У вашего броузера проблема в совместимости с HTML5
This video gives a quick overview of my home-brew software-defined Hf Rx. It is made using an ST-Micro Discovery board (ARM Coretex M4) and a home-designed radio board. It is very slick to operate and performance is superb, particularly given the build cost. For more details visit http://www.themadhowes.org.uk/g0etp/sdr_rx/