At the age of eight in South Salem, New York, Ludwig was so fascinated with his first tape recorder he used to make recordings of whatever was on the radio. 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, New York, where he was also involved in the sound department and played principal trumpet with the Utica Symphony Orchestra. Inspired by Phil Ramone when he came to the school to teach a summer recording workshop, he ended up working as his assistant. Afterwards, he was contacted again and offered work with Ramone at A&R Recording. Together, they did sessions on projects with The Band, Peter, Paul & Mary, Neil Diamond and Frank Sinatra.
After a few years at A&R, Ludwig received an offer from Sterling Sound, where he eventually became a vice president. After seven years at Sterling, he moved to its competitor, Masterdisk, where he was vice president and chief engineer. In 1993, Ludwig decided to take control over his career by starting his own record mastering facility in Portland, Maine, named Gateway Mastering Studios, Inc..
His mastering credits are extensive, and include albums for many major classic artists, such as the Kronos Quartet, and rock acts, including Jimi Hendrix, Phish, Megadeth, Metallica, Gloria Estefan, Nirvana, The Strokes, Queen, U2, Sting, The Police, Janet Jackson, Mariah Carey, Beck, 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, Supertramp, Will Ackerman, Pet Shop Boys, Radiohead, Elton John and Daft Punk.
He has occasionally undertaken long projects, such as remastering the entire back catalogues of Rush, Dire Straits, Creedence Clearwater Revival and the Rolling Stones, Ludwig cites his most musically satisfying projects as: the CD reissue of Music From Big Pink (The Band), There's a Riot Goin' On (Sly and the Family Stone), Led Zeppelin II, Painted from Memory (Bacharach & Costello), Spirit (Jewel), Loreena McKennitt, and Ancient Voices of Children (George Crumb). Ludwig still actively influences the music industry. As a judge for The 8th, 10th, 11th, 12th, 13th and 14th Annual Independent Music Awards, his contributions helped assist the careers of upcoming independent artists.
Ludwig is active in the Audio Engineering Society and is a past chairman of the New York AES section. He is on the steering committee of the Producers and Engineer's section of National Academy of Recording Arts and Sciences.
Ludwig has won many Technical Excellence & Creativity (TEC) Awards.First winner of the Les Paul Award 1991 from the Mix Foundation created to honor individuals or institutions that have set the highest standards of excellence in the creative application of recording technology.
1986, 1987, 1989, 1990, 1994, 1995, 1996, 1998, 2000 TEC Award OUTSTANDING CREATIVE ACHIEVEMENT - Mastering Engineer
1994, 1995, 1996, 1998, 1999 OUTSTANDING INSTITUTIONAL ACHIEVEMENT - Mastering Facility
Since the inception of Gateway, Ludwig/Gateway have been regular winners of TEC Award for "Best Mastering Engineer" and "Best Mastering Facility", namely the following:2001 TEC Award OUTSTANDING CREATIVE ACHIEVEMENT Record Production/Album: - Riding With the King, B.B. King & Eric Clapton
2002 TEC Award OUTSTANDING CREATIVE ACHIEVEMENT Record Production/Single or Track: - The Space Between • Everyday, Dave Matthews Band
2004 TEC Award OUTSTANDING CREATIVE ACHIEVEMENT Record Production/Album - Hail to the Thief, Radiohead
2006 TEC Award: OUTSTANDING CREATIVE ACHIEVEMENT Surround Sound Recording - Brothers in Arms-20th Anniversary Edition, Dire Straits
2009 TEC Award: OUTSTANDING CREATIVE ACHIEVEMENT Record Production/Single or Track - "Viva La Vida", Coldplay
2009 TEC Award: OUTSTANDING CREATIVE ACHIEVEMENT Record Production/Album - Viva La Vida, Coldplay
2014 TEC Award: OUTSTANDING CREATIVE ACHIEVEMENT Record Production/Album - Random Access Memories, Daft Punk
2004: Album of the Year - No Es Lo Mismo, Alejandro Sanz
2013: Album of the Year - Vida, Draco Rosa
2005: Outstanding Achievement in Sound Mixing for Television Non-Fiction, Variety or Music-Series or Specials: - Hammersmith Odeon London 1975, Bruce Springsteen and the E Street Band
2012: The Association of Professional Recording Services Sound Fellowship - received 27 October 2012
2015: AES Gold Medal