Born in Westchester, New York, of Russian and Hungarian Jewish ancestry, Fausty “helped shape the sound of Latin music.” [4] Fausty originally wanted to be a radio disc jockey but became interested in sound engineering after a chance visit in 1960 to Mirasound Studios in Manhattan.
[5] After a chance meeting with Larry Harlow at a friend's jam session, Harlow would later call Fausty and ask him to audition at Good Vibrations Sound Studios (formerly RKO Sound Studios) which was owned by Fania Records.
Fausty was instrumental in fitting the studio with the latest technology including a retractable ceiling designed specifically to isolate the percussion sections from interfering with other aspects of the recording.
[6] Fausty recorded with Willie Colón, Héctor Lavoe, Ray Barretto, Johnny Pacheco, La Sonora Ponceña, Roberto Roena, Cheo Feliciano, the Lebrón Brothers, Ismael Miranda, Larry Harlow, Típica 73, Fania All-Stars, Bobby Valentin, Javier Vazquez, Pete "El Conde" Rodríguez, Mon Rivera, Tommy Olivencia, Caco, Mongo Santamaría, Lalo Rodríguez, Simon Perez, Rocky Pagan, Joe Cuba, Puerto Rico All Stars, La Lupe, Diego Melon, El Gran Combo, Willie Rosario, Johnny "Dandy" Rodríguez, Jerry González, Eddie Palmieri, Kip Hanrahan, Jack Bruce, Milton Cardona, Roberto Torres, Conjunto Classico, Daniel Ponce, Los Van Van, David Burn, Angel Canales, Christie Mcfol, Astor Piazzolla, Justo Betancourt, Johnny Ventura, Louie Ramirez, Bobby Rodriguez, Papo Vázquez, Munequitos de Matanzas, Tito Puente, Hilton Ruiz, Bronx Horns, Orlando Valle, Paquito D'Rivera, Yomo Toro, Gilberto Santa Rosa, Chucho Valdés, Manny Oquendo, Puerto Rican Power, Grupo Niche, Chico O'Farrill, George Benson, Jack Bruce, Vocal Sampling, Tito Nieves, Fernando Villalona, Víctor Manuelle, Luis "Perico" Ortiz, Los Vacillos, Esau Delgado, Angel Melendez, Machito Rivera, Ralphy Leavitt amongst others.
He won Grammys with Chucho Valdés, Celia Cruz, Rubén Blades, Marc Anthony.