Deck 8: Digital Media

Question 1

Describe six ways to transfer photos from a digital camera to a computer.

Answer 1

Digital camera
A digital camera is an electronic device which is used for creating the digital images of real objects. A digital camera lens focus on the light emitted from the object to the (Charged coupled device) CCD sensor.
CCD has large number of photosites whose numbers is regulated by the size of the CCD. Photosites are used for detecting the color and brightness of each pixel. Digital camera stores there images in memory cards. User can use any size of memory card according to his needs. It is very easy to transfer the digital images to the computer.
Transfer of images from digital camera to computer:
Digital camera provides a feature to delete the picture from the camera which user does not want. There are a lot of ways by which images can be transferred to the computer.
1. Card reader: Card reader is used for reading data which is contained into the memory card. User can connect a card reader to the computer with the help of USB port which are built into the computer system. For the transfer of images from camera to computer, user has to remove the memory card from the camera and has to insert it to the card reader and transfer images to computer.
2. Direct Cable Transfer: If IEEE 1394 port is available in user's computer then a data cable can be used to connect the computer to the camera to transfer photos. A FireWire port or an USB-a port are used for high transfer speed. USB-3 port provides high speed than USB-2 and USB-1 port.
3. Infrared port: An infrared beam is used by some camera that can beam the photos on the infrared port. By using infrared port, there is no need of data cables but it provides a very slow transfer of photos as compared to USB, FireWire ports.
4. Media Transfer: If CD's or optical Medias are used to store the data in camera then user can remove the CD or the other media from the camera and insert it to the computer.
5. Docking station: A docking system provides a simple way for connecting computer to peripherals. Docking system contains slots for cards. For transferring the photos of camera to the computer, the camera should be kept in the docking station.
6. Email: User can also transfer the images as an email attachment when photo is clicked from phone by using the internet connection. It will get stored into the attachment folder.

Question 2

Give examples of time shifting, place shifting, and format shifting.

Answer 2

Time Shifting:
Time shifting is defined as a process of recording the broadcasts so that they can be viewed at a later time. TV programs are mostly time shifting by busy people for the purpose of viewing them later when they have time.
Digital video recorders are used for time shifting which use EPG (electronic program guide) for recording shows on a hard disk.
Examples of time shifting:
1. Recording of TV programs: TV programs can be recorded by peoples so that they can be viewed at a convenient time. DVR are used for recording TV programs which stores these programs on an external storage device.
2. Voice Mail: Voice mail is a program that is used by the user for transferring voice messages to another user over internet. Many cell phones also provide the voice mail facility. Voice mails get stored into the user's mailbox which can be viewed later.
3. Fax: Fax is the process of telephonic transmission of scanned images and text by a telephone which is connected to a printer. The document which the user wants to send is scanned with the help of a fax machine which converts it to a bitmap image. This bitmap is then transferred to the receiver. The receiver fax machine is responsible for converting the bitmap to the original data.
Place shifting:
Place shifting is defined as a process of storing a media on a device that can be accessed by another device.
Example of Place shifting:
1. Viewing the television programs by Wi-Fi equipped set-top box: place shifting is used by Wi-Fi equipped set-top box for the purpose of viewing the broadcast of the television. Wi-Fi Set top box is responsible for accessing the TV shows.
2. Home automation: It is used by the professional who has spent his lot of time in travelling. Place shifting allows them to access the data from their home's computer.
3. Place shifting is also used by people having second home that is vocation cottage on lake or mountain
Format Shifting:
Format shifting is the process of converting the format of media files to another file so that it can also be used on another device. Format shifting is done because sometime there may be a situation when the user wants to run a media file on another device.
Example of format shifting:
1. Extracting music files from the CD's and converting them to mp3 or wav or any supporting format.
2. Extracting Image files from the CD's or another external device and then converting them to jpeg or png pr gif or any other supporting format.

Question 3

The process of converting analog video signals into digital format is referred to as video
.

Answer 3

Process of converting analog video signal
Analog camcorders are used for capturing analog video. Analog videos are stored into the tapes which stores videos in the continuous tracks.
When user wants to transfer the analog video to the computer then the user have to convert the analog video to the digital video by the video capture process.
A video capture process requires capture device to capture video and conversion software to convert it into digital signal.
Therefore, the appropriate word to fill in the blank is capture.

Question 4

You've taken a photo with a high-resolution digital camera and you want to send it as an e-mail attachment. You decide to use
software, such as PKZIP, to reduce the image to a more manageable size.

Question 5

rate refers to the number of times per second that a sound is measured during the recording process.

Question 6

A(n)
is the software that compresses a video stream when a video is stored, and decompresses the file when the video is played.

Question 7

Explain how resolution, image size, color depth, and color palettes can be manipulated to adjust the file size of a bitmap graphic. Summarize how you would prepare bitmap graphics for the following uses: e-mail attachment, Web page, desktop publishing, and printed photo.

Question 8

When sound card circuitry is incorporated into a computer system board, it is often referred to as
audio.

Question 9

Compressed files contain less data per frame and play back more smoothly at lower
rates.

