With the development of science and technology and the integration of products, voice chips have gradually replaced a variety of voice devices applied in various occasions. The main characteristics of voice chip are low power consumption, strong anti-interference ability, less peripheral devices, simple control, long time of voice preservation (some voice chip can save the content of 100 years), power failure does not lose voice, part of the chip can also repeat erasable voice content.
Such as car reversing radar, bus station, bank queuing machine, voice toys, anti-theft systems and other equipment are equipped with voice chips. As there are many kinds of chips with different functions, engineers will be at a loss when choosing voice chips. Therefore, Nine Core electronics provides some reference for the selection of voice chips for engineers who are just involved in the voice industry.
So how to choose recording chip and playback chip? Voice chip can be divided into recording voice chip and playback voice chip. To design a product using voice chips, first of all to consider whether to use the recording of live voice, such as the need to record the voice with recording function of the voice chip, otherwise choose only playback function of the voice control chip.
Normally the voice chip with recording function has the function of playback voice, but when playing voice, the sound quality is not as good as the special sound playback voice chip, so in the choice of voice chip to weigh the function and sound quality and other factors. Security system, meeting minutes system, recording toys and other products are required to have recording function, this type of product development will use recording voice chip.
There are many devices that only use sound playback function, such as therapeutic apparatus, reversing radar, station indicator, alarm and so on. This type of product does not need to record the live voice, but can download the voice processing tool to the voice chip to play.