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This unique device did not have a screen, but did have LEDs behind a cover that changed colour depending on the device status. It is likely to be most available on eBay.— Preceding unsigned comment added by 81.178.106.116 ( talk • contribs) 22: 05:48, 29 September 2005 (UTC)
it sure says something about the intelligence of the usa when someone can do a write-up on satellite radio 3.5 years ago and no one has touched it since.— Preceding unsigned comment added by 70.20.67.235 ( talk • contribs) 14:03, 24 Dec 2005 (UTC)
DAB is one digital radio standard, and IBOC/ISDB/DRM/Satellite are other, different standards - why does this page about DAB talk at length about other standards, particularly IBOC and satellite, and the USA which has chosen not to adopt the DAB standard? Are these issues not covered sufficiently in the 'Digital Radio' entry, and wholly irrelevant to this page?— Preceding unsigned comment added by 218.214.60.207 ( talk • contribs) 08:09, 11 Jan 2006 (UTC)
Yeah, Somebody should fix this... and there should be definetly be clearer difference between "DAB"-standard and Digital audio broadcasting in general.— Preceding unsigned comment added by 130.234.5.137 ( talk • contribs) 10:44, 15 Jan 2006 (UTC)
The section on Single Frequency Networks suggests that broadcasters have to pay particular attention to timing if they use several different transmitters. This must surely depend on how they transmit the data streams to the different transmitting stations. If they use asynchronous digital data transmission between sites, then delays could become problematic, but if they use analogue transmission, then the delays should be more or less insignificant, as the OFDM coding used in DAB should tolerate some variation in timing between different transmitters, and delays based mainly on propagation delays between transmitting stations should be more or less insignificant. If they use digital packet switching for inter station feeds, then store and forward delays, and queuing delays may be very significant, and then there would be a need for some clever techniques to synchronise the different transmitters.
I was going to suggest that the article is wrong, but it may not be. It'd be good to have more information about this. Are there any reputable articles which can be referenced/cited? David Martland ( talk) 22:29, 4 April 2010 (UTC)
The opening section states "As of 2006, approximately 1,000 stations worldwide broadcast in the DAB format".
I would suggest this stat is irrelevant now - although it would be interesting to know. Has anyone got an up to dtae figure? —Preceding unsigned comment added by 86.184.68.249 ( talk) 18:22, 18 September 2010 (UTC)
The section about pirate radio is becoming less relevant as open source implementations of DAB/DAB+ transmitters are becoming available. There is still a need for specialized hardware to get a signal out but I would guess the first (London) DAB-using pirate isn't too far away (in my not so humble opinion).
-- Khoos ( talk) 21:02, 25 March 2012 (UTC)
I am not sure what it is like throughout the rest of the world but here in Australia, the bit rates for DAB+ radio are appalling, toppign 80kbit/s at most. While this article claims that AAC triples the efficiency of MPEG encoding, my experience is that the sound quality is still pretty poor at 64bit/s, even 80kbit/s, with MP3 encoding at 128kbit/s or more delivering superior sound quality.
Therefore is there is no objection I will add a section to this article under the bit on MPEG bit rates to cover AAC bit rates also, and highlight that to achieve sound quality better than FM then 128kbit/s is still required, with few stations offering this. — Preceding unsigned comment added by Supremedalek ( talk • contribs) 02:11, 3 January 2011 (UTC)
I came to this page looking for information about DAB aerials and why they are different from FM / VHF aerials. It seems odd to me to have a lot written about reception, but nothing about what you would use to receive. I understand that aerial length and the orientation of signal modulation is important. I don't understand why a telescopic FM aerial can't simply be used vertically and to the required length. Or maybe it can. From lots of Googling, I believe that a lot of people are put off car DAB by the use of substandard in-car aerials, blaming the DAB transmission rather than the aerial, so clearing up this point in this article could be useful to a lot of people. — Preceding unsigned comment added by 84.93.174.94 ( talk) 16:28, 24 January 2013 (UTC)
Dab has a shorter wavelength than vhf signals between 88-108mhz cutting a dipole would help boost you reception for dab. — Preceding unsigned comment added by 86.15.5.178 ( talk) 00:40, 14 May 2013 (UTC)
Denmark is going to be moving to DAB+ in 2014. All channels are going to be broadcasting in DAB+ by 1-December-2014.
