Real-Time Visualization Of Audio Feed. I Want To Sign To A Microphone And See My Voice. Is There An App For This?

[Francuz]

Real-time visualization of audio feed. I want to sign to a microphone and see my voice. Is there an app for this?

I want to learn how to speak better and an application that would allow me to transform my signing into an visual output would help me to better understand my own voice.
So far I've found only music or already recorded audio files to be visualized.
I want this to be real time visualization.
I want to speak into a microphone a have a visualization of it, not just basic how lound is my voice something more elevated.
Thanks!

[Buenchico]

This freebie is worth a look:
http://friture.org/

[Old_Geezer]

Loads: look for singing apps at Play Store

[wolf63]

OG - the poster wants a signing app and not a singing app.