DigitaltoAudio-BackApplications2

DigitaltoAudio-BackApplications2 - How Do We Fit All That...

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Unformatted text preview: How Do We Fit All That Music Into an iPOD? Its called digital electronics The sound wave is converted into a digital signal that looks like: 0110110010101110 Thats a sixteen bit word to describe the sound wave at one point in time One samples the sound often enough to recreate the music when it is played back later Analog versus Digital Analog Continuous signal that mimics shape of acoustic sound pressure wave Digital Stream of discrete numbers that represent instantaneous amplitudes of analog signal, measured at equally spaced points in time. Analog to Digital Recording Chain ADC Continuously varying electrical energy is an analog of the sound pressure wave. Microphone converts acoustic to electrical energy. Its a transducer . ADC (Analog to Digital Converter) converts analog to digital electrical signal. Digital signal transmits binary numbers: 1001110101101 DAC (Digital to Analog Converter) converts digital signal in computer to analog for your headphones. Analog to Digital Conversion Instantaneous amplitudes of continuous analog signal, measured at equally spaced points in time....
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This note was uploaded on 05/04/2008 for the course PHYS 300 taught by Professor Dejong during the Fall '06 term at Illinois Tech.

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DigitaltoAudio-BackApplications2 - How Do We Fit All That...

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