Sources in Danish.
http://www.radioassistant.com/dk/2013/09/digital-radio-danmark-skifter-til-dab-i-2014/ http://www.kulturstyrelsen.dk/fileadmin/user_upload/dokumenter/KS/medier/radio/Digital_radio/Digiradioplan-2013-2019.pdf (this is the long term FM - DAB+ plan for Denmark)
Jonfr ( talk) 09:01, 7 March 2014 (UTC)
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Cheers. — cyberbot II Talk to my owner:Online 08:04, 28 August 2015 (UTC)
DAB hasn't been used in Portugal since the only operator in the country who provided broadcasts on DAB (Rádio e Televisão de Portugal) decided to shutdown their DAB broadcasts due to cost-cutting measures (really, practically no one in Portugal knew that there were DAB broadcasts, has most people receive radio broadcasts through FM). As such, it should be reflected on the map present in this article. Here is a source for this: http://www.dn.pt/inicio/tv/interior.aspx?content_id=1844071&seccao=Televis%C3%A3o JDamanWP ( talk) 18:04, 25 September 2015 (UTC)
The section titled "Above all, less or no fading while on the move, but tough market drive-in" is only marginally legible, due to numerous errors of English usage. Can someone who understands this topic correct it? 50.58.96.2 ( talk) 17:54, 9 October 2015 (UTC)
At least for Poland. According to pl:Digital Audio Broadcasting there are DAB+ stations in Warsaw. Qndel T⁄ C 11:22, 29 March 2012 (UTC)
Mexico has officially approved HD Radio around 2008-2011, it's prominently used by the state owned stations form IMER, and some commercial stations. — Preceding unsigned comment added by 189.249.254.176 ( talk) 19:10, 21 October 2015 (UTC)
The result of the move request was: Move. Cúchullain t/ c 18:04, 4 January 2016 (UTC)
Digital Audio Broadcasting →
Digital audio broadcasting – Please place your rationale for the proposed move here.
Tony
(talk)
08:32, 27 December 2015 (UTC)
Per WP:MOSCAPS ("Wikipedia avoids unnecessary capitalization") and WP:TITLE, this is a generic, common term, not a propriety or commercial term, so the article title should be downcased. In addition, WP:MOSCAPS says that a compound item should not be upcased just because it is abbreviated with caps. Lowercase will match the formatting of related article titles. An Ngram search of books found a slight majority usage for the downcased format, despite the inclusion of many titles in the upcased count. Tony (talk) 08:32, 27 December 2015 (UTC)
The choice of HE-AAC v2 was made in 2006. Now, 10 years later, isn't AAC obsolete now that we have Opus? 84.214.220.135 ( talk) 16:57, 30 August 2016 (UTC)
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This is an archive of past discussions. Do not edit the contents of this page. If you wish to start a new discussion or revive an old one, please do so on the current talk page. |
Archive 1 | Archive 2 |
This unique device did not have a screen, but did have LEDs behind a cover that changed colour depending on the device status. It is likely to be most available on eBay.— Preceding unsigned comment added by 81.178.106.116 ( talk • contribs) 22: 05:48, 29 September 2005 (UTC)
it sure says something about the intelligence of the usa when someone can do a write-up on satellite radio 3.5 years ago and no one has touched it since.— Preceding unsigned comment added by 70.20.67.235 ( talk • contribs) 14:03, 24 Dec 2005 (UTC)
DAB is one digital radio standard, and IBOC/ISDB/DRM/Satellite are other, different standards - why does this page about DAB talk at length about other standards, particularly IBOC and satellite, and the USA which has chosen not to adopt the DAB standard? Are these issues not covered sufficiently in the 'Digital Radio' entry, and wholly irrelevant to this page?— Preceding unsigned comment added by 218.214.60.207 ( talk • contribs) 08:09, 11 Jan 2006 (UTC)
Yeah, Somebody should fix this... and there should be definetly be clearer difference between "DAB"-standard and Digital audio broadcasting in general.— Preceding unsigned comment added by 130.234.5.137 ( talk • contribs) 10:44, 15 Jan 2006 (UTC)
The section on Single Frequency Networks suggests that broadcasters have to pay particular attention to timing if they use several different transmitters. This must surely depend on how they transmit the data streams to the different transmitting stations. If they use asynchronous digital data transmission between sites, then delays could become problematic, but if they use analogue transmission, then the delays should be more or less insignificant, as the OFDM coding used in DAB should tolerate some variation in timing between different transmitters, and delays based mainly on propagation delays between transmitting stations should be more or less insignificant. If they use digital packet switching for inter station feeds, then store and forward delays, and queuing delays may be very significant, and then there would be a need for some clever techniques to synchronise the different transmitters.
I was going to suggest that the article is wrong, but it may not be. It'd be good to have more information about this. Are there any reputable articles which can be referenced/cited? David Martland ( talk) 22:29, 4 April 2010 (UTC)
The opening section states "As of 2006, approximately 1,000 stations worldwide broadcast in the DAB format".
I would suggest this stat is irrelevant now - although it would be interesting to know. Has anyone got an up to dtae figure? —Preceding unsigned comment added by 86.184.68.249 ( talk) 18:22, 18 September 2010 (UTC)
The section about pirate radio is becoming less relevant as open source implementations of DAB/DAB+ transmitters are becoming available. There is still a need for specialized hardware to get a signal out but I would guess the first (London) DAB-using pirate isn't too far away (in my not so humble opinion).
