![]() This digital signal can then be recorded, edited, modified, and copied using computers, audio playback machines, and other digital tools. In a digital audio system, an analog electrical signal representing the sound is converted with an analog-to-digital converter (ADC) into a digital signal, typically using pulse-code modulation (PCM). Following significant advances in digital audio technology during the 1970s and 1980s, it gradually replaced analog audio technology in many areas of audio engineering, record production and telecommunications in the 1990s and 2000s Digital audio is also the name for the entire technology of sound recording and reproduction using audio signals that have been encoded in digital form. For example, in CD audio, samples are taken 44,100 times per second, each with 16-bit sample depth. ![]() In digital audio, the sound wave of the audio signal is typically encoded as numerical samples in a continuous sequence. Audio levels display on a digital audio recorder ( Zoom H4n)ĭigital audio is a representation of sound recorded in, or converted into, digital form.
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