Simple electronic organ design, electronic organ introductory tutorial

Its principle is: simply put, the key trigger signal is sent to the processor, and then the processor calls the sound library and the timbre is output through the power amplifier circuit or through the digital interface. Buttons on the control panel to select the processor's control over the tone, volume, output, and accompaniment.

Toys and simple old-fashioned electronic keyboards are much simpler, with keys acting as switches to connect to the internal sound generating unit for a fixed frequency sound. Or the sound frequency is handled by a primary microcontroller.

The working principle of electronic keyboards generally has FM (frequency modulation) mode and PCM (sampling) mode.

The common brands of electronic organs commonly used now are Yanmaha and Casio, and musicians in Hainan prefer to use Yamaha products because its settings are more reasonable and it is very used on site.

Convenient; The timbre is more realistic, and the effect is better.

With a single electronic keyboard, you can create the effect of a complete orchestra on the spot. Therefore, in some performance occasions, it is more popular to have a single arrangement of an electronic organ (some will add a synthesizer) (referred to as a single arrangement), or a duo of an electronic organ and a guitar (referred to as a double arrangement). Engaging in single orchestration requires musicians to have a high level of electronic organ operation and performance.

The "Ah Fang Ten-Fingered Piano Demon" in this edition is one such solo master. In YAMAHA's electronic organ series, it is generally necessary for products with PSR 410 or above to reach the level that musicians often say "usable".

Electric oscillators.

Musical instruments that use electrical oscillation as the source of excitation sound are called electro-oscillating instruments.

At present, all kinds of electronic organs, electronic synthesizers, electronic drum machines, etc. that people can see belong to electric oscillation.

Musical instrument. Description: When the player presses a key in the keyboard, the circuit underneath the key transmits the signal.

Give it to the oscillator.

and oscillator 2, producing a corresponding pitch oscillation frequency; The velocity signal of the finger touching the key.

It is also passed to the envelope generator.

and envelope generator 2, and inform the filter and amplifier to produce the phase.

changes in volume and timbre; Finally, the sound signal is output through the amplifier. The low-frequency oscillator in the figure.

The role is to be able to do everything else – oscillators, filters and so on – depending on the player's needs.

Amplifier – modulated so that the synthesizer can produce the effect of vibrato.

At present, MIDI is available in electronic synthesizers produced abroad and in higher-end electronic organs

interface, mutual.

It can be used in series. The most popular way to use it today is to use a computer through MIDI

interface to control.

All relevant electronic instruments and sound effects generators, thus being able to easily produce a rich and colorful sound.

Music acoustics.

AT89C2051 (including crystal oscillator and reset circuit) plus 8 keys and a small horn, and then programming can be realized.

I can help you.

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Introduction to electronic organs

1. Learn the knowledge of music theory, be proficient in the characteristics of rhythm, the correspondence between notes and keyboards, and know the staff.

2. Listen to more famous piano songs or light songs, such as the Symphony of Destiny, the Lap of Huai and Ji, the Desert Sky, etc.

3. Insist on practicing the piano every day, at least play a few etudes of "Hanon" to keep your fingers flexible. It is also necessary to choose some textbooks, such as the John Thompson Easy Piano Tutorial, to maintain a certain level of practice.

5. Continue to learn new and challenging tunes for yourself can often go to the piano **audio-visual and**, self-learning of the electronic piano requires a certain degree of self-control and perseverance, go to the forum of the electronic piano or the forum to go around, ask questions, exchange experience, see more or demonstrate performance, so that the progress will be faster.

When I first started practicing playing the piano, I summarized the following points.

1. Hand exercises.

The most standardized lead Qing in the hand type exercise is the "half grip ball" nature, what we want to practice is to raise the arm to hang the arm in front of the chest, the fingers are slightly separated, the knuckles are naturally bent, the wrist is flat, the metacarpal joint is slightly raised, and the hand is slowly lowered and the fingertips touch the keyboard.

2. Fingering practice.

Correct fingering allows us to make full use of the characteristics of each finger, better exercise the ability of the fingers to play, help us reduce the difficulties in technique, and play regularly, logically and methodically, which greatly improves the efficiency of learning the piano. The basic fingering techniques are: straight fingers, finger piercing, finger crossing, finger expansion, and finger contraction.

3. Pure practice of scales and arpeggios.

At the beginning of the lesson, you can separate the arpeggios and practice slowly, in an octave unit, in strict accordance with the standard hand locust pants grip practice, to experience the sense of position in the finger movement.

May you get help from this!

The introductory tutorial for electronic keyboards is as follows:1. All parts of the hand should be naturally relaxed and not stiff.

2. The upper arm (upper arm) naturally sags, and the lower arm is horizontally with the wrist and the back of the hand.

3. The fingers are naturally slightly bent, and the last section is perpendicular to the keyboard.

4. Use the outside of the thumb to touch the key, and the other fingers use the fingertip to touch the key.

5. The strength of the fingers of playing the electronic piano should be slightly lighter, and it is not appropriate to use the strength of playing the piano to touch the keys. Because the player plays a general electronic keyboard, the amount of touch force does not affect the volume (the more high-end electronic keyboard can also respond to the dynamic, except in this case).

6. It is not correct for the fingers to be too relaxed, or even light and fluttering, because sometimes there is no sound due to the shallow keys and the electronic oscillator circuit is not dialed, and the natural weight of the hand is more appropriate.