Off the hype-laden floor of the Las Vegas Convention Center, DSP Group (www.dspg.com) was across the street showing off its vision for DECT through CAT-iq and the use of its chips in a multimedia, multi-screen home environment. However, the company is also quietly rolling in numerous improvements to its voice offerings with more wideband codecs and other processing tricks.
In its vision of DECT beyond voice, DSP Group demonstrated CAT-iq systems for home control and automation, linking together smoke detectors, motion detectors and video cameras with its silicon. Wireless HD stereo headphones were demonstrated for use with music playback and videoconferencing.
Using CAT-iq and DECT wireless technology to network the home for service provider applications – home to broadband (H2B) services – provides “interference-free, extended range and unrivaled audio quality,” said the company, with capabilities able to be cost-effectively implemented in TV, PC, set top box (STB) tablet, and gateway hardware, either integrated or added on via USB dongle.
Re-inventing/imaging the home telephone is another area DSP Group was promoting, with a multimedia/multifunction cordless touch screen phone that could provide on-board functionality such as picture dialing, call filtering/recording, and remote call logs to home phone hardware. One notational device doubled as a TV/STB controller and Android access point for controlling home monitoring and automation.
You can expect to see (yet another) app store built around DECT hardware and Android-based applications to enhance the functionality of the next-generation home phone.
However, DSP Group is not standing still on its support of HD voice. Currently supporting end-to-end HD voice support wirelessly via DECT and CAT-iq 1.0 using G.722, the company plans to incorporate G.722.1 Annex C to support 14 kHz audio using a 32 kHz audio sample rate; G.722.1 Annex C is an implementation of the Polycom Siren 14 codec.
In addition, more computing power with the next generation of voice processing silicon means the company will be able to implement “wideband voice synthesis” – upconverting PSTN narrowband calls to wideband quality, along with numerous other features, including advanced noise cancellation and processing within the phone rather than conducted as a core network processes on the media stream.