1) Flash any DesireHD ROM, your choice!
2) Flash the attached zip file with CWM (it includes the Inspire 4G kernel)
3) Install the attached PropEditor apk, and run it.
4) Open build.prop using PropEditor and change
Let me know how it goes! I do hope I'm not going crazy
I'll update tomorrow with what exactly I did. Too tired to type it out now, GOODNIGHT.
THE DIFFERENT VERSIONS:
-V2: Better quality than V3, speakerphone microphone does not work
-V3-test: Slightly worse quality than V2, better than no sound fix, speakerphone microphone works 100%
V3-test: Removed extra files, sound quality is around the same (or slightly worse) compared to V2. Speakerphone Mic should work
V2: Removed AIC3254_REG_DualMic_MCLK.csv and AIC3254_REG_DualMic.csv as suggested by BelacNongaw to fix mic