Audio media

AUDIO MEDIA

Definition

Guidelines

Types

Examples DisadvantagesAdvantages

Demonstration Characteristics

History and Development

An audio media is a form of media communication that uses audio or voice recording as a medium in the delivery of information.

These are teaching-learning devices that appeal to the auditory sense.

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History and Development

The modern age has blessed us with the ability to capture and play back sound. From the phonograph to MP3, we're forever improving audio technology in a quest to make music more accessible.

Here is a brief history of audio formats past, and a peek into how we might listen to music in the 21st century.

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Phonographs In the early 19th century, it was all but

impossible to imagine what great changes were in store for the world of audio. Although the first successful recording device was developed in 1855, it wasn't until Thomas Edison's phonograph (invented in 1877) and Emile Berliner's Gramophone (patented in 1887) that the phonograph started to come into its own.

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Radio

Radio was originally developed for military use during World War I, but the gramophone industry helped spur demand for recorded music delivered over the air. When the Radio Corporation of America (RCA) acquired the Victor Talking Machine Company in 1929, the modern era of the music industry was born.

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8 - Track Invented in the early 1960s by

William Powell Lear, and heavily marketed and used in the '70s, the 8-track was the premier portable audio format for almost 15 years. The 8-track was designed around a single reel with the two ends of the plastic recording tape joined with a piece of conductive foil tape to make one continuous loop.

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Cassette Tapes The cassette as we know it didn't come

into the average home until the late 1970s. However, magnetic tape recording got its start in music studios around 1950. Musicians could record in longer sessions, and seamless splice editing allowed artists and producers to select and combine the best cuts into polished songs.

The debut of Sony's Walkman in 1979 was the final nail in the 8-track's coffin; cassette tape sales soared into the '80s.

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Compact Disc

A compact disc (or CD) is an optical disc used for storing digital data. It was originally invented for digital audio and is also used as a data storage device, a CD-ROM. CD-ROM reading devices are frequently included as a component in personal computers.

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Digital Audio Tapes Introduced in 1987 for the studio

market, digital audio tapes quickly became de rigueur in professional recording industry circles. Although DATs never fully caught on in the consumer market because of the high cost of DAT players, they remain a mainstay of the pro-audio world because of their low price and enhanced digital storage capabilities.

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Mini DiscMiniDisc (MD) is a disc-based

data storage device for storing any kind of data, usually audio. The technology was announced by Sony in 1991 and introduced January 12, 1992. MD Data, a version for storing computer data was announced by Sony in 1993, but it never gained significant ground, so today MDs are used primarily for audio storage. The audio discs can be premastered or recordable (blank).

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MP3

Invented in 1989 in Erlangen, Germany, MP3 has quickly come to symbolize a paradigm shift in the way many people access their music. The home computer revolution, along with the Internet, has allowed millions of Net-connected music fans to take advantage of the latest audio medium.

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MP3

Short for Moving Picture Experts Group, Audio Layer III, MP3 is a compression format that shrinks digital audio files with negligible sound-quality degradation. In 1997, the format truly realized its potential, thanks to a man named Tomislav Uzelac, who created the AMP MP3 playback engine. The first MP3 player was invented just in time for the Napster revolution in the form of 1998's Winamp -- widely regarded as the first free, consumer-ready MP3 player.

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AAC

AAC is a new audio compression technology, Advanced Audio Coding. This new standard, developed by Dolby, the Fraunhofer Institute, and others, may become the major ingredient in 21st century digital music distribution.

The AAC codec was formally introduced to the world at the Consumer Electronics Show 2001, along with dozens of new digital audio players able to play AAC files. Currently, companies such as Liquid Audio distribute audio using AAC. Promising smaller file sizes and better sound quality than the aging MP3 format, AAC also features built-in copyright protection.

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Recordings

Audio media has of two kinds.

These are:

Radio Broadcast

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Radio Broadcast

Radio 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  or both.

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Radio Broadcast

Audio broadcasting also can be done via  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.

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Audio Recordings Sound recording and

reproduction  is an electrical or mechanical inscription and re-creation of  sound  waves, such as spoken voice, singing,  instrumental music, or sound effects.

The two main classes of sound recording technology are  analog recording  and  digital recording. 

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Audio recordings includes: tape recorders mp3’s IPods, Radio cassettes, audio CD’s audio conferencing

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Audio Conferencing Audio  conferencing  usually refers to

meetings held by people in different places using devices that allow sounds to be sent and received. These meetings may only involve two parties, but in many cases, there are numerous parties involved.

Audio  conferencing  allows multiple parties to connect using devices such as phones or computers.

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Improve listening skillsEasy to operateSafe way of restoring informationCan be used for small or big groupsBest used to improve speech skillsLessen distraction when used with

headphones

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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, increase imagination

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Extended use may bore students

Costly compared to actual presentations

Power failure issues can disturb the learning environment

Strong lesson planning is to be done

Trained teachers are needed who can manage it effectively

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Preview the materials

Prepare an outline of important points that will be presented

Motivate the students to listen carefully to some important details

End with questions, discussions and other forms of evaluation

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1. Clarity of voice

2. Relevant to the topic

3. Clear pitch of the audio

4. Appropriate length

5. Appropriate language

6. Unbiased

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