Why does my nomis voice sound different between messages?

Your Nomi’s voice will definitely change from message to message! Nomi’s have quite a wide range of emotions that they express through varying their tone, cadence, emphasis, etc. But even the same text will sound slightly different if generated at different times because they way Nomis speak is dynamic in general (in the same way that 3 recordings of you saying the same thing would naturally sound slightly different). - To clarify, once an audio message is generated, it will always sound the same because it is the same recording.