.org/wiki/Filevbt_tx_scheme.svg

It makes it abundantly clear that all the subchannels are muxed together
before being handed, as a single stream, to the encoder. There is the
option of having a splitter, and thereby using hierachical transmission,
but none of the Sydney channels indicate, in their Network Information
Tables, that they're doing that.

Read the text under it in the article that image is from.
http://en.wikipedia.org/wiki/DVB-T


What in particular?


** Well, you can lead a cow to water - but you cannot make her think .....

Fairly typical (on second thoughts, strike "fairly") Phil response that
conveys nothing useful.

Sylvia.