Friday, 2 May 2025

British Radio

Here in Britain DAB+ is the latest version of digital Radio and only works on radios that support DAB+. 
According to the DAB+ website, the sound quality of DAB+ is better despite requiring a lower data transmission rate, less than 64kb per second. At the time of writing this post, Britain intends to keep both technologies running. 

According to official documentation DAB+ uses the codec He aac V2, part of the MP4 framework. It has a much higher compression compared to the MP2 codec used by plain DAB. 

The drawback of this technology is the radio itself has to do more work. After extracting a data stream, microprocessor in the radio has to decompress the sound data and turn it back into sound waves. 
~ image generated by artificial intelligence (Gemini)