 Hello everybody, it's a short tutorial on how to use Blender as a frequency generator. All you basically need is a speaker, which you can add here. You don't need to do that, we already got one. And you need a sound of exactly 1000 Hz, which sounds like that. But we don't want to use that sound, we want to have an A. So all we have to do is change the pitch to 0.440, which is exactly an A. And if you play this, you got an A. So you hear that it sometimes doesn't work that well. So what you need to do is go here. I'll just open properties a second time, because I need it two times. Then I go back to audio and update animation cache. I need to do that more often, so I'll just put it up here. Now you got an A. You can also use this to play a major trite, CEG. So I'll just duplicate the speaker three times. And I'll type in the right frequencies. We'll take the C4, so it's 0.262, or 262 Hz. The E is 0.330, just about. And the G is 0.392. And we'll update it again. And let's see how it sounds. You can even go higher. I don't know if you've listened. Go up to 5, so 5,000 Hz. It doesn't sound very good, so we'll just turn down the volume here. And here, update animation cache. And you get this nice sound. Now if you want to export it, best to use here the audio, and then just combine it later. Alright, that's it for the tutorial. Have fun.