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CIS 270 test
CIS 270 test 9mil...
| Question | Answer |
|---|---|
| Digital media | refers to digital technologies of all kinds that serve & support digital publishing & broadcasting, & digital audio, video, & graphics. |
| Digital media | brings information systems to life with stunning and vivid imagery, powerful sound and music, and realistic, interactive animated 3D environments. |
| Digital medi | also provides the means to digitally publish and broadcast content traditionally distributed through television, newspapers, magazines, and books. |
| Common examples of digital media | * eBooks and publications * MP3 music * DVD movies * Digital photos and artwork * Motion picture special effects * Animated movies and cartoons * Interactive video games * Virtual reality and augmented reality |
| On-demand media | is programming or music that can be viewed or listened to at any time rather than at a time dictated by television and radio schedules. |
| Digital publications | include eBooks, electronic magazines, online newspapers, blogs, and other forms of traditional publishing that have moved online. |
| recent popularity of | eReader devices like the Kindle and slate computers like the iPad, increasing numbers of people are reading digital rather than printed characters. |
| DRM | digital rights management technologies -They are concerned that they may lose control of the distribution of their products, and so they lock them down with |
| An eBook | is book published in a digital format viewed online, or with special software, sometimes on a dedicated reading device |
| features of the Kindle | -ePaper, a display that does not include backlighting like traditional displays -light and compact, similar in size and weight to a paperback book, but much thinner. -Amazon created a vast library of eBooks that could be purchased and downloaded |
| .azw format | (proprietary) can only be viewed on a Kindle |
| .opf format | (Open format) can be read on many different devices and software packages including Apple’s iPad. |
| Online Newspapers and Magazines | include electronic versions of print newspapers and magazines, and online-only publications that serve the purpose of providing news and information in a traditional news format and increasingly through the use of multimedia. |
| Every major newspaper and most minor newspapers | have an online version of their publications |
| 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 phone networks | Digitize speech and send it as bits over cables or through the air. |
| Digitized sound | t can be easily duplicated and transmitted without any degeneration. It has a relatively limitless life span. It is easy to manipulate and process, and can be encrypted for secure communications. |
| Many professionals use digital sound technology in their work | Journalists/lawyers/investigators & other professionals; rely on digital voice recorders to keep their facts straight -Doctors and other professionals use digital voice recorders to record notes for future transcription |
| Scientists have used digital audio | tudy various natural phenomena. For example, the Australian Marine Mammal Research Centre uses digital recordings to study the songs of migrating whales off the coast of Australia. |
| Forensic audio | ses digital processing to de-noise (remove nonessential sounds and audio interference), enhance, edit, and detect sounds to assist in criminal investigations. |
| spectrographic sonogram | provides a visual fingerprint for various sounds in a recording -Gunshots, car engines, and voices all have a unique pattern when viewed as a spectrographic sonogram |
| voice-print identification | he process of identifying a recorded human voice |
| Sampling | is the process of capturing the value of a sound wave at regular intervals, typically thousands of times per second, to store sound and music digitally. |
| natural world, sound | the displacement of air particles caused by vibration and sensed by the eardrum -One way to quantify sound is by measuring the amount of air particle displacement and charting it over time to create a graph, called an analog sound wave |
| analog signal | is a signal that varies continuously over time |
| analog sound wave | ransmitted electrically using varying voltages of electricity as is done over traditional telephone networks, or by using varying radio waves as is done for AM/FM radio |
| analog-to-digital conversion | (ADC) more recent way of quantifying sound is to digitally represent sound waves with numbers |
| digital-to-analog conversion | (DAC) Digitized sound is transformed back into its analog |
| When you digitize, or sample, a sound wave | ou measure and record its amplitude (height) at regular time intervals called the sampling rate. The shorter the time interval, the higher the sampling rate and the more accurate the reproduction of the sound |
| Sampling rate | This is the amount of times per second that a sound wave is sampled |
| Bit depth | This refers to how many bits are used to store the sampled value—typically 8-, 16-, or 20-bit. 16-bit is used for music sampling. The higher the bit depth, the more precise the description of the sound |
| Mono or Stereo | Stereo sampling requires two values for each sample and therefore results in larger files |
| Bit rate | combines the sampling rate, the number of bits used with each sample, and if the music is monaural (mono) or stereo to determine the total number of bits processed per second |
| Digital audio production | refers to methods of capturing, creating, editing, and enhancing digital audio |
| Digital audio production takes place in | multimillion-dollar production studios, in homes and apartments, in all types of businesses, and out on the street. |
| digital voice recorder | refers to a handheld audio recording device designed to capture and digitize sound -typically store more than 100 hours of audio |
| many tools available for creating and manipulating sound | including multitrack recording devices, mixing boards, synthesizers, samplers, drum machines, and sequencers. |
| outboard devices | -large racks of interconnected digital audio devices -process digital music and audio signals |
| Musical Instrument Digital Interface | (MIDI) protocol is a standard language for digital music devices to use in communicating with each other -an connect and control many devices from a single synthesizer keyboard or computer |
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cdt_farrell