Voodoo Sound - Complain about bad sound smartphone? Will solve this problem once and for all. This app is not for nothing that bears the name, because its principle is based on the fact that you, as a voodoo priest do a little dance with a tambourine, and adjust the sound in the desired way. Of course it is necessary to note that the app requires rights to root access, and not everyone will be able to use it. However, if you already got these rights, then you can install it, and configure the sound as you want, because it will significantly expand the standard settings.