Headphones and earphones
Head- and earphone design from the ground – based on years of experience
Getting the sound you want.
A measured headphone response (magenta curve) compared to the target response (blue curve).
IEC 711 coupler
Front leakage with optional acoustic mesh
Driver modelled using TS parameters
Rear leakage with optinal acoustic mesh
Air volume behind driver
Internal air volume inside driver
Air volume in front of driver
Optional acoustic mesh on outlet
Very often both 2D and 3D simulations are used to simulate the influence of leakage holes, front- and rear cavities etc.
COMSOL Multiphysics® is used to optimize linearity of the compliance and break-up modes. Image shows motion analysis performed on a diaphragm for a 50mm receiver.
Drilling holes, modifying front-to-back leakage, changing mesh densities…
The above mentioned simulation tools helps us in giving the customer a very short delivery time for actual having the prototypes in hand for initial listening tests and also laboratory tests for documentation.
Normally “soft Tooling” parts will be made based on these simulation results using 3D printing. Laser Cutting, CNC processing, etc. leading to hand assembled prototypes ready for sharing with our customers for their evaluation.
Using standardized test methods