Field of Application: Human Health & Wellbeing
Applications: Acoustic Neurostimulation, Auditory Entrainment, Physioacoustic Assessment
Current status: TRL6 - Fully functional technical prototype
About:
Spectrum is a closed headphones system with built-in omnidirectional microphones and audio processing functions.
A personalized sound experience is provided by correcting, in real time, the acoustic distortions caused by the listener’s head and body [1], and amplifying sounds from within the body, such as the heartbeat. This new built-in technology enhances the quality of sound experience and is designed to optimize auditory entrainment through the headphones. An effective session using Spectrum takes between 15–40 minutes, depending on the intended effect [2].
In laboratory studies, body-induced distortions were substantial, varied between individuals [1] and were strongly correlated with brain and heart responses to sound [2]. By correcting them, Spectrum is designed to reduce differences between individuals in response to acoustic stimulation, making sound-based interventions more precise and consistent. Clinical research with Spectrum starts with depression, investigating whether it strengthens the brain’s and heart’s response to music and how this relates to interoception.
Session data is processed and reported through an online app, currently in a research version. Spectrum is an investigational device and has not been cleared for any medical use.
Product Specifications:
Model: Spectrum v1.0
System items:
System configuration:
Durability:
Background Studies:
Patents:
P. Oomen, Entrainment System and Method, WO2025/005790 A1, 2025.
P. Oomen, Method for Generating a Reverberation Audio Signal, WO2022/045888 A1, 2022.
P. Oomen, Generating an Audio Signal Associated with a Virtual Sound Source, WO2021/118352 A1, 2021.

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