Ludwig is a classical musician by training, having obtained his bachelor's and master's degrees from the Eastman School of Music of the University of Rochester in New York.
[4] Inspired by Phil Ramone when he came to Eastman to teach a summer recording workshop, Ludwig ended up working as his assistant.
[5] Ludwig's mastering credits include albums for classical artists such as the Kronos Quartet, and rock acts, including Jimi Hendrix, Phish, Rush, Mötley Crüe, Megadeth, Metallica, Gloria Estefan, Nirvana, the Strokes, Queen, U2, Sting, the Police, Janet Jackson, Mariah Carey, Beck,[6] Guns N' Roses, Richie Sambora, Tool, Simple Minds, Bryan Ferry, Tori Amos, Bonnie Raitt, Mark Knopfler, Leonard Cohen, David Bowie, Paul McCartney, Bruce Springsteen, the Bee Gees, Madonna, Richard Wood,[7] Supertramp, Will Ackerman, Pet Shop Boys, Radiohead, Elton John, Daft Punk,[2] Avenged Sevenfold[8] and Alabama Shakes.
[6] Ludwig occasionally undertook larger projects, such as remastering the back catalogues of Rush, Dire Straits, Creedence Clearwater Revival and the Rolling Stones.
"[12] 2012: Association of Professional Recording Services Sound Fellowship - received 27 October 2012[14] 2015: AES Gold Medal[15]