Beats Mod GB & ICS (Beats Dolby SRS Equalizer)
You can use the zip for any purpose without asking, since I take and learn from this community.
Fix beats icon disappear from sound effect dialog when headset plug or unplug, at the same time fix the chain bugs of this bug.
Fix unknown bug introducing by archiver 64bit 7-zip, by using default Windows 7's zip archiver.
The fix is only modifying HtcListen.apk, and is for XE base ROM only, I didn't include for non-xe ROM, since 3.32.401.105 is out there for a long time, but in case, if you want to flash it on non-xe ROM, just use this HtcListen.apk and push it to your phone or, insert and replace it to Beats_ICS_v5.1.zip and flash.
Please report bug if any, so that I know what to fix, thanks.
HtcStreamPlayer.apk mod for ICS ROM base 3.32.x,
This is a quick & dirty mod for Player launch by Htc Watch, which enables all 4 effects, tested with speaker and wired headset. The red beats icon not shown on status bar even if beats is selected. Not tested on BT yet. I may improve it when I have time to read the code, and it is not easy to analyze, as this is more complicated than HtcVideoPlayer.apk, just don't expect I could fix it.
HtcVideoPlayer.apk mod for ICS ROM base 3.32.x,
This mod enables all 4 effect available for xe and non-xe ROM, no-effect, srs, htc51(dolby) and beats. Beats sounds nothing on bluetooth.
For ICS ROM base 3.32.x, non-xe ROM, flash Beats_ICS_v5.1.zip
For ICS ROM base 3.32.10x, XE ROM, flash Beats_ICS_v5.1_XE.zip
For GingerBread Sense 3.5, ROM base 2.08.401.1, Flash Beats_GB_v4.2.zip
The mod is basically combine XE and non-XE sound effect styles into one.
/etc/TPA2051* are volume boost tweak
/etc/soundimage/* are my preference on srs, dolby and beats over BT tweaks
TPA2051* and soundimages can be deleted, and stock is used instead.
Beats cannot be delivered thru bluetooth and so it is moded to use srsfx_trumedia_movie.cfg soundimage to emulate beats effect.
On ICS builds, the dolby and srsfx have same effect, it is supposed to use srsfx_trumedia_51.cfg and srsfx_trumedia_music.cfg soundimages respectively, but due to htc's ICS build has added global srs and beats feature, so dolby and srs were using srs_global.cfg soundimage, however bluetooth is normal, I haven't found a way to fix it, just live with it, if you want your preference of srs on wired headset, edit the /etc/soundimage/srs_global.cfg
There is a feature of beats BT on latest ICS, however it is still under testing.
Most frequently ask question: Note I may be wrong, but I prove it by my music background (piano/violin etc...) See below for my descriptions.
No-Effect sounds like beats - from my understanding, Beats Effect is just bass enhancement only from No-Effect, and nothing more, bass gain is not louder either, that's why it is called Bass enhancement or BestsBass, it is not bass boost (SRS) which can boost a specific range of freq in strength and etc. What bass enhancement really do is emphasize low freq part something like prolonged the rythm, that's why you feel more rythmatic! makes you have an illussion of beating, and that's all the difference. Beats is louder, because on non-xe ROM, the TPA2051* (amplifier config) is configured 0x50 less volume, and xe ROM is 0x55, hence XE is louder, some ROM base you can differentiate no-effect and beats easily, because the volume is much more differ, but when it is close, you will say No-Effect sounds like beats, and it is caused by libraries.
To make sure beats is in effect or not, use this command
adb logcat BestsBass:V *:S
and you will see what files are loaded when turn on beats, and when no-effect, you will see Effect Release ...