-- Khoos ( talk) 21:02, 25 March 2012 (UTC)
I am not sure what it is like throughout the rest of the world but here in Australia, the bit rates for DAB+ radio are appalling, toppign 80kbit/s at most. While this article claims that AAC triples the efficiency of MPEG encoding, my experience is that the sound quality is still pretty poor at 64bit/s, even 80kbit/s, with MP3 encoding at 128kbit/s or more delivering superior sound quality.
Therefore is there is no objection I will add a section to this article under the bit on MPEG bit rates to cover AAC bit rates also, and highlight that to achieve sound quality better than FM then 128kbit/s is still required, with few stations offering this. — Preceding unsigned comment added by Supremedalek ( talk • contribs) 02:11, 3 January 2011 (UTC)
I came to this page looking for information about DAB aerials and why they are different from FM / VHF aerials. It seems odd to me to have a lot written about reception, but nothing about what you would use to receive. I understand that aerial length and the orientation of signal modulation is important. I don't understand why a telescopic FM aerial can't simply be used vertically and to the required length. Or maybe it can. From lots of Googling, I believe that a lot of people are put off car DAB by the use of substandard in-car aerials, blaming the DAB transmission rather than the aerial, so clearing up this point in this article could be useful to a lot of people. — Preceding unsigned comment added by 84.93.174.94 ( talk) 16:28, 24 January 2013 (UTC)
Dab has a shorter wavelength than vhf signals between 88-108mhz cutting a dipole would help boost you reception for dab. — Preceding unsigned comment added by 86.15.5.178 ( talk) 00:40, 14 May 2013 (UTC)
Denmark is going to be moving to DAB+ in 2014. All channels are going to be broadcasting in DAB+ by 1-December-2014.
Sources in Danish.
http://www.radioassistant.com/dk/2013/09/digital-radio-danmark-skifter-til-dab-i-2014/ http://www.kulturstyrelsen.dk/fileadmin/user_upload/dokumenter/KS/medier/radio/Digital_radio/Digiradioplan-2013-2019.pdf (this is the long term FM - DAB+ plan for Denmark)
Jonfr ( talk) 09:01, 7 March 2014 (UTC)
Hello fellow Wikipedians,
I have just added archive links to one external link on
Digital Audio Broadcasting. Please take a moment to review
my edit. If necessary, add {{
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Cheers. — cyberbot II Talk to my owner:Online 08:04, 28 August 2015 (UTC)
DAB hasn't been used in Portugal since the only operator in the country who provided broadcasts on DAB (Rádio e Televisão de Portugal) decided to shutdown their DAB broadcasts due to cost-cutting measures (really, practically no one in Portugal knew that there were DAB broadcasts, has most people receive radio broadcasts through FM). As such, it should be reflected on the map present in this article. Here is a source for this: http://www.dn.pt/inicio/tv/interior.aspx?content_id=1844071&seccao=Televis%C3%A3o JDamanWP ( talk) 18:04, 25 September 2015 (UTC)
The section titled "Above all, less or no fading while on the move, but tough market drive-in" is only marginally legible, due to numerous errors of English usage. Can someone who understands this topic correct it? 50.58.96.2 ( talk) 17:54, 9 October 2015 (UTC)
At least for Poland. According to pl:Digital Audio Broadcasting there are DAB+ stations in Warsaw. Qndel T⁄ C 11:22, 29 March 2012 (UTC)
Mexico has officially approved HD Radio around 2008-2011, it's prominently used by the state owned stations form IMER, and some commercial stations. — Preceding unsigned comment added by 189.249.254.176 ( talk) 19:10, 21 October 2015 (UTC)
The result of the move request was: Move. Cúchullain t/ c 18:04, 4 January 2016 (UTC)
Digital Audio Broadcasting →
Digital audio broadcasting – Please place your rationale for the proposed move here.
Tony
(talk)
08:32, 27 December 2015 (UTC)
Per WP:MOSCAPS ("Wikipedia avoids unnecessary capitalization") and WP:TITLE, this is a generic, common term, not a propriety or commercial term, so the article title should be downcased. In addition, WP:MOSCAPS says that a compound item should not be upcased just because it is abbreviated with caps. Lowercase will match the formatting of related article titles. An Ngram search of books found a slight majority usage for the downcased format, despite the inclusion of many titles in the upcased count. Tony (talk) 08:32, 27 December 2015 (UTC)
The choice of HE-AAC v2 was made in 2006. Now, 10 years later, isn't AAC obsolete now that we have Opus? 84.214.220.135 ( talk) 16:57, 30 August 2016 (UTC)
Hello fellow Wikipedians,
I have just modified one external link on Digital audio broadcasting. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
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An editor has reviewed this edit and fixed any errors that were found.
Cheers.— InternetArchiveBot ( Report bug) 02:36, 13 December 2016 (UTC)