SMD ceramic capacitors producing ticking sound?
Most ceramic capacitor dielectrics show piezo-electric effect, which causes them to vibrate with the applied voltage. If that voltage has an audio frequency the vibrations may be audible.  

That's no reason for concern, hundreds of billions ceramic capacitors are produced each year which show this effect, and which perform fine on the PCB.  

The sound can be reduced by using smaller packages. In larger packages stretching/shrinking  the PCB may act as a soundboard. With smaller packages this effect is smaller.  

Note that there are no measurable piezoelectric effects in Class 1 capacitors, such as C0G or NP0 - neither of which is considered ferroelectric.  

Further reading
Piezoelectric effect in ceramic chip capacitors