Somewhat OT: MythTV / DVB in Israel

[Udi Finkelstein]

On Fri, Jan 13, 2012 at 11:50 AM, Shachar Shemesh <shachar at shemesh.biz>wrote:

>  On 01/12/2012 02:27 PM, Udi Finkelstein wrote:
>
> yielding about 30% higher bitrate for the same bandwidth
>
> Complete and utter nitpicking.
>
If you nitpick, make sure your are correct first...


> Bitrate is the number of bits per second (usually measured in kilo bits
> per second, or kbps, or sometimes mbps). This means that bit rate and
> bandwidth are, for all practical purposes, one and the same.
>

I meant every word I said.
And your assumption that bitrate and bandwidth is the same is definitely
wrong!
Every heard the of the distinctions between baud and bit/s?
Just look at the evolution on modems from the 110bps half duplex to the
53600 full duplex (57600 is cheating because it relies on a digital line,
so its not fail to compare it with earlier standards).

As for DVB-T2, I will not go into the technical details , but feel free to
look at:

http://en.wikipedia.org/wiki/DVB-T2#System_differences_with_DVB-T


>
> What you (probably) meant to say was that the new encoding allows
> transferring the same video quality for 30% less bit rate.
>

Sorry, wrong again...

Unlike earlier DVB-T efforts in the world (e.g. UK's Freeview) that used
MPEg2, The Israeli standard already used H.264 over the DVB-T physical
layer from day one. The new transmissions will keep H.264 but will use the
new DVB-T2 encoding for the HD channels.

Udi
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