У вашего броузера проблема в совместимости с HTML5
In this video I explain how to configure Voxengo Span for FL Studio 10. Span is a spectrum analyser. It allows you to see the frequencies of pairs of instruments - e.g. kick and bass, and is very useful for helping to identify where instruments are clashing ... that is, occupying the same frequencies.
It has quite a rich feature set:
Output signal power statistics
Clipping statistics
Stereo and multi-channel analysis
Channel grouping
A/B comparisons
Spectrum smoothing
Correlation meter
Mid/side analysis
Preset manager
Contextual hint messages
User interface window resizing
K-metering
Internal channel routing
Undo/redo history
All sample rates support
Span is free and can be downloaded here:
http://www.voxengo.com/product/span/