Nice bass vocalization! Idk what you've used here (I'm on mobile) but if you modulate a sine wave with a formant 2 wave, and then do some filter modulation on that in tandem you can make some more cool vocalizations, especially vowel sounds. Hope that's helpful! :3
![](http://at-cdn-s03.audiotool.com/2024/11/22/documents/hpe06acdxzz/snapshot640x480-c03719b539ce44ca87e6c3e9c0ad11e8-320.jpg)