Racetrack Loudspeaker Application

Application of Racetrack Loudspeaker in Slim TV Form Factor

 

A simplified flat TV was modelled to illustrate the low frequency behaviour of the racetrack loudspeaker in a front mounted situation.

 

Model of TV

Close-up of Loudspeaker Recess

 

For simplicity and to isolate the effects of acoustic diffraction around the body of the TV, the loudspeaker was modelled as a simple piston, which as we have seen for this loudspeaker, is only true to ~350Hz after which the cone "breaks-up" into complex structural modes.

 

Simplified Behaviour of the Loudspeaker

 

3D View - Pressure Amplitude as Frequency is Swept from 50Hz to 550Hz

 

Side View - Pressure Amplitude as Frequency is Swept from 50Hz to 550Hz

Top View - Pressure Amplitude as Frequency is Swept from 50Hz to 550Hz