RFQTechnical Article
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Notice For Designing The Loudspeaker of Smart Speaker
Smart speakers have experienced significant growth in the consumer electronic market in recent years. They come with an integrated voice assistant function and perform 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 for receiving sound from users.)
The geometry of the diffuser and the distance between the diffuser and the speaker’s diaphragm will influence how the sounds spread out and radiate in the environment.
Applying COMSOL Multiphysics (a Finite Element Analysis tool) to build a simulation model to predict the Polar Plot of the spreading sound, guided by an optimized diffuser in front of the speaker.
It generated the speaker at the rated power and frequency to see the Sound Pressure Level spread out and radiate in the environment.
Select the surrounding axis and the frequencies to analyze the Polar Plot.
The Polar Plot of another surrounding axis
