Friday, December 30, 2005

DAB Threat


I have discovered IP delivery for audio via WiFi at home.
I am using a Squeezebox from SlimDevices.
This gives a wide choice of IP delivered audio from your PC or Mac via the Slimserver or direct from the internet.So you can play your iTunes library or play Radioio Jazz from Shoutcast with no computer at all.
This makes the poor bit rates of UK radio stations on the web really obvious.
It is really no good streaming windows media at 2ok or 32k,it sounds terrible.
Jazz FM or GWR Classic Golds streams are almost not worth bothering with.
The BBC streams are just acceptable,and you can play all their audio with the excellent Alien BBC plugin for the Slimserver.
What this also shows up is how far behind UK DAB is with too many channels crammed into too little bandwidth ,using an older compression codec ,MP2.
DAB needs either less channels or more bandwidth for the same number of channels,otherwise it is doomed to be 'digital medium wave'.
DRM+ in Band 2 VHF could finally provide quality delivery to home instead of DAB.
Once folks have broadband WiFi at home,it could be death to DAB at home,only car use maybe.
The broadcasters urgently need to use better codecs on the Web,such as AAC+?
Here is a picture I took at Stourhead Landscape Garden.

1 Comments:

Blogger James Cridland said...

You say... This makes the poor bit rates of UK radio stations on the web really obvious. It is really no good streaming windows media at 2ok or 32k,it sounds terrible.

Agreed, which is why at www.virginradio.co.uk/listen you can get Windows Media at 96k, or even Ogg Vorbis at 160k. There are others using these speeds, too - so, please don't tar all UK broadcasters with the same brush.

11:01 pm  

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