Useful links:

http://www.anandtech.com/show/9552/qualcomm-details-hexagon-680-dsp-in-snapdragon-820-accelerated-imaging

https://developer.qualcomm.com/software/hexagon-dsp-sdk/dsp-processor

SIMD/VLIM would be very useful for audio processing, because we typically process audio as samples, and often apply the same operation to each sample. Therefore we could make good use of SIMD