Tomasz Zernicki

Enhanced coding of high-frequency tonal components in MPEG-D USAC through joint application of ESBR and sinusoidal modeling

The new eSBR tool of MPEG-D Universal Speech and Audio Coding offers a great advantage in compression of high frequency content, however it produces audible artifacts for sounds whose pitch frequencies are strongly variable or exceeding the split frequency of eSBR. We propose an extension of the forthcoming standard by adding a high frequency sinusoidal tool. This tool introduces additional parametric information to the data bitstream in order to encode the challenging tonal components which are excluded from eSBR processing. Listening tests demonstrate benefits of the proposed approach for test items of strongly tonal character.

Car-mobile integration for advanced telematics services delivery

While the vision for the Connected Car has existed for some time, realizing it is proving a challenge. In this paper, we examine candidate car-mobile integration solutions which are necessary to deliver innovative advanced telematics services. We note the key role of the mobile in delivering these new services, primarily due to the rate of growth of mobile processing power and data rates. Further, the mobile acts as a hub for the users content, information and preferences. Based on this observation, we characterize how the mobile and the car should interact to realize the Connected Car. This is followed by an experience report of implementing a basic application using an advanced mobile-car integration technology - SmartDeviceLink. Finally, we conclude by noting deficiencies of current technologies and suggesting how the sector should evolve.