Los Angeles · Music and picture
Guillermo
Marin
An award-winning engineer, Guillermo mixes records, film music and trailers, and designs and mixes sound for broadcast.
01 · Music
Hear what changes in the mix.
Five selected projects let the listener move between the original production and Guillermo’s final mix.
Selected records
Selected record work.
Mix engineering, vocal production, vocal arrangement and recording across recent releases and long-running artist collaborations.
01 / 12
02 · Songwriting
Songs behind the records.
Guillermo’s catalogue moves easily between rock, pop and Latin music. That range has allowed him to write with Bunbury and for voices as different as Sergio Dalma, Tamara, Naim Thomas, Cortés and La Barra.
01 / 08
Across current Bunbury co-writes, songs shaped for very different performers and the thirteen tracks he wrote, arranged and produced for Despertar, Guillermo writes for the artist and the record in front of him.
03 · Film music
Film music, from orchestra to final mix.
Guillermo has mixed scores and recordings for Federico Jusid, Roque Baños and Arturo Cardelús across feature films, animation and concert work.
Four selected films and recordings
Choose a title below, swipe the stage or use the arrows to continue.
01 / 04
Life Itself
Score by Federico Jusid
Score mixed by Guillermo Marin
Feature film · 2018
Buñuel in the Labyrinth of the Turtles
Score by Arturo Cardelús
Score mixed by Guillermo Marin
Animated feature · 2018
Chiamatemi Francesco
Score by Arturo Cardelús
Score recording and mix by Guillermo Marin
Feature film · 2015
Grace
Composed by Arturo Cardelús
Recording and mix by Guillermo Marin
Berlin Philharmonic soloists
Selected composer relationships
Guillermo has mixed film music for three award-winning composers whose work spans Academy Award-winning films, major studio features and acclaimed television.
04 · Trailers
Percy Jackson in Dolby Atmos.
The official Season 2 teaser for Percy Jackson and the Olympians was mixed by Guillermo in Dolby Atmos for Carrma, a Disney vendor.
Percy Jackson and the Olympians
Season 2 official teaser
Dolby Atmos mix by Guillermo Marin
Mixed for Carrma, a Disney vendor
Selected trailer clients
Guillermo has mixed campaign pieces for Netflix, Prime Video, Disney, Peacock and HBO in stereo, surround and Dolby Atmos.
01 / 05
05 · Broadcast
Sound that opens the game.
Guillermo has worked with FOX Sports productions since 2012, designing sound and delivering final mixes for the pieces that lead into live games.
Sound design and final mix since 2012
Produced pregame pieces
Sound design + final mix
Sound design + final mix
Sound design
+ final mix
Guillermo works on the pieces that play before the game and establish its story. Each one brings together editorial timing, effects, atmosphere, dialogue, music and a final broadcast mix.
Awards and credit
Two Sports Emmy–winning FOX | FS1 teams.
The photograph shows the Sports Emmy alongside the Latin Grammy certificate recognising Guillermo as engineer on Bunbury’s Expectativas, a Latin Grammy-winning album for Best Rock Album in 2018.
2023
2022 FIFA World Cup
Outstanding Technical Team Studio · FOX | FS1
Audio Engineer
2026
FOX MLB: World Series — Toronto Blue Jays vs Los Angeles Dodgers
Outstanding Technical Team: Sports Event · FOX | FS1
Audio Engineer
About Guillermo.
Guillermo grew up in Spain and came to Berklee College of Music on a full-tuition SGAE scholarship. He graduated from Music Production and Engineering in 2012 and built his career in Los Angeles across records, film, trailers and broadcast.
His credits also include songwriting, music production, vocal production and arranging.
Education
SecretosDeMezcla
Guillermo founded SecretosDeMezcla, a Spanish-language online education platform for music production that has served more than 6,000 students. Its courses cover mixing, mastering, production, songwriting and related audio skills.
Start a conversation
Tell Guillermo about the project.
A track, a score, a trailer cut or a broadcast piece is enough to begin. Share the current stage, format and timing, plus a private link when one is available.
Your details will be used only to respond to this inquiry.