1. Analog-to-digital conversion (ADC) allows computers to interact with analog signals by sampling and quantizing analog signals from devices like CD players. 2. During recording, an ADC converts an analog audio signal into a digital format by repeatedly measuring and assigning a binary number to the signal's amplitude at set intervals defined by the sample rate. 3. During playback, a digital-to-analog converter (DAC) reconverts the digital numbers back into an analog signal by combining the amplitude information from each sample to rebuild the original wave.

3. 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

7. 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.

9. 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.

10. General layout

11. Notebook &
digital piano amps

13. 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

14. 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”

15. On Soundcloud
https://soundcloud.com/firman-mulyadi/tuhan

16. PDF by:
Firman Bachtiar - Indonesia
Introduction to Music
Production
Loudon Stearns,
Position: Assistant Professor
Department: Contemporary Writing and
Production