Voice Quality Problem in WhatsApp (CM12.1 Snapshot)

Hello,

I got a little problem.

I am using currently CM12.1 Snapshot on my Moto G2 Titan.

If I record Whatsapp Voice Notes, the quality is a piece of **** and my voice is like cancer......

On the stock Motorola ROM is the quality really nice, but here.....

What can I do for fix it?

Regards.

inFiniTyzZ