Notice For Designing The Loudspeaker of Smart Speaker
Smart speakers experiences significant growth in the consumer electronic market in recent years. It comes with an integrated voice assistant function, performs tasks such as obtaining information, playing music, shopping online, ordering food, controlling smart devices, etc.
Most ID designs have a cylinder with a down-firing speaker that tries to radiate and spread sounds evenly in a 360-degree-spatial effect to satisfy single or multiple users who will move around at home. (The array microphones with a proper algorithm are the same concept to receive the sound from users.)
The geometry of the diffuser and the distance between the diffuser and speaker’s diaphragm will influence how are the sounds spread out and radiated in the environment.
Applying COMSOL Multiphysics (Finite Element Analysis tool) to build a simulation model to predict the Polar Plot of the spreading sound which is guided from an optimized diffuser in front of the speaker.
Generating the speaker in rated power the frequency to see the Sound Pressure Level spread out and radiate in the environment.
Selecting the surrounding axis and the frequencies which you would like to analyze the Polar Plot.
The Polar Plot of another surrounding axis