John Pratt's Human Design Chart

4/6 Sacral Generator

American sound engineer who, along with his brother Carroll Pratt (“the Pratt brothers”) formed a company called Sound One. Previously they had worked for laugh track inventor Charley Douglass. Their new company had an immediate edge over Douglass offering stereo recordings that matched the sound quality of stereo programs. Producers were so enthused by the ingenuity of the Pratts’ laugh track, that by 1978, most producers shifted from Douglass’ track to Pratt’s track for both utilizing and sweetening.
The Pratt brothers carried on the audience reaction legacy pioneered by Douglass on not only sitcoms, but live programs such as award shows, game shows, sports programs, specials and pageants. Much like their mentor’s company, Sound One was a mostly family business; John continued working with Carroll until 1980, while his wife, Carole, served as the company’s accountant.
John Pratt died on 6 June 2010 at age 83. His brother Carroll died on 11 November 2010 at age 89.
Link to Sound One

Analyze John Pratt With AI

Analyze Your Chart With AI

Show/Hide Full Chart

Discover More Famous People

Browse and analyze over 55,000 public figures and celebrities.

Browse All Famous People

What is HumanDesign.ai and how does it work?

Curious what makes John Pratt tick? HumanDesign.ai instantly maps their exact birth data into a fully interactive clickable bodygraph chart, letting you hover or tap every center, channel, and gate for plain-language explanations. Bella, the platform’s built-in AI guide, adds context in real time, translating complex mechanics into everyday insights so you can see how John Pratt’s strengths, challenges, and life themes play out on-screen.

The same tools are waiting for you. Generate your own Human Design Chart in seconds, open a library of 2000+ suggested questions, and chat with Bella as often as you like to decode your design, daily transits, and even relationship dynamics.

Want to compare energies? Save unlimited charts for friends, family, or clients, then ask Bella to reveal compatibilities, composite patterns, or coaching tips, all in one conversation thread.

Start free with core features, or unlock our Personal and Pro plans for deeper dives: unlimited Q&A, celebrity chart search spanning 55,000+ public figures, white-label PDF reports, branded content generation, and a professional profile with built-in booking for practitioners. Whether you’re exploring your own potential or guiding others, HumanDesign.ai delivers an ever-expanding toolbox of AI-powered insights—no spreadsheets, no jargon, just clarity at your fingertips.

Ready to see yours? Signup for FREE today!