CSR has bought Belfast based APT Licensing in a move which will allow the latter's apt-x low latency audio compression codecs to be integrated more tightly with CSR's next generation audio products. APT specialises in audio compression solutions which retain the full integrity of the digital audio and which are optimised for instant real time audio streaming. Its apt-x suite has been proven in wireless, broadcast and professional live performance applications. The apt-x algorithm is said to be particularly suited to Bluetooth.