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#11
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":Jerry:" wrote in message ... Sorry about that duplicate, I think the server hiccupped... |
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#12
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:Jerry: wrote:
":Jerry:" wrote in message ... Sorry about that duplicate, I think the server hiccupped... No, Degreeless Jezza, you are simply grossly incompetent. -- Steve - www.digitalradiotech.co.uk - Digital Radio News & Info The adoption of DAB was the most incompetent technical decision ever made in the history of UK broadcasting: http://www.digitalradiotech.co.uk/da...ion_of_dab.htm |
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#13
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"DAB sounds worse than FM" [email protected] wrote in message ... grossly incompetent. Being truthful about yourself again 'Stevie-boy'? |
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#14
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DAB sounds worse than FM wrote:
wrote: As I believe I've commented befo it's not ATRAC3, but the RealAudio G2 codec. This was introduced with RealAudio 6. Atrac3 didn't come about until RealAudio 8. That's even worse then. There are also Windows Media Audio streams, although the only one I can get to play is rather tinny and mono. Yep, the ones I've heard sound worse as well, and only R1-4 are using 64 kbps, with the others mostly using 40 kbps and the World Service using just 20 kbps on both WMA and Real. I don't know how much it costs to stream the World Service, although I'd imagine a huge audience base (a weekly reach of 173 million for its programes, I understand, over various platforms) on a global scale. Bandwidth for that probably isn't cheap, so using a very low bitrate probably mitigates the cost. As an occasional domestic listener, I find the quality of WS on Freeview/DAB to be acceptable (my biggest bug-bear being such aggressive compression; I'm on digital in London, not on SW in Lagos). Not good, obviously, but acceptable. Certainly better than 648kHz, but I concede that should not even be a point to make! Any comments on my assertion that the BBC's audio engineering of the streams prior to them being encoded to the Real codec is grossly incompetent? I've been told that they're received off-air via digital satellite, then transcoded to an even lower bit rate. "Butchery" is the word I think I'm looking for. The joys of out-sourcing. Siemens receive the stations from digital satellite in Maidenhead and transcode them there. I understand plans are afoot to have the BBC encode the radio streams, direct from network distribution, at Broadcasting House. I was also told by someone that the streams used to be at 64 kbps and they were then reduced to 32 kbps, which is the bit rate they stayed at until 2007. Do you know which year it was they were reduced from 64 kbps? The streams went from a top rate of 64k to a top rate of 44k when Listen Again came about. I wasn't aware of a top limit of 32k at any point, but I seldom listen online. |
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#16
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#17
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On Thu, 21 Feb 2008 16:44:13 GMT, "DAB sounds worse than FM"
[email protected] wrote: GCap, the UK's largest commercial radio group, provides 128 kbps WMA Internet streams for virtually all of the stations it owns, and these are at far higher quality than the stations are at on DAB. I'm not sure that GCap are shining examples of a commitment to quality, really. The BBC on the other hand is providing 64 kbps ATRAC3 streams, at very poor audio quality, and towards the end of 2006 they were using just 32 kbps ATRAC3 for the streams. Last time I looked the BBC were providing RealMedia streams using 'Real' codecs. Where does this ATRAC3 stuff come from? -- |
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#18
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On Fri, 22 Feb 2008 01:25:41 GMT, "DAB sounds worse than FM"
[email protected] wrote: I wrote in an article in September 2006 on my website that R1, R2 and R3 were 32 kbps, so I will have checked that that was the bit rate they were using prior to writing the article, and from memory I think they were using 32 kbps for some time before that as well. I remember that ISTR that the streaming adjusts to the speed of your internet connection... So if your kit is not up to 64kbps streaming then it'll step down to 56, 52, 48, 44, 40, 36, 32, 24, etc... -- |
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#19
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Zero Tolerance wrote:
On Fri, 22 Feb 2008 01:25:41 GMT, "DAB sounds worse than FM" [email protected] wrote: I wrote in an article in September 2006 on my website that R1, R2 and R3 were 32 kbps, so I will have checked that that was the bit rate they were using prior to writing the article, and from memory I think they were using 32 kbps for some time before that as well. I remember that ISTR that the streaming adjusts to the speed of your internet connection... So if your kit is not up to 64kbps streaming then it'll step down to 56, 52, 48, 44, 40, 36, 32, 24, etc... I was on broadband at the time, so my connection could easily handle the bit rates that the BBC provides for its Internet streams. -- Steve - www.digitalradiotech.co.uk - Digital Radio News & Info The adoption of DAB was the most incompetent technical decision ever made in the history of UK broadcasting: http://www.digitalradiotech.co.uk/da...ion_of_dab.htm |
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#20
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Zero Tolerance wrote:
On Thu, 21 Feb 2008 16:44:13 GMT, "DAB sounds worse than FM" [email protected] wrote: GCap, the UK's largest commercial radio group, provides 128 kbps WMA Internet streams for virtually all of the stations it owns, and these are at far higher quality than the stations are at on DAB. I'm not sure that GCap are shining examples of a commitment to quality, really. They've been providing quality that outclasses the quality of the BBC's Internet radio streams for about a year now, so what does that say about the BBC? The BBC on the other hand is providing 64 kbps ATRAC3 streams, at very poor audio quality, and towards the end of 2006 they were using just 32 kbps ATRAC3 for the streams. Last time I looked the BBC were providing RealMedia streams using 'Real' codecs. Where does this ATRAC3 stuff come from? I thought they'd be using ATRAC3, which is a codec that's available in RealAudio 8. Real supports loads of different codecs, not just ones that it designs itself. Anyway, someone else has already said that the BBC is using the Real G2 audio codec for its streams, which is even worse than if they'd have been using ATRAC3! -- Steve - www.digitalradiotech.co.uk - Digital Radio News & Info The adoption of DAB was the most incompetent technical decision ever made in the history of UK broadcasting: http://www.digitalradiotech.co.uk/da...ion_of_dab.htm |
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