Audio frequency division (high school bass division)

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This audio frequency band is divided according to the musical instrument's range and the acoustic person's customary name for the frequency band. The purpose is to hope that the listener can judge the frequency band by the sound field of the instrument. To assess the audio frequency domain segmentation of the sounds played back by your own audio system, you can only borrow some software for testing. No matter the source of your audio system is simulation or digital, you can buy this software on the market. . 20 - 40 Hz extremely low frequency, there are very few instruments that can reach this range, and the sound of this range is non-directional, which is the most difficult range for audio equipment. The 40-80 Hz low frequency is raised by an octave, (it is an octave for every increase or decrease in frequency). The mid-low frequency of 80 - 160 Hz is increased by an octave. This band is the frequency band most likely to generate room standing waves. From 160-1280 Hz, it spans three octaves (320 Hz, 640 Hz, 1280 Hz), which is the most frequent frequency band for all instruments and vocals, and the soul of music. The 1280 - 2560 Hz mid-high frequency is also improved by an octave. Most of the two-way crossover speakers set the crossover point at 2500-3000 Hz, the upward frequency is given to the tweeter (high frequency, very high frequency), and the downward frequency is from another low The unit is responsible for this, which is the majority of the frequency bands below the medium and high frequency. 2560 - 5120 Hz high frequency, so far, the pitch of the "pitch" that almost all instruments can play has been cut off, and the method of distinguishing the high and low frequency bands by means of the performance of the instrument also ends here. What you hear above 5120 Hz is the "overtone" of the instrument. The pitch gives a fixed pitch, while the overtone is the source of the different sounds of the instrument. In this extremely high frequency overtone range, no one can judge the 8000 Hz or 16000 Hz from the pitch of the instrument (unless the pitch is generated by the signal generator, but it has nothing to do with music). However, the frequency above 5120 Hz is the main cause of adjectives such as "sweet sound", "string luster" and "transparency". The so-called "not transparent", "no luster", "thick and sharp", etc. When describing music, it represents "the lack of extreme high frequency." This is why I encourage my friends and friends to add a pair of super tweeters. It is also one of the elements that can't be less or less. Are some of the technical words mentioned in this paragraph that are used to listening to music not indispensable? To remember the digital relationship between scale and frequency, the easiest way is to use the center A sound (ie, the La sound), and the center A sound is 440 Hz. The next octave A is 220 Hz, and down is 110 Hz. Upward is 880 Hz, 1760 and so on. This is also an audio commentator, and it is often easy to point out why a certain instrument is probably playing a few Hz pitch.

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