There's only two custom kernel on XDA for Hammerhead CAF (not counting the Breakfast Kernel on 4PDA):
The Whitepug kernel, good and in development
The everlasting TrueSight kernel, which I'm using right now.
It's up to you the choice
Inviato dal mio Nexus 5 CAF con Tapatalk 2
Thanks for the answer.. I just need sound control feature