This is a ported Dolby Sound module zip flashable to your android device via cwm to boost your android device’s sound effects nicely. This should work on most 4.3+  Android Roms

Download one of the zips from XDA thread link given below

Cyanogenmod and AOSP roms also supported. It works with DSP (Digital Sound Processing) manager on Cyanogenmod On CM11 Roms.

Installation

– Boot to CWM recovery

– Flash the downloaded Zip

– clear cache and dalvik cache and reboot, Done!

Enjoy the MoD!

XDA Discussion link: http://forum.xda-developers.com/nexus-4/themes-apps/mod-dolby-digital-plus-huawei-t2687470

Files Size:  400KB (varies)