The so-called chords: The number of chords on the mobile phone is equal to the number of audio tracks in the midi format, but each audio track on the mobile phone is a single-note audio track. This is the largest midi track we often listen to on the computer. The difference is also the reason why the number of chords affects the ringtone effect.

Chords are three or more sounds that are pronounced simultaneously or successively according to a certain interval relationship, and are called "chords". Traditional harmony uses thirds as the principle of chord formation. Usually pronounced simultaneously. When you press 1, 3, and 5 on the piano at the same time, the sound produced is a major triad with 1 as the root note. The advantage of chords is that the sound is rich, beautiful and expressive. Major triads sound very loud, while minor triads sound soft and sweet.

The so-called electronic music midi format is to record the timbre, sound name, loudness, angle, time, etc. of each sound, and query the sound library according to the record to obtain the corresponding sound. Simply put, each track corresponds to an instrument, and the sound played by the instrument at each moment is recorded in a specific format. For example, at a certain moment, the track defined as piano records the above-mentioned 135 chords, then the chip queries the sound library to obtain the corresponding sound effects, and then synthesizes and plays them. Therefore, the sound library is a key factor in whether midi sounds pleasant. A good sound library takes up a lot of space.

The method of recording music in mobile phones is the same as or similar to midi. All recorded are single notes, and complex chord sound effects are not recorded. In this case, why do our mobile phones still sound so beautiful? Since you can't press "135" on one piano at the same time, then you can press 1, 3, and 5 on three pianos at the same time. In fact, this is how mobile phone chords are implemented. Although such chords are not as good as real ones, The chords sound nice, but when played from a mobile phone, they sound almost unreal. This process of turning the chords on one instrument into single notes on n instruments seems to be called "chord decomposition". If you often use psmplay to convert mobile phone ringtones, then when the converted midi is relatively complex, it will prompt "The number of decomposed chords exceeds 16..." In the same way, many songs that sound good on the computer can be directly converted without decomposition. When transferred to a mobile phone, the effect is much worse. As long as you use a better midi editing software, you can find that there are often many tracks with the same timbre in a song, and each track is a single tone.

So, a 16 "chord" mobile phone can allow 5 instruments to produce triads at the same time, while a 40 "chord" mobile phone can allow 5 instruments to produce 7th chords at the same time, or 13 instruments to produce 7th chords at the same time. The greater the number of triads, or "chords", the more possible combinations and the richer the tone. This is the difference in sound effects caused by the number of "chords" on the mobile phone. At present, the ringtones of mobile phones sold in the domestic market can be roughly divided into monosyllable ringtones, 3-chord ringtones, 4-chord ringtones, 16-chord ringtones, 32-chord ringtones, 40-chord ringtones, and 64-chord ringtones. There is a big difference between the sound of single tone and chord tone; the sound of 4 chord ringtones and 16 chords are too simple, and the difference is relatively big. The difference between the ringtones of 40 chords and 32 chords is not big, while the difference between the ringtones of 64 chords and 40 chords is very big. Big. In short, 3 chords and 4 chords are on the same level, 16 chords are on the same level, 32 chords and 40 chords are on the same level, and 64 chords are on the same level.

We ordinary consumers have no way of distinguishing chords, because our ears have not been professionally trained. If each of us can hear how many chords there are in the song at once, With a few chords, everyone can be a musician. Chords only play a role in embellishment of the music. It does not mean that the more chords there are, the more beautiful the music will be.