![]() ![]() Compression can also be used to reduce audio-coding delays and minimise latency issues. A Bluetooth codec is a software format that compresses and then encodes music so that it can be efficiently transmitted wirelessly between devices before being decoded by hardware that supports that same codec.Ĭompression reduces the file size lossily (meaning it loses information as it does so), as the less information that is transmitted, the smaller the file size can be. It was originally just a placeholder until the creators could think of a better name, but that never happened. As the story goes, during an early meeting between Intel, Ericsson and Nokia about Bluetooth's inception, Jim Kardach from Intel suggested Bluetooth, saying “King Harald Bluetooth…was famous for uniting Scandinavia just as we intended to unite the PC and cellular industries with a short-range wireless link.” It's actually named after the 10th-century Danish king Harald Bluetooth, who carried the nickname on account of his off-coloured grey/blue tooth. If you have ever wondered what Bluetooth is named after, the answer isn't something you would correctly guess and scribble down in a pub quiz. These two communicate with each other over Bluetooth using ultra-high frequency (UHF) radio waves – electromagnetic waves with frequencies of around 2.4GHz (2.4 billion waves per second). Essentially, a Bluetooth connection exists between a 'main unit' (a music source, say) and a 'peripheral' (a speaker or pair of headphones, for example). ![]()
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