Question 10

Suppose you are designing a logo for a client. You know the design will undergo several revisions, and you understand that the logo will be used at various sizes. You decide it would be best to use drawing software to create the logo as a(n)
graphic.

Question 11

The process of ripping tracks from an audio CD to a digital format such as MP3 is called digital audio
.

Question 12

Digital videos can be converted from one file format to another through a process called
.

Question 13

Recap key points about image compression, explaining the difference between lossy and lossless compression and listing file types with built-in compression.

Question 14

MIDI sound is generated from a(n)
(or patch set), which is a set of prerecorded musical instrument sounds.

Question 15

Before you create a DVD video, it is a good idea to create a DVD
on your computer's hard disk.

Question 16

After you finish arranging video clips and adding a soundtrack, you can select a video file format and a compression technique. For example, you might store the video in WebM container format and use the MPEG
to compress the file.

Question 17

When a telephone-based airline voice response system asks you to say your flight number, it processes your response using speech
software.

Question 18

shifting is the process of converting media files from a format suitable for one device to a format suitable for a different kind of device.

Question 19

Describe differences in the ways that vector and bitmap graphics are created, stored, and used. Explain how the concept of layering relates to your ability to modify a vector graphic.

Question 20

A digital camera captures images on the photosites of a(n)
. (Hint: Use the acronym.)

Question 21

A digital
can be inserted into a music or video file to specify the number of times a content stream can be duplicated.

Question 22

Suppose you are creating an English-as-a-Second- Language Web page and you want to add links to sound files that pronounce English phrases. Would it be better to store the files in WAV or MIDI format?

Question 23

After purchasing a CD of your favorite rock group, you try to rip one of the tracks to your computer and convert it to MP3 format. When you play the file on your computer, you notice loud pops in the audio that indicate that the CD was probably copy
.

Question 24

A characteristic of bitmap graphics is that they are resolution
, so that reducing the resolution also reduces the image quality.

Question 25

HDCP is a(n)
-based DRM technology.

Question 26

Draw a diagram to show how the smooth curve of an analog sound wave is divided into samples and stored digitally.

Question 27

Describe the procedures used to convert bitmap graphics into vector graphics, and to convert vector graphics into bitmaps.

Question 28

Graphics stored in True Color format require
bits for each pixel.

Question 29

is the primary technology used to protect DVDs, but it was cracked soon after it was introduced. (Hint: Use the acronym.)

Question 30

Imagine that you're a musician and you are asked to synthesize some music for the opening screen of a Web site. For this project, you would most likely work with
music.

Question 31

You've downloaded a movie from a new online store. You can watch it on your computer; but when you try to watch it on a large-screen television, you don't get a picture. You know the television is working, so you guess that the movie is protected by
that requires all devices to be compliant.

Question 32

The most popular True Color formats for Web graphics include
and JPEG. (Hint: Use the acronym.)

Question 33

Streaming movies are temporarily held in a(n)
that opens a potential hole for illegal copying.

Question 34

Explain the relationship between sampling rate, audio quality, and file size.

Question 35

Make a series of quick sketches that illustrates the evolution of a 3-D graphic from wireframe to rendered image, and to raytraced image.

Question 36

Unlike
compression,
compression shrinks a file without throwing away any data.

Question 37

Suppose you visit a Web site that allows you to enter sentences, and then it reads the sentences back to you. The site even gives you a choice of a female or male voice. You assume that this site uses speech
technology.

Question 38

Explain how compression affects the file size of a digital video.

Question 39

Vector graphics require more storage space than bitmaps, but vectors can be enlarged without becoming pixelated. True or false?

Question 40

Make a list of ten digital audio applications and indicate whether each one would use WAV or MIDI.

Question 41

Explain how streaming audio and video work, and contrast them with non-streaming technology.

Question 42

A process called
converts vector graphics into bitmap images.

Question 43

You have an old photograph that you want to incorporate in a brochure for your antiques business. To convert the photo into digital format, you use a(n)
.

Question 44

Use your own words to make a list of the steps required to burn video onto a DVD that can be viewed on standalone DVD players.

Question 45

With the decline of browser support for Flash, ___ is a popular format for vector graphics on the Web

Question 46

Use the file manager on your computer to locate five bitmap graphics. List the file name and extension for each one, and where possible identify whether it originated from a digital camera, scanner, or some other source.

Question 47

Make a list of the file extensions that were mentioned in this chapter and group them according to digital media type: bitmap graphic, vector graphic, digital video, digital audio, and MIDI. Circle any formats that are used on the Web and put a star by formats that typically require you to download a player.

Question 48

A 3-D image is based on an assemblage of vectors called a(n)
.

Question 49

Imagine that you are preparing a series of bitmap graphics for a Web site. To decrease the download time for each graphic, you can remove pixels or reduce the color
.

Question 50

Explain how specific DRM technologies are used to prevent consumers from a) making a copy of a music CD, b) ripping tracks from a music CD, c) copying a DVD movie, and d) watching a streaming movie.

Question 51

The technique of adding light and shadows to a 3-D image is called ray
.