In the previous chapter, we generated all sorts of sounds. We did this in DirectX and in Unity. We had ambient sounds to start with, sounds that sound like they are all around us. We finally moved on to spatial sounds. All the things we looked at in that chapter also apply to voice. After all, voice is just another source of sounds.

We could, of course, pre-record sentences by having a voice actor stand in some booth with a microphone and record what she has to say. This can be a great way to get good-sounding content. After all, this will sound very natural and very realistic. Again, we want to strive for an experience that is as realistic as we can get it. This is your best option.

When you do this, you have to think of all the things you want your app to say to the user. When you have this list, have someone read those items into a high-quality microphone and record that. Then you can import those sounds into your app, preferably at 48,000 Hz, and play that back whenever...