Various - song and sound, the world around; congo and south-morocco


Digital recording and reproduction converts the analog sound signal picked up by the microphone to a digital form by the process of digitization . This lets the audio data be stored and transmitted by a wider variety of media. Digital recording stores audio as a series of binary numbers (zeros and ones) representing samples of the amplitude of the audio signal at equal time intervals, at a sample rate high enough to convey all sounds capable of being heard . Digital recordings are considered higher quality than analog recordings not necessarily because they have higher fidelity (wider frequency response or dynamic range ), but because the digital format can prevent much loss of quality found in analog recording due to noise and electromagnetic interference in playback and mechanical deterioration or damage to the storage medium . Whereas successive copies of an analog recording tend to degrade in quality, as more noise is added, a digital audio recording can be reproduced endlessly with no degradation in sound quality. A digital audio signal must be reconverted to analog form during playback before it is amplified and connected to a loudspeaker to produce sound.


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