Firma Helle Willemstein

We are an Amsterdam based audio post-production studio with over 15 years of experience. Our studio shapes sound that enhances storytelling with precision and creativity. From planning to final delivery, we stay hands on every step of the way, ensuring consistency, care, and sound that blends seamlessly into your story.

As a dedicated team, we stay closely involved throughout the entire process. You won’t be passed from person to person. Instead, the same core professionals guide your project from start to finish. Whether it’s scheduling or sound design, we treat every detail with care and consistency, ensuring your sound gets the full attention it deserves.

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Our latests work

Sound Design
Re-recording Mix

Oh yes, we were in for a challenge. Capturing the pulse of the big city was essential, with dense urban atmospheres and every kind of chase imaginable. Extensive ADR sessions allowed us to maintain full control over the city noise.

Director:

Gonzalo Fernandez Carmona

Production:

Kaap Holland Studios

Sound Design
Re-recording Mix

We needed to go bigger than life. Impressive impacts, powerful whooshes and sweeping transitions drive the story from beginning to end, giving the visuals extra scope and drive.

Director:

Erwin van den Eshof

Production:

New Be

Sound Design
Re-recording Mix

Sync montage was a challenge due to ensemble scene's and the complexity of the locations. Careful editing was required to keep dialogue clear and believable. Score and atmospheres guide the emotional flow of the film. They support the scenes without ever overpowering the dialogue.

Director:

Theu Boermans

Production:

Kaap Holland Studios

Sound Design
Re-recording Mix

It is all about timing. Playful sound effects are woven in between the music, accentuating the rhythm of the edit and highlighting the comedy throughout the film.

Director:

Stephan Miras

Production:

Nijenhuis & Co

Sound Design
Re-recording Mix

To match the foley with the production sound in the sitcom scenes, we decided together with the foley studio to record everything half a meter further away than usual. As the film shifts toward “normal” proportions, the cinematic Steffen and Flip sound returns. A crazy sonic ride for a Krazy House.

Director:

Steffen Haars & Flip van der Kuil

Production:

Kaap Holland Studios

Sound Design
Re-recording Mix
Lekker met de meiden
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How do you celebrate a bachelor party nearby when you expected a sunny paradise? Pure chaos in a lousy hotel in Lelystad. From car chases to strip scenes set to cheesy organ tunes, we brought this sonic madness together in the mix. Blending the dreamy house themes of composer Guido Maat with Hawaiian guitar riffs, we ensured one hell of a rollercoaster ride for the girls.

Director:

Anna van Keimpema

Production:

New Be

Sound Design
Re-recording Mix

Having Amsterdam as the background of the movie is fantastic. The UNESCO 17th-century canals and wide rooftop panoramas give us room for a beautiful, calm city soundscape. The chic interior of the 5-star Hotel Des Indes, located in The Hague, shines through in all the foley, sound effects, and ambient sounds.

Director:

Lodewijk van Lelyveld

Production:

New Be

Sound Design
Re-recording Mix
De Z van Zus
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A road movie about twin sisters scattering their father's ashes in Spain together with their best friends is the perfect setup for a great story. Moving from location to location, we tackled and optimized the production sound for every unique environment. Working closely with director Jelle de Jonge, we brought every sonic detail to life in the mix, seamlessly blending it with Alexander Reumers’ beautifully layered score.

Director:

Jelle de Jonge

Production:

Tom de Mol Productions

Sound Design
Re-recording Mix
Moedermaffia Seizoen 3
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In the final season, the characters had more space to show greater depth as the story came to a close. For the audio, there was plenty of room to make it as detailed as possible for this great TV show. We thoroughly enjoyed every moment of working on three seasons with director Anna van Keimpema.

Director:

Anna van Keimpema

Production:

Kaap Holland Studios

Sound Design
Re-recording Mix
De Break-Up Club
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Romantic comedies demand flawless audio. With the gritty city of Rotterdam as the film's setting, our main challenge was taming the production's urban noise. Through a combination of expert editing, advanced plugins, and AI, we transformed the chaos into a gentle, immersive atmosphere.

Director:

Jonathan Elbers

Production:

Tom de Mol Productions

Sound Design
Re-recording Mix
Music Scoring
De Pudding Club
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Six crazy stories that called for extraordinary sound design. In this world, there are no rules—anything goes to make the narrative bigger and bolder. With a different director for each episode, creating this series was a thrilling ride.

Director:

Flip van der Kuil, Stephan Miras, Michiel ten Horn, Teemong, David-Jan Bronsgeest, Henry van Loon

Production:

Kaap Holland Studios

Sound Design
Re-recording Mix
Music Scoring

Three boys from the hood in Amsterdam-West find themselves getting into deep trouble. Big talk creates big problems, providing the perfect canvas for sound design at its best. Alongside the soundscape, we created the Turkish-infused score, making this both a challenging and incredibly rewarding project.

Director:

Flip van der Kuil, Stephan Miras, Gonzalo Fernandez Carmona

Production:

Kaap Holland Studios

Studio’s

We offer four specialized rooms tailored to every stage of audio production from editing and adr-recordings to re-recording mixing and deliveries. Each space is designed for focus, comfort, and precision, giving every project the ideal environment to sound its best.

Studio A
Studio B
Studio B/C
Studio C

Got an idea, project, or just a question?

Reach out, we’d love to hear from you!

Contact us
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