“The eye sees better when the ear hears better.”
Walter Murch, Oscar-winning editor and sound designer for Apocalypse Now
and The English Patient.
I’ve spent 35 years sculpting soundscapes that don’t just accompany the image — they reveal its soul.
From subtle ambiences to layered cinematic textures, my work seeks to evoke, not just explain.
Sound, to me, is more than design — it’s emotional architecture. And this commitment allowed me to work on several Prime Video movies.
Walder Martinez
MOVIES ON PRIME VIDEO
Title: El Grito en la Sangre / The Scream from the Blood
Director: Fernando Musa
Country: Argentina
Year: 2012
My role: Composer / Music Supervisor / Music Mixer
El Grito en la Sangre
Drama - Argentina - 2012
Adaptation of the novel "Sapucay" by Horacio Guarany. The year is 1952.
Somewhere in the interior of Argentina, popular belief holds that when a man
dies by betrayal, he must be avenged by his firstborn, so that his soul may rest in peace. This is the story of Cali (Abel Ayala), a teenager whose father was killed during a horse race, and he must quickly transform into a man forced to avenge that death. Cali seeks revenge, but first finds the love of Lucía (Florencia Otero), and help from Don Chusco (Horacio Guarany), an old ranch foreman who adopts him as his own son.
Title: Absence of Innocence
Director: Legend
Country: USA
Year: 2022
My role: Full Audio Post-Production
Absence of Innocence
Drama / Thriller - USA - 2022
Torris is used to having things his way. When he meets Drew her lack of interest in him piques his interest in her. Refusing to take no for an answer, Torris' growing obsession with Drew leads him down a path which leads to tragedy.
Title: Omission
Director: Legend
Country: USA
Year: 2023
My role: Full Audio Post-Production
Omission
Drama / Thriller - USA - 2023
A female escort starts a relationship with a married man. He does not disclose
that he's married, and she does not disclose that she's an escort setting the stage for conflict, pain, and remorse.
Title: Sins of DavidDirector: Johnick Petry
Country: USA
Year: 2023
My role: Full Audio Post-Production
Sins of David
Drama / Thriller - USA - 2025
Like all men, David Monroe has a vice. When he sees Kamara, the wife of his top executive and most loyal employee, David has to have her at all costs. David’s attempt to save his nephew’s life and also cover his own sins ends in a
murderous triangle.
Title: City Boy
Director: Legend
Country: USA
Year: 2023
My role: Full Audio Post-Production
City Boy
Drama / Thriller - USA - 2023
A talented young music artist is presented with a life-changing opportunity. As he attempts to take steps toward his future, inner-city trappings and his past are holding him back. Will he be strong enough to make it out?
Title: Carb-Loaded: A Culture Dying to Eat
Director: Lathe Poland
Country: USA
Year: 2014
My role: Spanish Dubbing Artist / Re-Recording Mixer
Carb-Loaded
Documentary - USA - 2014
Carb-Loaded: A Culture Dying to Eat is a chronicle of the things it's
writer and director Lathe Poland learned after he was diagnosed with
Type 2 diabetes. He sought to find out why he got sick, because he
didn't fit the classic picture of an adult onset diabetes sufferer. He
quickly learned that much of what he knew about healthy eating was based
on myths or fifty year old science. In the film he searches out why
Americas modern food culture is killing us. The upside? There is a lot
that can be done!
English 
Spanish