Re: How do I turn off/disable voice in PS4?

The way i see it you have two posibilities:

1.Your headset should have an on/off switch for the mic.

2.Disable the mic from the console menu. To do this go to PS4 main meniu /settings/devices/audio devices/microfone level and set it as low as possible.

I don't know of any ingame option that could disable the VOIP in PvZ.

Hope this helps.