HISTIO on Instagram: "A behind-the-scenes look at Disney’s 1941 production reveals how the sound of *Dumbo* was brought to life — especially the voice of Casey Jr., the talking train. 🎬🚂 Long before digital tools, sound artists relied on pure ingenuity. Glass scrapers, throat tubes, and early talk-box techniques were used to create expressive, almost human voices for animated characters. Every hiss, puff, and vocal tone was performed by hand, captured in real time. This rare footage, taken fro