How does a musical fountain company control the fountain according to different sounds?

 Music FountainIt is a fountain created for entertainment that can move rhythmically. It is designed based on aesthetic research and often produces a 3D effect. In this process, the water flow is controlled, scattering and refracting light, thus forming a 3D image. It changes with the music, adding a stunning visual and auditory feast for the people in the city at night, serving as a romantic and leisurely entertainment service in the fast-paced urban social life. So, how can we control the fountain according to different sounds?

 Music Fountain CompanyIt indicates that it is added to the music control system of the program-controlled fountain. The computer decodes and encodes audio and MIDI signals, and finally outputs the signals to the control system, synchronizing the shape and light changes with the music, thus achieving a perfect combination of water shape changes, light and color changes with the emotions of the music, making the fountain performance more vivid and rich in connotation, reflecting the artistry of water. Music Fountain: Can change according to the level of music. Users can write their favorite music programs in the editing interface. The playback system can achieve the unity of music, water, and lighting atmosphere, playing in sync.

1. Pitch and its extraction methods

Volume, pitch, and timbre reflect three subjective characteristics of sound, which together reflect the human ear's perception of sound, reflecting the tonal hierarchy of the subjective experience of sound. Although spacing size also involves other factors, such as sound pressure, it relies on frequency. Therefore, generally, the higher the frequency, the higher the pitch, while lowering the frequency lowers the pitch.

 Music Fountain CompanyIt indicates that frequency can actually determine pitch, so pitch detection mainly involves detecting the fundamental frequency, which is the study of the pitch cycle. The system uses traditional autocorrelation fundamental frequency detection technology algorithms, which are based on time-domain problem analysis management theory, with advantages such as simplicity and low computational load, and can also improve the direct autocorrelation information function of time-domain signal sampling values.

2. Processing of volume signals

Volume reflects the amplitude of the sound signal, and the amplitude of the sound wave determines the size of the high and low volume. Different music has different signal volumes, so when the volume signal controls the pump operation, there will be significant fluctuations in the water column. However, if you do not process the volume signal, when the amplitude of the sound wave is relatively large, there will be significant changes in the water column; conversely, when the amplitude of the sound wave is very small, there will obviously be no change in the water column.