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Criticisms of DAB in the UK
DAB audibly provides worse audio quality than FM in the UK because of the cost-efficient use of very low bitrates. In 2020, most commercial stations use only 32–64 kbps (DAB+ with HE-AAC codec) while those stations maintaining the old DAB standard (MP2) have switched to mono with 64–80 kbps.[24] A bit rate of 256 kbps (MP2) has been judged to provide a high quality stereo broadcast signal. The bit rates used by the radio stations on cable and satellite are usually higher. Many internet radio streams also use low bitrates but with MP3 with better results than MP2. On the other hand, an Ofcom survey, which was undertaken due to many consultation responses citing poor DAB quality, found that 94% of DAB listeners thought DAB was at least as good as FM.[25]
In 2006, Ofcom estimated that even after extra spectrum has been allocated to DAB, around 90 local radio stations will be unable to transmit on DAB, either because there is no space for them on a local DAB multiplex, or because they cannot afford the high transmission costs of DAB that the multiplex operators are charging.[26] Ofcom announced in 2005 that it regarded Digital Radio Mondiale (DRM) as an option for local stations unable to secure carriage or unable to pay the high transmission costs of DAB.[27] The success of the small scale DAB multiplexes may alleviate this issue to some degree.
On 24 January 2009, Ofcom allowed electrical retailers to be granted a licence to rebroadcast DAB signals within their stores to demonstrate DAB radio sets within their stores. The United Kingdom consumer charity, Which? warned that consumers who could not get an adequate DAB signal could be misled by the in-store sets. The Digital Radio Development Bureau replied to the Which? report stating that stores contain a steel structure which produce a Faraday cage effect where DAB signals are blocked out. The DRDB recommended that consumers should check DAB coverage online with their postcode before purchasing a DAB radio to avoid disappointment.[28]
On 24 November 2010, a number of commercial radio operators refused to run an advertisement promoting DAB, one operator stating that it would be "fundamentally immoral and dishonest" until DAB coverage matches that of FM.
10 years agoDAB audibly provides worse audio quality than FM in the UK because of the cost-efficient use of very low bitrates. In 2020, most commercial stations use only 32–64 kbps (DAB+ with HE-AAC codec) while those stations maintaining the old DAB standard (MP2) have switched to mono with 64–80 kbps.[24] A bit rate of 256 kbps (MP2) has been judged to provide a high quality stereo broadcast signal. The bit rates used by the radio stations on cable and satellite are usually higher. Many internet radio streams also use low bitrates but with MP3 with better results than MP2. On the other hand, an Ofcom survey, which was undertaken due to many consultation responses citing poor DAB quality, found that 94% of DAB listeners thought DAB was at least as good as FM.[25]
In 2006, Ofcom estimated that even after extra spectrum has been allocated to DAB, around 90 local radio stations will be unable to transmit on DAB, either because there is no space for them on a local DAB multiplex, or because they cannot afford the high transmission costs of DAB that the multiplex operators are charging.[26] Ofcom announced in 2005 that it regarded Digital Radio Mondiale (DRM) as an option for local stations unable to secure carriage or unable to pay the high transmission costs of DAB.[27] The success of the small scale DAB multiplexes may alleviate this issue to some degree.
On 24 January 2009, Ofcom allowed electrical retailers to be granted a licence to rebroadcast DAB signals within their stores to demonstrate DAB radio sets within their stores. The United Kingdom consumer charity, Which? warned that consumers who could not get an adequate DAB signal could be misled by the in-store sets. The Digital Radio Development Bureau replied to the Which? report stating that stores contain a steel structure which produce a Faraday cage effect where DAB signals are blocked out. The DRDB recommended that consumers should check DAB coverage online with their postcode before purchasing a DAB radio to avoid disappointment.[28]
On 24 November 2010, a number of commercial radio operators refused to run an advertisement promoting DAB, one operator stating that it would be "fundamentally immoral and dishonest" until DAB coverage matches that of FM.
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