Free Sample 61 Keys Toddler Digital Electronic Keyboard Musical Instrument for Sale

When using a keyboard instrument, instead of directly hitting the strings of the instrument to produce vibration, the keys are used to produce sound through the mechanical mechanism or electronic components in the instrument. Compared with other musical instrument families, it has incomparable advantages, which is its wide range and the ability to produce multiple musical notes at the same time. Because of this, keyboard instruments, even as solo instruments, also have rich harmony effects and orchestral colors. Therefore, since ancient times, keyboard instruments have attracted the attention and love of composers and music lovers.

The sound principle of the electric piano is to use the keyboard as the on-off switch to form an electric pulse. Once the key is pressed, the internal crystal oscillator starts to work, forming a pulse to generate a certain frequency waveform, and then it is amplified by the frequency divider and sent to the speaker for sound. The whole sound production process depends on a simple frequency division analog circuit, so the keyboard has no force and string feeling, and the sound is relatively mechanical and monotonous.