Abstract
With the increasing abundance of material civilization, people’s pursuit of spiritual civilization is also higher and higher. Although tuning is the analysis and processing of sound signal, the string signal is also a kind of sound signal, which follows the basic law of acoustics. In the field of wireless sensor network, this paper introduces the status quo of tuning tools for stringed instruments, analyses the existing problems of tuning tools for mainstream stringed instruments, and puts forward an automatic tuning system based on wireless sensor network. The hardware design of intelligent tuning system based on wireless sensor network includes audio acquisition module, tuning control module driver circuit design and voice broadcast module, and network communication module selection analysis. The software design of intelligent tuning system based on wireless sensor network includes embedded software design and mobile software design. Embedded software design mainly includes system flow design and automatic tuning function design. In this paper, an improved endpoint detection algorithm is used to separate the chord tone from the nonchord tone, and an improved pitch detection algorithm is used to get the accurate pitch frequency of the chord tone signal. The function and performance of the tuning system are tested to verify the reliability of the optimized intelligent tuning system.
Highlights
Wireless sensor network (WSN) is a wireless network composed of a large number of static or mobile sensors in a self-organizing and multihop way to cooperatively perceive, collect, process, and transmit the information of the perceived object in the geographical area covered by the network and send the information to the network owner
In the field of wireless sensor network, this paper introduces the status quo of tuning tools for stringed instruments, analyzes the existing problems of tuning tools for mainstream stringed instruments, and puts forward an automatic tuning system based on wireless sensor network
The hardware design of intelligent tuning system based on wireless sensor network includes audio acquisition module, tuning control module driver circuit design and voice broadcast module, and network communication module selection analysis
Summary
Wireless sensor network (WSN) is a wireless network composed of a large number of static or mobile sensors in a self-organizing and multihop way to cooperatively perceive, collect, process, and transmit the information of the perceived object in the geographical area covered by the network and send the information to the network owner. Sensor nodes have the ability of self-organization, can be configured and managed automatically, and automatically form a multihop wireless network system that forwards monitoring data through topology control mechanism and network protocol [2]. The sink node has relatively strong processing capacity, storage capacity, and communication capacity It is the gateway connecting sensor network and Internet external network. Many musicians will adjust the corresponding pitch; the existing active tuning tuner cannot do this; existing technology is an object with a single individual instrument to carry on the design; only in the case of the orchestra, music is responsible for rendering the music director of music only in advance before the performance will present the request message to the effect of musicians, not appropriate for fine-tuning in the process of performance
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