How does my voice sound in terms of pitch?

Your voice sounds fine in terms of pitch. A bit more attention annunciation would help.You do sound like you are not projecting your voice like an experienced public Speaker would. Try taking an deep breath before you speak, then suck in a little more air. Use your diaphragm to boost your voice outward. Pretend you are speaking to someone who is half deaf, in the back of the room. You can be a great speaker. Go for it!