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

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

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