IMPACT OF BROADCAST MEDIA Area of Impact: Arts, Entertainment and Leisure
WHAT IS BROADCAST MEDIA?• The term broadcast media refers to a very wide range of different communication methods such as television, radio, newspapers, magazines and any other materials supplied by the media and press.• Its primary target are usually web surfers and people who watch television and listen to the radio on a daily basis.
TYPES OF BROADCAST MEDIA• Speeches• Documentaries• Interviews• Advertisements• Dailynews• Financial markets information• Short video clips• Tutorials• Podcasts
DIGITAL RADIO• Digitalradio works by turning both sound and data into digital signals at transmission, and then decoding them at the other end using digital radio receivers.
DIGITAL RADIO BENEFITS• The result is CD-quality sound music.• Digitalradio receivers have built-in technology that cleans and ﬁlters transmissions, reducing interferences (AM/FM radio quality can be broken from interference caused by signals bouncing off walls, buildings, hills and other structures).• Data now able to be sent as part of the signal, digital radio receivers with LCD screens can also give listeners information such as song names, news, weather and much more, all being adjustable by the user.
DIGITAL RADIO BENEFITS• Digitalradios are also easier to tune. Instead of struggling with a dial to ﬁnd the strongest frequency for a station, listeners are able to choose a station by name from a menu, with the digital radio automatically locking on to that signal at a push of a button.• Digitalradios with hard drives will also allow people to pause live radio transmission or rewind, just like digital set top boxes or DVD recorders with hard drives do for digital television.
DIGITAL TELEVISION• Digital Television (also referred as DTV) is a kind of new broadcasting technology that totally changed our viewing experience of television.• Oldest and commonly used method or receiving DTV is using an antenna to receive the signal.This way is known as Digital Terrestrial Television (DTT). With that use of DTT, viewers are limited to watch whatever channels the antenna picks up. Signal quality will also vary as antennas are sometimes placed in weird places.
DIGITAL TELEVISION• Most people today will pick up digital television via a set-top box, which decodes the digital signals into signals that analog televisions can understand. These types of TVs are known as DTV monitors (HD monitors in the case of HDTV).• However, a slowly growing number of TV sets with integrated receivers are already available, known as iDTVs.
DIGITAL TELEVISION• Other ways to receive DTV include digital cable and digital satellite. Another way is IPTV, that is receiving TV via Internet Protocol with guaranteed quality of service (QoS). Finally, an alternative way is to receive TV signals via the open Internet which is usually referred to as an Internet TV.
DTV QUALITY• Standard Deﬁnition TV (SDTV) - SDTV is the basic level of quality display and resolution for both analog and digital. Transmission of SDTV may be in either the traditional (4:3) or widescreen (16:9) format.
DTV QUALITY• Enhanced Deﬁnition TV (EDTV) - EDTV is a step up from Analog Television. EDTV comes in 480p widescreen (16:9) or traditional (4:3) format and provides better picture quality than SDTV, but not as high as HDTV.
DTV QUALITY• High Deﬁnition TV (HDTV) - HDTV in widescreen format (16:9) provides the highest resolution and picture quality of all digital broadcast formats. Combined with digitally enhanced sound technology, HDTV sets new standards for sound and picture quality in television. Remember that HDTV and digital TV are not the same thing. HDTV is one format of digital TV.
ADVANTAGES OF DIGITAL TELEVISION• Digital channels take up less bandwidth space• Digital broadcasters can provide more digital channels in the same space• Provide High-Deﬁnition digital service• Provide other non-television services such as pay-multimedia services or interactive services
ADVANTAGES OF DIGITAL TELEVISION• Permits special services such as multicasting (more than one program on the same channel) and electronic program guides.• Digital television often has a superior image, improved audio quality, and better reception than analog.
DISADVANTAGES OF DTV• Digital television picture technology is still in its early stages• Images have some picture defects that are not present on analog television or motion picture cinema• Some digital image sequences may have distortion or degradation such as incorrect color, blurred image or haze• Image and voice synchronisation issues
WHAT ARE EBOOKS?• An eBook is an electronic version of a traditional print book that can be read by using a personal computer or by using an eBook reader.• Users can purchase an eBook on CD, but the most popular method of getting an eBook is to purchase a downloadable ﬁle of the eBook (or other reading material) from a Web site (such as Barnes and Noble) to be read from the users computer or reading device. Generally, an eBook can be downloaded in ﬁve minutes or less.
EBOOK READERS• AneBook reader can be a software application for use on a computer, such as Microsofts free Reader application, or a book-sized computer that is used solely as a reading device, such as Nuvomedias Rocket eBook.• AneBook reader hand-held device weighs from about twenty-two ounces to three or four pounds and can store from four thousand to over half a million pages of text and graphics. A popular feature is its back-lit screen (which makes reading in the dark possible).
ADVANTAGES OF EBOOKS• Users can search for the text inside the document• The size is way smaller than a traditional printed book• E-books can be read at low light with the use of back-lit devices• The size and type of font can be adjusted
ADVANTAGES OF EBOOKS• The books are preserved and not damaged over time• Economically viable by reducing the amount of printer ink being used• Can be distributed at low costs almost anywhere• Shared e-books( on the Internet)
ADVANTAGES OF EBOOKS• Can be instantly copied• Can be virtually backed up and kept in a remote safe so they will not get damaged• More freedom while publishing
DISADVANTAGES OF EBOOKS• Can be incompatible with new hardware or software• Youneed to handle the storage carefully in order not to loose or damage the data.• Restricts printing.• Devices are still expensive and can be lost,stolen,and damaged like any electronic device.• Batteries run out quickly and need to be replaced.
DISADVANTAGES OF EBOOKS• Their average price is way higher than a print book.• Many readers prefer paper and print rather than a computer screen or device.• Sometimes unavailable to international users due to legal issues.• Protected e-books cannot be transferred between many platforms.
DISADVANTAGES OF EBOOKS• Screen resolution and contrast is much lower than on paper• Thee-books can be hacked without the approval of the author / publisher• Doesnot work well with extensive illustrations such as in Design , Art , History books.• E-book ﬁles can be easily copied, violating copyrights.Some of the people sell their e-books in Read Only chips which allow the users to only read the book and not edit it.