Re: [swinog] More Speed with ADSL

2006-01-11 Diskussionsfäden Martin Ebnoether

Xaver Aerni schrieb:

Xari!


The normal Channel are not verry good on ADSL and CC TV... They have for 1
Channel only 1,5 Mbit... On Sat you have 3.5 till 4.5 Mbit...


You mean DVB-S. Well I don't know how Bluewin tries to market 
ther ADSL TV but obviously it's not yet ready to be a replacement 
for an existing TV set



Ok CC has on the Cinemas 1 Mbit more... But... i don't know... When you see a
footballgame... You have sometimes "Pixel" on the Screen. For fast movements on
the Screen is 1.5 Mbit to less. I say allways more then 3.5 Mbit is ok... 4.5
is good... 


Picture quality heavily depends on the bandwidth, the used codec 
and what will is shown in the picture (or movie). The two worst 
things that can happen are fast movements or hard borders (like 
in cartoons or animes). Try encoding a testing table and see how 
good the alternating black and white stripes will come out.


Ehm, it gets a little bit off topic by now. How about discussing 
this at the next Beer Event? (Even though I'm not allowed to 
drink beer because I have to eat medicine (blood dilution) to 
cure my hyperthyreosis)


CU, Venty
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Re: [swinog] More Speed with ADSL

2006-01-11 Diskussionsfäden Xaver Aerni
hi Venty,

The normal Channel are not verry good on ADSL and CC TV... They have for 1
Channel only 1,5 Mbit... On Sat you have 3.5 till 4.5 Mbit...

Ok CC has on the Cinemas 1 Mbit more... But... i don't know... When you see a
footballgame... You have sometimes "Pixel" on the Screen. For fast movements on
the Screen is 1.5 Mbit to less. I say allways more then 3.5 Mbit is ok... 4.5
is good... 

Greetings  Xaver

> Xaver Aerni schrieb:
> 
> Xari!
> 
> >>Cablecom probably will offer greater bandwidths once they have 
> >>switched to digital TV becaus of digital TV is capable of 
> >>offering a multitude of TV programs over a single channel. And 
> >>with DOCSIS 3.0 one can bundle channels for even more bandwidth. 
> >>Needs new infrastructure (modems and uBRs) though.
> > 
> > 
> > I think CC has a big trafffic Problem. They must switch off many of the
analog
> > Channels, when they want have more Traffic. They use some bandwidths for
the
> > digital TV, and for HDTV they use for every Channel the Space of 2 analog
> > Channels... ok... With the compression od 1,5 channels...
> > I think this will be a bigger Problem...
> 
> Exactly. That's why they are urged to push digital TV. Personally 
> I'd love TV without snow (except winter sports or documentations 
> but let's stay on topic) but I will not pay more than for analog 
> TV, that's for sure. I have a Sat receiver and antenna at home, 
> picture quality is way better there of course.
> 
> HDTV, I don't see the improvement of having higher resolution 
> when it's compressed down for no good.
> 
> It's the same like with DAB. It's of no use being able to receive 
> DRS2 digitally, when it's compressed to 112 kbit/s. I would not 
> even go below 160 kbit/s even for pop music.
> 
> By the way: What ever happend to TV over ADSL? =:-)
> 
> CU, Venty
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Re: [swinog] More Speed with ADSL

2006-01-11 Diskussionsfäden Martin Ebnoether

Xaver Aerni schrieb:

Xari!

Cablecom probably will offer greater bandwidths once they have 
switched to digital TV becaus of digital TV is capable of 
offering a multitude of TV programs over a single channel. And 
with DOCSIS 3.0 one can bundle channels for even more bandwidth. 
Needs new infrastructure (modems and uBRs) though.



I think CC has a big trafffic Problem. They must switch off many of the analog
Channels, when they want have more Traffic. They use some bandwidths for the
digital TV, and for HDTV they use for every Channel the Space of 2 analog
Channels... ok... With the compression od 1,5 channels...
I think this will be a bigger Problem...


