What does analog amplification do?

Analog amplification specifically refers to the process whereby continuous sound waves are increased in amplitude. This means that the original sound waves, which are variations in air pressure representing sound, are captured and then amplified to a greater level without converting them into a digital format. As a result, the output sound remains a continuous waveform, which is characteristic of analog systems.

It's important to note that while analog amplification enhances the loudness of sounds, it does not inherently improve the signal-to-noise ratio or filter frequencies. Those functions typically require additional signal processing techniques, whether in digital or advanced analog systems. Consequently, the primary role of analog amplification is to make the sound wave louder without altering its continuous nature.