Acoustic and Electroacoustic Simulations

From 3D design reviews up to fully tailored solutions, SELTECH is here to support you and allow you to always be innovative and competitive in the audio and electronics market.

The correct integration of a microphone is a key point for good sound capture in your product. However, we know that as soon as a microphone is “loaded” with an acoustic path, its frequency response (and more particularly its resonance peak) changes, thus being able to alter the audio band of the signal considered (example of speech key frequencies given below).

Relying on Lumped Element (LEM) models, the response of a full microphone system can be properly predicted and adjusted to the application bandwidth.

Modeling
capabilities at system level

Loudspeaker enclosures
Over-the-ear/in-ear modules

Microphone beamforming is now widely used across various industries to enhance audio capture by directing sensitivity towards desired sound sources. Seltech excels in designing and predicting the directivity patterns of linear broadside arrays, differential end-fire arrays, differential circular arrays, and two-dimensional planar arrays, ensuring optimal performance and precision in complex acoustic environments.

linear broadside array

Differential circular array

Differential end-fire array

2D Planar Array

Seltech also utilizes (LEM) models to design and optimize microphone channels in complex devices, effectively reducing unwanted resonances and leakages.

This approach ensures that the audio captured is clear and free from distortion or resonance. Additionally, with the widespread adoption of beamforming techniques across various industries, Seltech excels in creating and predicting the directivity patterns of different array configurations using advanced analytic methods.

Whether you aim to develop broadside, end-fire, rectangular, or circular beamformers, Seltech’s expertise guarantees optimal performance and precision in your designs. By focusing on the specific needs of your application, Seltech ensures that your microphone solutions deliver exceptional audio quality and reliability in even the most challenging acoustic environments.

Microphones solutions

linear broadside array

Differential circular array

Differential end-fire array

2D Planar Array

Modeling
capabilities at transducer level

To further enhance audio performance, Seltech employs modeling at the transducer level, allowing for precise customization of sound signatures, especially when mechanical modifications are not feasible

At Seltech, we use the renowned COMSOL Multiphysics solution for this purpose. This advanced tool provides detailed insights into acoustic and structural behaviors, enabling us to fine-tune every aspect of the sound signature.

By leveraging these capabilities, we ensure that our clients receive speakers that are high-performing and tailor-made to their specific requirements, delivering a truly personalized audio experience.

Finite element simulation showing speaker acceleration in pistonic motion

Finite element simulation showing speaker acceleration in pistonic motion

Do you need an acoustic study for your product ?

ASK FOR A QUOTE HERE

CONTACT US

Headquarters
SAS SELTECH
2, Allée des Cerisiers
F – 94042 Créteil FRANCE

Tel EU : +33 1 48 92 90 02
Tel NA : +1 (919) 481 6896

Solution provider

SELTECH is an international solution provider with deep expertise in acoustics and sensors. We offer innovative solutions to our customers’ challenges, from design to production.

Careers

Navigate

Newsletter

Linkedin Instagram Youtube Twitter