Exactly. That's why they are urged to push digital TV. Personally 
I'd love TV without snow (except winter sports or documentations 
but let's stay on topic) but I will not pay more than for analog 
TV, that's for sure. I have a Sat receiver and antenna at home, 
picture quality is way better there of course.


HDTV, I don't see the improvement of having higher resolution 
when it's compressed down for no good.


It's the same like with DAB. It's of no use being able to receive 
DRS2 digitally, when it's compressed to 112 kbit/s. I would not 
even go below 160 kbit/s even for pop music.


By the way: What ever happend to TV over ADSL? =:-)

CU, Venty
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Re: [swinog] More Speed with ADSL

2006-01-11 Diskussionsfäden Xaver Aerni
> 
> Cablecom probably will offer greater bandwidths once they have 
> switched to digital TV becaus of digital TV is capable of 
> offering a multitude of TV programs over a single channel. And 
> with DOCSIS 3.0 one can bundle channels for even more bandwidth. 
> Needs new infrastructure (modems and uBRs) though.

I think CC has a big trafffic Problem. They must switch off many of the analog
Channels, when they want have more Traffic. They use some bandwidths for the
digital TV, and for HDTV they use for every Channel the Space of 2 analog
Channels... ok... With the compression od 1,5 channels...
I think this will be a bigger Problem...
Xaver
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Re: [swinog] More Speed with ADSL

2006-01-11 Diskussionsfäden Martin Ebnoether

Gabriel Ambuehl schrieb:

Who, as a Cablecom customer, is obviously hoping that they will follow suit... 

Then again I'd rather keep 2mbit for 75CHF if they'd offer me symmetric 
upstream instead ;)


Yeah well, let's see about the upstream. I doubt this will raise 
in the near future. Outbound traffic is expensive plus DOCSIS 
Upstream takes place in the lower TV Band (VHF). Space is rather 
limited there and most headend stations (uBR) only have one or 
two connectors for upstream traffic (meaning upstream coming from 
the modem, even though it's labelled differently =:-) So 
basically all or even a big part of the customers modem share the 
same upstream channel. This is gonna get very tight, even if you 
use advanced modulations like QAM-256 (We normally use QAM-16 or 
even PSK at very small ISPs).


Cablecom probably will offer greater bandwidths once they have 
switched to digital TV becaus of digital TV is capable of 
offering a multitude of TV programs over a single channel. And 
with DOCSIS 3.0 one can bundle channels for even more bandwidth. 
Needs new infrastructure (modems and uBRs) though.


CU, Venty
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Re: [swinog] More Speed with ADSL

2006-01-11 Diskussionsfäden Gabriel Ambuehl
On Wednesday 11 January 2006 14:47, Daniel Lorch wrote:

> http://www.swisscom.com/GHQ/content/Media/Medienmitteilungen/2006/20060111_
>01_erhoehung_adsl_bandbreiten.htm?lang=de
>
> via: Gabriel Ambuehl

Who, as a Cablecom customer, is obviously hoping that they will follow suit... 

Then again I'd rather keep 2mbit for 75CHF if they'd offer me symmetric 
upstream instead ;)


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Re: [swinog] More Speed with ADSL

2006-01-11 Diskussionsfäden Fredy Kuenzler

Daniel Lorch wrote:
"Private und Firmen profitieren von noch schnelleren 
Datenverbindungen: In den kommenden Monaten erhöht Swisscom Fixnet 
Wholesale die Bandbreiten für ADSL-Anschlüsse je nach Angebot um mehr

 als das Dreifache."

http://www.swisscom.com/GHQ/content/Media/Medienmitteilungen/2006/20060111_01_erhoehung_adsl_bandbreiten.htm?lang=de


They scaled their new product porfolio mainly to keep the gross margin
as it is. I'm not sure whether this is benefical to the BBCS partners.

Some other thoughts:
http://www.blogg.ch/index.php?/archives/266-Swisscom-ergreift-die-Flucht-nach-vorn-ADSL-Upgrade-bis-zum-Limit.html

Regards,
Fredy
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