oleg667 , And you copied more with google_audio_codec.xml file called _mixer_patch_wcd 9326.xml? It includes setting hifi sound. If not then it is understandable why you do not hear the difference in sound. You HiFi simply not included.
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Soon update mode skins.
The installation will auto -
Through TWRP and improved sound.
And while I test ... ((-.-))
Post has been editedBig_Brazer - 15.10.17, 16:23