Audio media


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Audio media

  2. 2. DefinitionGuidelinesTypesExamples DisadvantagesAdvantagesDemonstrationCharacteristicsHistory andDevelopment
  3. 3. An audio media is a form of mediacommunication that uses audio or voicerecording as a medium in the deliveryof information.These are teaching-learning devicesthat appeal to the auditory sense.Back
  4. 4. History and Development The modern age has blessed us with theability to capture and play back sound.From the phonograph to MP3, wereforever improving audio technology in aquest to make music more accessible. Here is a brief history of audio formatspast, and a peek into how we might listento music in the 21st century.
  5. 5. .Back
  6. 6. Phonographs In the early 19th century, it was allbut impossible to imagine what greatchanges were in store for the world ofaudio. Although the first successfulrecording device was developed in1855, it wasnt until Thomas Edisonsphonograph (invented in 1877) andEmile Berliners Gramophone (patentedin 1887) that the phonograph startedto come into its own.Back
  7. 7. Radio Radio was originally developed formilitary use during World War I, butthe gramophone industry helped spurdemand for recorded music deliveredover the air. When the RadioCorporation of America (RCA) acquiredthe Victor Talking Machine Company in1929, the modern era of the musicindustry was born.Back
  8. 8. 8 - Track Invented in the early 1960s by WilliamPowell Lear, and heavily marketed andused in the 70s, the 8-track was thepremier portable audio format foralmost 15 years. The 8-track wasdesigned around a single reel with thetwo ends of the plastic recording tapejoined with a piece of conductive foiltape to make one continuous loop.Back
  9. 9. Cassette Tapes The cassette as we know it didnt come intothe average home until the late 1970s.However, magnetic tape recording got itsstart in music studios around 1950. Musicianscould record in longer sessions, and seamlesssplice editing allowed artists and producersto select and combine the best cuts intopolished songs. The debut of Sonys Walkman in 1979 wasthe final nail in the 8-tracks coffin;cassette tape sales soared into the 80s.Back
  10. 10. Compact Disc A compact disc (or CD) is an opticaldisc used for storing digital data. Itwas originally invented for digital audioand is also used as a data storagedevice, a CD-ROM. CD-ROM readingdevices are frequently included as acomponent in personal computers.Back
  11. 11. Digital Audio Tapes Introduced in 1987 for the studio market,digital audio tapes quickly became derigueur in professional recording industrycircles. Although DATs never fully caughton in the consumer market because of thehigh cost of DAT players, they remain amainstay of the pro-audio world becauseof their low price and enhanced digitalstorage capabilities.Back
  12. 12. Mini DiscMiniDisc (MD) is a disc-baseddata storage device for storing any kind ofdata, usually audio. The technology wasannounced by Sony in 1991 and introducedJanuary 12, 1992. MD Data, a version forstoring computer data was announced bySony in 1993, but it never gainedsignificant ground, so today MDs are usedprimarily for audio storage. The audiodiscs can be premastered or recordable(blank).Back
  13. 13. MP3 Invented in 1989 in Erlangen, Germany,MP3 has quickly come to symbolize aparadigm shift in the way many peopleaccess their music. The home computerrevolution, along with the Internet, hasallowed millions of Net-connectedmusic fans to take advantage of thelatest audio medium.Next
  14. 14. MP3 Short for Moving Picture Experts Group,Audio Layer III, MP3 is a compressionformat that shrinks digital audio files withnegligible sound-quality degradation. In 1997,the format truly realized its potential,thanks to a man named Tomislav Uzelac, whocreated the AMP MP3 playback engine. Thefirst MP3 player was invented just in timefor the Napster revolution in the form of1998s Winamp -- widely regarded as thefirst free, consumer-ready MP3 player.Back
  15. 15. AAC AAC is a new audio compression technology, AdvancedAudio Coding. This new standard, developed by Dolby,the Fraunhofer Institute, and others, may become themajor ingredient in 21st century digital musicdistribution. The AAC codec was formally introduced to the world atthe Consumer Electronics Show 2001, along with dozensof new digital audio players able to play AAC files.Currently, companies such as Liquid Audio distributeaudio using AAC. Promising smaller file sizes and bettersound quality than the aging MP3 format, AAC alsofeatures built-in copyright protection.Back
  16. 16. RecordingsAudio media has of two kinds.These are:Radio BroadcastBack
  17. 17. Radio BroadcastRadio broadcasting  is a one way wireless  transmission over  radio waves  intended to reach a wide  audience.Stations can be linked in radio networks  to broadcast a common radio format, either in broadcast syndication  or  simulcast  orboth.Next
  18. 18. Radio Broadcast Audio broadcasting also can be donevia  cable radio,local wire television networks,  satellite radio,and  internet radio  viastreaming media  on the  Internet. The signal types can be either analog audio  or  digital audio.Back
  19. 19. Audio Recordings Sound recording and reproduction  isan electrical or mechanical inscriptionand re-creation of  sound  waves, suchas spoken voice, singing, instrumental music, or sound effects. The two main classes of soundrecording technology are analog recording  and  digital recording. Back
  20. 20. Audio recordings includes: tape recorders mp3’s IPods, Radio cassettes, audio CD’s audio conferencing
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  22. 22. Audio Conferencing Audio  conferencing  usually refers tomeetings held by people in differentplaces using devices that allow sounds tobe sent and received. These meetings mayonly involve two parties, but in many cases,there are numerous parties involved. Audio  conferencing  allows multipleparties to connect using devices such asphones or computers.Back
  23. 23. Improve listening skillsEasy to operateSafe way of restoring informationCan be used for small or big groupsBest used to improve speech skillsLessen distraction when used withheadphonesNext
  24. 24.  Useful to add, maintain and stimulate interest Can be used as a set induction strategy Can clarify problems and ambiguity Can aid memory Can be use in stimulating emotions Useful in distant learning Helpful in stimulating creative thinking, increaseimaginationBack
  25. 25. Extended use may bore studentsCostly compared to actual presentations Power failure issues can disturb thelearning environment Strong lesson planning is to be done Trained teachers are needed who canmanage it effectivelyBack
  26. 26.  Preview the materials Prepare an outline of important pointsthat will be presented Motivate the students to listencarefully to some important details End with questions, discussions andother forms of evaluationBack
  27. 27. 1. Clarity of voice2. Relevant to the topic3. Clear pitch of the audio4. Appropriate length5. Appropriate language6. UnbiasedBack