CD-DA (Compact Disc Digital Audio) - Definition
CD-DA is an abbreviation for Compact Disc Digital Audio. It is also known as “Red Book Audio” and is the digital sound format used by audio CDs. Data is encoded by starting with a source sound file, and sampling it to convert it to digital format. CD-DA audio uses a sample rate of 44.1 kHz, which is roughly double the highest frequency audible by humans. Each sample is 16 bits in size, and the sampling is done in stereo. Therefore, each second of sound takes (44,100 * 2 * 2) bytes of data, which is 176,400 bytes.
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