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1. DIGITAL TO ANALOG AUDIO CONVERTER HOW IT WORKS HOW TO
2. DIGITAL TO ANALOG AUDIO CONVERTER HOW IT WORKS SERIES

To playback the music, the digital-to-analog converter reverses this process. These groups of binary bits are called samples, and an analog-to-digital converter does this process.

DIGITAL TO ANALOG AUDIO CONVERTER HOW IT WORKS SERIES

It works by creating a sound wave model as a series of ones and zeroes by recording values at specific points along the wave and turning them into binary code. The standard method to do this is called PCM. Just as in analog sound recording, a signal is being picked up by the microphone.

The critical difference is that, in digital, you need to convert those sound waves into a series of 1s and 0s to store them. The development and availability of computer technology was a prerequisite for digital sound. Technology moved forward, and that took us into the digital era. That is where we are at this date in regards to analog recording. Further developments allowed multiple tracks of sound to be recorded on the same tape. This kind of imprint was able to store a much wider frequency range than ever before, and it soon became a standard all over the world. This electric current charges a magnet touching the passing tape, thus charging the particles on the tape. Sound is captured by the microphone and turned into an electrical current. In essence, this technology allows recording with exceptional fidelity. This technology became available to the western world after the war, where it got further developed. Germany has developed a way to record sound on magnetic tape in the 1930s. The last step towards analog recording we sometimes use to this date happened just after World War Two. So, there was still a lot to be desired regarding the entire frequency range of our hearing. Recording allowed capturing, storing and reproducing the sound with more fidelity, but still only 60-6,000 Hz range. Turntables and vinyl records we use today are the products of this era. Significant leaps in electrics and electronics made it possible to capture, filter and amplify sound electronically before using a mechanical process to engrave the sound on to the master record. The device wouldn’t record Anything above and below that, and sound would be lost.įurther developments in science and technology lead to the Electrical era (1925-1945). Most devices couldn’t record more than 250-2,500 Hz range. But this was somewhat a tricky business, and it recorded a quite limited frequency range. This medium was usually a wax-covered cylinder. This needle would then leave the imprints of those vibrations on a soft, rotating surface of the recording medium. That diaphragm would then vibrate and transfer those vibrations to the articulated scriber, stylus or needle. During this period, the sound was being channelled by a large cone towards the diaphragm at the narrow end. This period is also known as the Acoustic era, and it lasted between 1977 -1925. The first method of sound recording was purely mechanical. There were three major technology leaps regarding analog sound recording. But, more on that subject later in the article. In any case, digital recording needs to be converted back to analog to be produced. “Digital” refers to the way sound is being stored and distributed. Keep in mind that there is no fully digital sound. His Phonograph, invented in 1877, pawed the way for further development and mass production of sound recording and reproducing equipment. One of the most distinguished pioneers in this area is world known scientist, industrialist and entrepreneur, Thomas Edison. It all began in the 19th century and the Industrial era.

DIGITAL TO ANALOG AUDIO CONVERTER HOW IT WORKS HOW TO

Most humans can hear the sound frequencies between 20 Hz and 20 000 Hz, or 20 kHz.įiguring out the sound’s nature was a first, necessary step towards finding out how to record, store and reproduce it. And every wave is defined by the frequency and amplitude. If something is vibrating, it means creating the waves, in this case, the sound waves. The sound is the vibration of the medium, in most cases the air, being picked up and interpreted by our hearing. Critical differences between analog and digital sound.