Today I bought my first DAB+ radio in preparation for when broadcasting starts in May. It is a PURE Evoke-2S and it sounds terrific in FM. When digital broadcasting begins I will do a review for this blog.
Tuesday, February 10, 2009
Monday, February 2, 2009
A brief description of DAB+ digital broadcasting from Wikipedia.
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For other digital audio broadcasting systems, see Digital radio.
Countries with DAB, DAB+ or DMB broadcasts[1]
Digital Audio Broadcasting (DAB), also known as Eureka 147, is a digital radio technology for broadcasting radio stations, used in several countries, particularly in the UK and Europe. As of 2006, approximately 1,000 stations worldwide broadcast in the DAB format.[2]
The DAB standard was designed in the 1980s, and receivers have been available in many countries for several years. Proponents claim the standard offers several benefits over existing analogue FM radio, such as more stations in the same broadcast spectrum, and increased resistance to noise, multipath, fading, and co-channel interference. However, listening tests carried out by experts in the field of audio have shown that the audio quality on DAB is lower than on FM in the UK on stationary receivers, due to 98% of stereo stations using a bit rate of 128 kbit/s with the MP2 audio codec, which requires double that amount to achieve perceived CD quality.[3][4][5]
An upgraded version of the system was released in February 2007, which is called DAB+. This is not backward-compatible with DAB, which means that DAB-only receivers will not be able to receive DAB+ broadcasts. DAB+ is approximately twice as efficient as DAB due to the adoption of the AAC+ audio codec, and DAB+ can provide high quality audio with as low as 64kbit/s.[4][6] Reception quality will also be more robust on DAB+ than on DAB due to the addition of Reed-Solomon error correction coding.
Australia, Italy, Malta and Switzerland have started transmitting DAB+ stations. Hungary is due to launch DAB+ stations in 2008 and Germany is planning to launch DAB+ in 2009. The radio industry in the UK is expecting DAB+ stations to launch between 2010 and 2013,[7] and podcast services using the DAB+ format will be launched in the UK in 2009.[8]
Jump to: navigation, search
For other digital audio broadcasting systems, see Digital radio.
Countries with DAB, DAB+ or DMB broadcasts[1]
Digital Audio Broadcasting (DAB), also known as Eureka 147, is a digital radio technology for broadcasting radio stations, used in several countries, particularly in the UK and Europe. As of 2006, approximately 1,000 stations worldwide broadcast in the DAB format.[2]
The DAB standard was designed in the 1980s, and receivers have been available in many countries for several years. Proponents claim the standard offers several benefits over existing analogue FM radio, such as more stations in the same broadcast spectrum, and increased resistance to noise, multipath, fading, and co-channel interference. However, listening tests carried out by experts in the field of audio have shown that the audio quality on DAB is lower than on FM in the UK on stationary receivers, due to 98% of stereo stations using a bit rate of 128 kbit/s with the MP2 audio codec, which requires double that amount to achieve perceived CD quality.[3][4][5]
An upgraded version of the system was released in February 2007, which is called DAB+. This is not backward-compatible with DAB, which means that DAB-only receivers will not be able to receive DAB+ broadcasts. DAB+ is approximately twice as efficient as DAB due to the adoption of the AAC+ audio codec, and DAB+ can provide high quality audio with as low as 64kbit/s.[4][6] Reception quality will also be more robust on DAB+ than on DAB due to the addition of Reed-Solomon error correction coding.
Australia, Italy, Malta and Switzerland have started transmitting DAB+ stations. Hungary is due to launch DAB+ stations in 2008 and Germany is planning to launch DAB+ in 2009. The radio industry in the UK is expecting DAB+ stations to launch between 2010 and 2013,[7] and podcast services using the DAB+ format will be launched in the UK in 2009.[8]
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