Digital Radio

Digital Audio

Thanks to team Epigon Media Technologies Pvt Ltd for their Innovative designs and development in Software driven ( Multi-core DSP from Analog Devices, Blackfin DSP BF 561 and its variants ) Satellite Radio with Multi input and Single Output option.

Multi core DSP was natural choice to perform MIMO ( multi input and multi output) receiver which had worked with WorlSpace Asia Star, Africa star satellites along with Terrestrial re-transmitted signal.

2 RF input ( L band Satellite signal received, L band Terrestrial signal received )

1 Audio output ( one audio output or data output is provided )

Above is very early version of MISO ( multi input, single output) satellite radio receiver that worked well.\

Digital Radio in India Prof SN 60th Endowment Lecture 2008 ( Madras Institute of Technology )

Digital Radio in CAR

https://www.epigon.in/html/products.html

Music Synthesis by ( Multi DSP from Analog Devices, SHARC DSP ) using 6 SHARC DSP such that 128 or more voice synthesis was feasible

Multi DSP was amazing choice then to perform Music synthesis with 128 Voice or more

Common external memory ( SRAM and DRAM( then) )

3 SHARC version

4 SHARC version

3 SHARC version

6 SHARC version

Above listed boards were used to perform Digital Audio Synthesis .

Vercoe, B.L., Haidar, M., Kitamura, H., Jayakumar, S.: Multiprocessor Csound: Audio-Pro with Multiple DSPs and Dynamic Load Distribution. In: Conference on Parallel and Distributed Processing Techniques and Applications, Las Vegas (2003)

Vercoe, B.: Audio-Pro with Multiple DSPs and Dynamic Load Distribution. British Telecom Technology Journal 22(4), 180–186 (2004).

https://web.media.mit.edu/~bv/cv.html

https://web.media.mit.edu/~bv/papers/BT%20paper.pdf

https://link.springer.com/article/10.1023/B:BTTJ.0000047597.07098.3a