6. Why music lag after display off?

A: This is due to CPU speed too low when screen if off. Make sure you are not using some battery saving CPU governor.

Switch CPU governor to ondemand/interactive to increase CPU speed or increase minimum clock speed.



7. Where is minimal phase equalizer?

A: FIR Equalizer is the name of our EQ, minimal phase is a type of EQ. Its activated for High Quality Mode and Super Audio Quality drivers.



8. Why does the effect keeps on skipping/cutting (on off on off spontaneously)?

A: Submit bug report.



9. Why no effect on Third-party players such as Poweramp and TTPOD?

A: Disable their own sound effects.



10. Why no effect in MIUI player?

A: Try turn off MIUI default equalizer.



11. Im using Meizu, Flyme system, why effect gone after i display lyrics?

A: Flyme modified Android's Audio principle, so lyrics will be treated as music effect by the music player, so V4A cant be used.



12. V4A FX/XHiFi effects suddenly disappeared?

A: Android system kills certain processes due to memory limits. Install V4A app as system app (Put in /system/app/ and restart)



13. Why there is background noise when using V4A effects?

A: This is Android's MusicFX bug, this will happen on all other sound mods.

Suggestion: Backup and Delete /system/lib/soundfx/libbundlewrapper.so



14. Why bass reduced in v2.3.x?

A: Due to sound improvement, audio effects are more precise than before. Therefore, re-adjust your settings.



15. Why is volume reduced in v2.3.x?

A: Volume controlled to reduce noise level. (THIS does not mean you can reduce noise by lowering volume xD)



16. Why is there more CPU/Battery load in v2.3.x?

A: Quality improved for NEON devices. For now you cannot change to battery saving priority.



17. Why ViPER4Android FX/XHiFi always FC?

A: Uninstall and Reinstall V4A. If not submit bug.



18. Why ViPER4Android FX/XHiFi creates unexpected effects and different from other users?

A: Use Normal Mode and disable other sound mods such as Noozxoide. If not, reinstall.



19. ViPER4Android FX/XHiFi doesnt run after reboot?

A: Check anti-virus or any startup manager whether V4A is disabled on startup.



20. V4A FX/XHiFi effect gone after using data-killer?

A: Please add ViPER4Android FX/XHiFi to data-killer whitelist or exception.



21. V4A XHiFi effects gone after reaching certain volume? (~70%)

A: This is due to Sony Xperia hearing protection library.

Suggestion: Backup and Delete /system/lib/soundfx/libhearingprotection.so



22. Why volume reduces after 10 seconds?

A: This is not caused by V4A. Most probably you installed a bad and faulty xLOUD, ClearPhase or S-Force Front Surround port.



23. In-call volume reduced?

A: V4A will not affect call volume.



24. What if my phone/tablet cannot detect headset plugin?

A: Use lock effect mode and choose headset.



25. V4A effects will spoil internal speaker/headset?

A: Firstly, there's an audiophile limit in your phone, even if you max every single settings in V4A, u will never achive that limit.

If the limit is achieved, your ears will blown off before the headset.

If your earphone is not used to high volume/bass, with long period of high volume/bass will cause your headset to spoil (without V4A it will also spoil)

For speaker, if a new phone straight away max the volume, within few days there will be distortion. Start off with 50~70% volume and after some time only max the volume.