I was in the car with my 14 Yr. old daughter, and she commandeered the radio. She tuned a teen pop station, and a song played that she mentioned she liked a lot. Google music search told me it is called Summer, by Calvin Harris. I asked what made her like it so much, as I want her to develop a critical mind as far as music is concerned, and all I heard was formulaic rubber-stamp electro pop, with lyrics that made my brain shut off, as attractive to me as "Colored Sugar Bomb" cereals. Her response was something I've known for decades, and which is not often discussed here:

The only thing she could identify that made her like the song was his deep voice!

Generally speaking, if you have made half a positive impression on a woman, and start talking in a deeper voice han expected, you'll have half her defenses down ( to elegantly put what you'll have down). Women are very much turned on by a deep voice, and the best part is that that can generally be learned and trained.

Start talking out loud to yourself, or acting situations while alone, and visualize talking from the bottom of your lungs, instead of from the back of your nose. Little by little you'll be able to raise the volume, and if you keep doing it, you'll do it automatically. It's like keeping frame, it takes will and practice.

TlDr; Learn to make your voice rumble. Practice talking from the bottom of your lungs. It. Drops. Panties.

EDIT, Anecdote I just remembered: While in college, I was in a LTR with a girl, Physically I'd say a 7, but with a great personality, a truly wonderful laugh, brains... A catch I didn't keep because of going LDR. We parted great friends and still keep contact after decades.

Part of our group of friends was a guy who could have been the bastard child of Tommy Lee Jones. Once, discussing our group of friends, a really interesting topic as it was an international Uni, she remarked that if she wasn't going out with me, she'd try to hook up with him, not because of his looks, but for his voice! This guy growled rather than talked.