What Is An Analog Source and A Digital Source?

- Nov 16, 2018-

Signals that are continuous in time and whose amplitude changes continuously with time are called analog signals (for example, sound waves are analog signals, currents transmitted in audio systems, voltage signals are analog signals), and the source of recording and processing analog signals is analog sound sources, such as magnetic tape, LP/LP player; signals that are discontinuous in time and have only 0 and 1 changes in amplitude are called digital signals. The source for recording and processing digital signals is called digital audio source, such as CD/CD player, DVD-A/ DVD-A player, SACD/SACD player, etc.

The signal recorded and processed by the analog sound source is the original color of the sound (accurately, the electrical signal converted from the sound). It can be directly amplified by a conventional amplifier, which is convenient and straightforward to process; the digital sound source records and processes all 0. The abstract binary data stream formed by combining with 1 arrangement is very unintuitive.

Sound waves are analog and cannot be used directly for digital sources. They must be converted to digital signals by a conversion device to be recorded on a digital audio carrier. During playback, the data read by the digital source device cannot be directly amplified by a conventional amplifier and must be converted to an analog signal. It can be seen that the signal processing of digital audio sources is much more complicated.



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