[afnog] DSTV HD Model 45 Decoder not displaying DMX text on what is playing

[Dr Paulos Nyirenda]

While online audio streaming is growing to be a viable option and my undergrad duaghter 
packs our home DSL connection with it day and night, what we are missing even at these 
streaming  data rates is not just some audio quality but content in terms of a good quality text 
display for what is playing and some video as is the case on DMX as I have already 
highlighted.

I know that FM stations have a section of the radio spectrum which they can use for text but 
the feasible data rates are very limited and corresponding displays can only drive seven 
segment quality of video, at best. I spent quite a bit of time on this in graduate level 
communications theory on modulation formats, I know that you cannot drive data for a high 
quality display and transmit good quality sound in one frequency band allocated to an FM 
station, unless things have changed drastically even for streaming.

On the other hand, choice is coming for digital TV such as terestrial digital TV based on ITU 
digital TV broadcast migration that is now a requirement for every country. In Malawi this is 
still new and still big news as the Malawi Digiatl Broadcast Network Limited has recently 
launched its network as a signal distributor, see: http://www.malawidigital.mw/ and am heavily 
involved in this in Malawi - and - I know that this is happening in many other countries. 
Whether these will rise to run services such as DMX of HD quality as is currently available on 
DSTV is still on the far horrizon, it could happen. 

So, we do still need to chase things like Multichoice if they provide bad quality services such 
as on DSTV and DMX, which we pay for, while we await these new services and networks to 
come and come up to scratch.

Regards,

Paulos
======================
Dr Paulos B Nyirenda
NIC.MW & .mw ccTLD
http://www.registrar.mw


On 16 Sep 2015 at 12:01, Mark Tinka <mark.tinka at seacom.mu> wrote:

> On 16/Sep/15 11:42, Dr Paulos Nyirenda wrote:
> 
> > True, and especially unrealistic if you are not sitting directly on or connected directly to a fast 
> > connection like directly on or direct to Seacom. Direct satellite to your home in our Africa 
> > region still makes more networking sense for HD level video and audio services like those on 
> > DMX via DSTV and Multichoice
> 
> For video, yes, you need a good link, especially if you're streaming
> reasonably compressed HD content.
> 
> But for audio (particularly radio streaming), 32Kbs, 64Kbps and 128Kbps
> are typical transfer rates on the Internet.
> 
> The average radio station, and all its infrastructure + environmental
> conditions, will hover between 64Kbps - 320Kbps FM quality (mostly on
> the lower end of the spectrum) as seen from an MP3 quality looking
> glass, if you may. So quality-wise, you're neither gaining nor losing much.
> 
> >
> > So this badly unresolved long outstading issue on the Multichoice DSTV satellite TV network 
> > is truly regrettable and very very frustrating.
> 
> If there choice is not exercised, this is what happens.
> 
> Mark.
> 
> 
> 
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