Skip navigation

While the digital world is thriving, vinyl LPs continue to be collected along with steady production levels, perhaps due to their warm, natural analog sound quality. So, how can LP achieve such unique sound effects!

In 1877, Thomas Edison was credited with inventing the phonograph, the first device to both record and play back sound.

The device records sound directly when dents on the foil wrap around a grooved roller, which is then played back by rotating the roller, following the needle tip movement along the lines. The groove, vibrates the corresponding mechanical diaphragm and reproduces sound.

By the 1880s, Volta invented a wax-coated cardboard cylinder using the vibration of a phonograph needle, like a seismometer, called the “hill-and-dale” method, like that of Edison.

It was not until the early 20th century that the cylinder was eventually replaced by the flat disc records we use today. But even then, the sound was recorded directly to the disk mechanically.

“Acoustical” records like this rely on a large audio device connected to a gramophone needle. When the sound waves cause vibrations, it will cause the needle to vibrate, and put those vibrations into the hand-cranked disc.

The problem is that the amplitude of the bass notes (bass notes) is many times higher than the notes with the higher tonal range, the sound with the lower pitch takes more physical distance in each segment, then, high and mid tones will be lost during playback. This causes distorted pronunciation as well as heavy bass.

It was not until 1925 that audio inputs were run through a microchip and amp to increase the operating range and volume without depending on the physical properties of the audio equipment, and the era of the “electrical” records have begun.

These recordings are intentionally tuned to the highs and low lows, helping to balance the sound during playback. 78s – discs with a rotating speed of 78 RPM – are considered a technological leap compared to their predecessors.