Cambridge, UK, and Belfast - Jul 28, 2010 - CSR has acquired Belfast-based APT Licensing following a three-year collaboration under the CSR Extension Partner Programme, which saw APT's professional quality audio compression brought to consumers on CSR's wireless audio platforms. The acquisition enables a tighter integration of the Apt-X low latency audio compression codecs with CSR's audio products.

APT joins CSR with existing IP licensing agreements in place with consumer and technology brands, including Altec Lansing, Creative, Jaybird and Sennheiser.

APT has been working on the development of scalable codecs that can be adapted for specific acoustic environments, battery life savings, latency and error resilience.

APT and CSR started working together in 2007 when APT became part of CSR's Extension Partner Programme. The Program delivers audio enhancements to CSR's Bluetooth technologies, and Apt-X codecs have been offered as options on CSR's digital signal processor (DSP) in its BlueCore multimedia products. CSR now embeds this Kalimba DSP into the vast majority of its products, and high quality stereo audio has become an essential part of today's mobile devices and consumer electronics.

"We're very proud of what APT has achieved over the last 20 years and are delighted to be joining CSR in what is a very positive step towards the increased proliferation of the high quality codecs, into broader mobile and wireless consumer applications," said Noel McKenna, CEO of APT.

All 17 of APT's full-time staff will become an integral part of CSR's audio platform team, and CSR plans to retain the Apt-X product brand.