(WXYZ) - Mark Cooper has built a career voicing superheroes and video game characters - all from a home studio in metro Detroit.

One look around the room makes it clear where many of those voices begin. Comic books, superhero memorabilia and microphones fill the space, including a  Power Ranger  helmet that holds a special place for Cooper.

 Oh, yeah. I've always been a fan of 'Power Rangers' stuff. A lot of the stuff I enjoy is from my childhood. That's my official helmet from 'Power Rangers Beast Hunters.' Some of the stuff on the wall are legends and individuals I was able to meet,  Cooper said.

At 39, the Detroit native is a musician, producer, teacher and voice actor - a career he only started pursuing a few years ago.

 Voiceover acting is being able to bring a character or any kind of piece of art to life,  Cooper said.

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Voice acting stretches far beyond cartoons and video games. Voice actors can be heard in commercials, audiobooks, phone systems and animation, among others - including one of Cooper's latest roles, playing a 10-year-old superhero named Jet Boy.

 My name's Jet Boy and I'm here to save the day,  Cooper said in character.

It's not exactly what you'd expect from someone whose normal voice sounds nothing like that. Cooper said the ability to shift between voices comes down to dedication.

 It's really about practice. I've always been a fan of trailer voices. But I also think about the passion behind a kid as a superhero. Being able to have that ability to go back and forth with that is rewarding at the end of the day,  Cooper said.

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The transitions between voices can even catch Cooper off guard in everyday life.

 Yes. Absolutely. Sometimes, I'll be at the grocery store like the other day and they were like, are you getting a case of water? I was like, that is correct,  Cooper said.

AI poses a growing challenge for voice actors

As the technology behind voices evolves, many voice actors are now competing against something that doesn't need a microphone at all: artificial intelligence.

Cooper said his work has been affected.

 Absolutely,  Cooper said,

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