analog to digital conversion

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Post on 15-Jun-2015

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  • 1. Analog-to-digital conversion (ADC) are processes that allow computers interact with analog signals. These conversions take place in e.g. CD/DVD players, etc Digital information is different from the analog counterpart in two important respects: it is sampled and it is quantized

2. Recording 1.The analog signal is transmitted from the input device to an analog-to-digital converter (ADC). 2.The ADC converts this signal by repeatedly measuring the momentary level of the analog (audio) wave and then assigning a binary number with a given quantity of bits (word length) to each measuring point. 3.The frequency at which the ADC measures the level of the analog wave is called the sample rate or sampling rate. 4.A digital audio sample with a given word length represents the audio level at one moment. 5.The longer the word length the more exact is the representation of the original audio wave levelwise. 6.The higher the sampling rate the higher the upper cutoff frequency of the digitized audio signal. 7.The ADC outputs a sequence of samples that make up a continuous stream of 0s and 1s. 8.These numbers are stored onto recording media such as magnetic tape, hard drive, optical drive or solid state memory. 3. Playback 1.The sequence of numbers is transmitted from storage into a digital-to-analog converter (DAC), which converts the numbers back to an analog signal by sticking together the level information stored in each digital sample, thus rebuilding the original analog wave form. 2.This signal is amplified and transmitted to the loudspeakers or video screen. 4. General layout 5. Notebook & digital piano amps 6. Simple Sound Recorder In Windows 8 For this analog to digital recording using sound recorder that already pre install in window 8, it is simple and easy to use 7. Result from the sound recorder will be in WAV Format Common use by publik is MP3 To transfer to MP3 using the free program format factory 8. On Soundcloud https://soundcloud.com/firman-mulyadi/tuhan 9. PDF by: Firman Bachtiar - Indonesia Introduction to Music Production Loudon Stearns, Position: Assistant Professor Department: Contemporary Writing and Production