Boom Swamp SURROUND

THE SOUND OF A HABITAT IN CONSTANT TENSION

SWAMPS captures the acoustic complexity of wetlands where land and water constantly overlap. Recorded across two expeditions to Florida over three years, the library documents frog sounds, alligator behaviour, shifting insect beds, reed movement and natural squelch sound textures using BOOM’s ORTF 3D system with SCHOEPS microphones. Field recordist Matt Mikkelsen dedicated extended periods to capturing natural wildlife behaviour rather than staged activity, providing material that behaves reliably in post. The collection offers audio professionals a technically consistent set of swamp sound effects suited to detailed and immersive work.

Recording the threshold between land and water

Swamps shift continuously throughout the day, with acoustic signatures that rise and fall across different sub ecosystems. Before placing any microphones, Matt spent time learning how each area behaves, from cypress groves to open wetlands. Frog sounds, alligator movement and dense insect layers were captured using calibrated ORTF 3D arrays to maintain spatial accuracy. Clean, unprocessed recordings ensure predictable behaviour in both realistic atmosphere building and creative sound design.

ACCURATE 3D FIELD RECORDINGS FOR PROFESSIONAL WORKFLOWS

SWAMPS was recorded using BOOM’s ORTF 3D configuration, ensuring stable localisation and phase integrity in immersive formats. Long stretches of natural behaviour were documented, from shifting insect beds to alligator bellows at a range of distances. The combination of SCHOEPS microphones and Sound Devices recorders maintains clarity despite extreme humidity and heat. Editors can work with confidence knowing the material behaves consistently in complex multi-channel sessions.

Wildlife in natural behaviour

These recordings document wildlife exactly as it behaves in the wild. Frogs appear at several distances, wading birds such as egrets and ibises are captured feeding, and alligator calls include close and distant territorial bellows. Matt notes that many alligator recordings used in media come from controlled environments, whereas these captures reflect natural behaviour in the field. The result is material with authentic dynamics and a strong environmental anchor.

Recorded through heat, humidity and real-world challenges

Swamps present extreme humidity, oppressive heat and relentless insect pressure, alongside the presence of larger animals. Equipment failures were a regular challenge, including humidity-related shutdowns and fogged optics. Multiple days of continuous recording produced more than 150 hours of raw material. Only the strongest and most stable takes were selected for the final library.

Natural acoustics, no synthetic reinforcement

The recordings are free from heavy processing or noise reduction. Their natural tonal identity has been preserved, offering a clean baseline for EQ, dynamics and spatial work. Because no artefacts have been baked in, the material holds up well when stretched, layered or repitched.

From detailed textures to full environmental beds

SWAMPS includes close-up mud movement and squelch sound textures, as well as wide ambiences covering dawn, night and passing storm conditions. Long-form recordings across varied environments allow layers to combine naturally without looping fatigue or repeated patterns. Each file works as a self-contained environmental bed.

True ORTF 3D spatial accuracy

Consistent ORTF 3D placement ensures stable localisation across the entire library. Matching array spacing and gain structure throughout the sessions allows recordings to intercut cleanly in longer scenes.

Optimised for Atmos and VR

Natural elevation and width cues from vegetation, insects and water movement translate well into Atmos and VR workflows. The recordings sit cleanly in immersive beds without requiring corrective object manipulation.

Consistent environmental movement

Insect beds shift naturally, water textures remain coherent when rotated and alligator movement maintains clear positional identity across surround, Atmos and binaural formats.

Controlled stereo images with natural width

Stereo versions preserve the clarity and articulation of the ORTF recordings, providing a tighter footprint for focused placement. Frog sounds, insect activity and water textures behave predictably without drift or phase instability.