Frequency and Pitch 

The BEST channel about phonetics!

Mathematically, there is a direct relationship between frequency and pitch. But as you said in the latter, it's not straight forward, because other factors keep that relationship from being one to one. Still, over all, beautiful presentation.

Love love love your channel im studying english from Argentina :)

I love your channel, thank you for your hard work

This was very informative whilst having little interest in phonetics, but was looking to learn for an audio production/sound design purpose. Thanks!

Such a very good video ...Thank youuu!!