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Chapter 6 - Chapter 6 Digital Media for Work and Leisure n...

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Succeeding with Technology 4th ed > Digital Media for Work and Leisure > n Digital Music and Audio n Digital Graphics n Digital Photography and Video n Interactive Media Digital Media for Work and Leisure Chapter 6 Please discontinue use of cell phone and turn off the ringer.
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Succeeding with Technology 4th ed > Digital Media for Work and Leisure > Digital Media encompasses digital technologies of all kinds that serve and support digital music, video, and graphics. Digital Media
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Succeeding with Technology 4th ed > Digital Media for Work and Leisure > Digital Music and Audio n Key Terms ¡ Digital Audio ¡ Digital Music ¡ Digital Voice Recorder ¡ MIDI ¡ Podcast ¡ MP3 ¡ DRM ¡ Media Player Software
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Succeeding with Technology 4th ed > Digital Media for Work and Leisure > Digital Audio and Music Digital audio is any type of sound, including voice, music, and sound effects, recorded and stored digitally as a series of 1s and 0s. Digital music   is a subcategory of digital audio that  involves recording and storing music. 
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Succeeding with Technology 4th ed > Digital Media for Work and Leisure > Digitizing Sound n A sound wave is sampled at predefined time intervals (sampling rate). The amplitude for each sample is stored as a binary number. Digital Music File 10010100010010 01000100100100 10110001010101 01010010010010 10010100010010 01000100100100 10110001010101 01010010010010 10010100010010 01000100100100 10110001010101 01010010010010 30 20 10 0 -10 -20 -30 10 20 amplitude Milliseconds (ms) 1. An analog sound wave is… -10 -20 -30 30 20 10 0 10 20 2. “sampled” at regular time slice, and 10 -18 -10 -20 -30 30 20 10 0 30 -10 -28 -4 20 12 -4 -10 0 2 -1 -3 4 2 -10 -18 0 20 3. stored as a sequence of numeric values… (30,-10,-28,-4,20,…) The sampling rate for audio CDs is 44,100 samples per second, whereas the sampling rate of your voice on a digital cell phone is 8000 times per second.
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Succeeding with Technology 4th ed > Digital Media for Work and Leisure > Digital Sound For Professionals n Digital Voice Recorders are used in many professions to capture dialogue for future reference. Used in: ¡ Journalism ¡ Science ¡ Law Enforcement ¡ Entertainment ¡ Communications ¡ Health Care
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Succeeding with Technology 4th ed > Digital Media for Work and Leisure > Digital Sound For Professionals n Forensic audio uses digital processing to denoise (remove nonessential sounds and audio interference), enhance, edit, and detect sounds to assist in criminal investigations.
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Succeeding with Technology 4th ed > Digital Media for Work and Leisure > Digital Music & Sound n Sound production studios use a wide variety of audio hardware and software to record and manipulate music and sound recordings.
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Succeeding with Technology 4th ed > Digital Media for Work and Leisure > MIDI n The  musical instrument  digital interface  ( MIDI protocol provides a  standard language for  digital music devices to  use in communicating  with each other. 
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Succeeding with Technology 4th ed > Digital Media for Work and Leisure > Digital Music Production Tools n A synthesizer electronically produces sounds designed to be similar to the sounds of real instruments; they can also produce new sounds unlike any that a traditional instrument could produce.
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