Keyboard sound is usually generated by a computer's speakers or headphones when a key is pressed. The sound is produced electronically and is a result of the software or operating system playing an audio file or generating synthetic sound.
In the case of electronic keyboards or synthesizers designed specifically for music production, sound is produced through electronic means. These instruments have built-in sound generators and amplifiers, and they can produce a variety of sounds, including piano-like tones, organ sounds, and synthesized effects.
Here's a simplified explanation of how a keyboard (specifically an electronic keyboard or synthesizer) produces sound:
1. Key Press: When a key on the keyboard is pressed, it closes an electrical circuit.
2. Signal Processing: The keyboard sends an electrical signal to the sound generator circuit or the computer.
3. Sound Generation: The sound generator circuit (in electronic keyboards) or the computer's sound card processes the electrical signal to create a specific sound waveform.
4. Amplification: The amplified signal is sent to a loudspeaker or headphones.
5. Sound Output: The loudspeaker or headphones convert the amplified electrical signal into audible sound waves, producing the desired sound corresponding to the pressed key.
It's worth noting that the specific sound produced depends on the type of keyboard, the sound generator, the selected sound patch or preset, and any additional effects applied during sound processing.