The possibility that silicon substrate speakers that remove coils and magnets will greatly change the sound industry
Conventional speakers, whether small or large, all use coils and magnets to create sound. Such a method has large variations in volume and phase between speakers, and has been difficult in terms of miniaturization required for mounting in earphones and the like. Attention is focused on 'solid-state speakers' that may change the way these speakers are made.
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Instead of coils and magnets, solid-state speakers use thin-film piezo technology as the sound actuator, the component that turns electrical signals into sound waves. The film used in this technology is applied in layers to silicon in a manner similar to the semiconductor manufacturing process, and becomes the diaphragm of the speaker that moves air to produce sound.
Because there are no coils and the working and diaphragm parts are made of silicon, solid-state speakers can respond instantly to voltage and deliver high-quality sound without the muddying or discoloration of sound due to resonant components. This is a very important technology in today's world of increasingly higher quality audio content, such as digitized lossless audio and spatial audio.
As the field of storage is shifting from HDD to SSD, speakers are also changing to semiconductor manufacturing, and it is currently expected to produce both a sense of closure and a sense of openness with a single substrate of glass or silicon, or to reproduce sound with higher fidelity than existing speaker technology. Semiconductor manufacturing plants are already mass-produced, so it can be said that the hurdles to diversion for speakers are low.
Founded in 2014, Andrea Rusconi Clerici, Chief Technology Officer of USound, said that a speaker based on a technology called '
Products that use MEMS technology in speakers have been shipped only at the time of writing, but xMEMS, one of the companies developing this technology, has provided dozens of speaker prototypes to dozens of companies, of which more than 30 are working on earphones and other products based on this technology.
The Wall Street Journal said, ``This technology may be used in all smartphones, earphones, smart glasses, and various other speaker-equipped terminals.However, even if major companies in the audio industry adopt solid-state speakers, the transition will take years or even decades.Currently, existing speakers are better at producing bass, so products that combine the two technologies may be born.'
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in Hardware, Posted by log1p_kr