3.5.8+Conversion+Applications

= Applications of Conversion =

More on how to see how Analogue to digital conversion works can be found on pages 3.5.6 (Digital & Analogue Data) and 3.5.7 (Data interconversion)


 * Music, video, and pictures are stored digitally in computers. Analogue data must be converted to digital to store or transmit it (for more information on Binary see 3.5.1 Binary data representation ).
 * For example, sound waves such as music are sent via digital representation, but then converted to analogue in order to be noticed by the human ear. Also, temperature sensing may be read in analogue yet written digital to be shown by the thermometers (if digital)
 * A device that is distantly related to the ADC is the digitally controlled potentiometer, used to control an analog signal digitally.

**Temperature**

 * Temperature reacquires that the readings from the probes of the thermometers is converted from analogue to digital in order to be processed and then displayed. Here an ADC is absolutely necessary.

**Sound**

 * Most audio signals used nowadays are stored as digital information (eg. .mp3 & .ogg) and to hear heard through speakers must be converted into an analogue signal
 * DACs are therefore found in devices such as CD players, iPods, and other electronic devices that process sound
 * Microphones perform the task in the opposite manner by taking the analogue signal and store it discreet in sections that almost make up the wave
 * One of the most common uses for this is in the use of telephones that convert analogue sound into digital data so it can be transferred and then reconvert if from digital to analogue so it can be heard on the other end.



Last Modified by: Daniel Gillo Last Modification: 18th April 2011

Sources


 * "Analog-to-digital Conversion."  18 April 2011.
 * Jones, Richard. __Computer Science Java Enabled__. Victoria: IBID Press, 2004.