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What is video

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Definition of video: Visual multimedia source that combines a sequence of images to form a moving picture. The video transmits a signal to a screen and processes the order in which the screen captures should be shown. ...

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What is video

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(1) Refers to recording, manipulating, and displaying moving images, especially in a format that can be presented on a television.

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Advantages and disadvantages

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What are the advantages and disadvantages of video as an educational medium?

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Answer (1 of 15): Videos must be used as a facet of instruction along with other resource material available to you for teaching a particular topic. As educators, our aim is to get students energized and engaged in the hands-on learning process. Videos are an instructional medium that are compel...

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Advantages and disadvantages of audio media

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Advantage and Disadvantage using Audio in Teaching and Learn

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Slide show

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Slide show

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RATIH WIJAYANTI
1507042024

You can prepare your own audio materials, and so can your students. These recordings can take the form of oral reports, accompaniments to learning center activities, communication skills practice, and the like. By following some basic guidelines you can improve the quality of such recordings.

One of the example of audio media is radio. Radio can help us to get some informations and entertainments. Valerie Geller's bookreminds you why you wanted to listen to the radio when you were growing up. Radio was fun. The air personalities were relevant and kept you entertained. Geller, a radio consultant for news, talk and personality radio stations, originally wrote Creating Powerful Radio as a workshop supplement. She bases her radio philosophy on three simple principles: ''Tell the truth. Make it matter. Never be boring'' (Brenda, 2008).

On a general note, most media have the capacity to diffuse information, to show colour, motion, systematic representation, simultaneous picture and sound. In Gbodi (2004) Davies (1974) noted that, all media to varying degree help in perception, understanding, transfer of training, provision of reinforcement or knowledge of results and retention (Gambari and Adamu, 2008).

Sound is produced by vibrations that set into motion radiating waves of compression and rarefaction propa- gated through a range of media such as gases, liquids, and solids. Hearing occurs when these vibrations are received and processed by the ear and sent to the brain by the auditory nerve. Sound begins when an object vibrates and sets into motion molecules in the air closest to it. These molecules pass on their energy to adjacent molecules, starting a reaction-a sound wave-which is much like the waves that result when a stone is dropped into a pool. The transfer of momentum from one displaced molecule to the next propagates the original vibrations longitudinally from the vibrating object to the hearer. What makes this energy transfer possible is a medium with the property of elasticity-whether gas, liquid, or solid (Alten, 2014 : 6).

The Hearing and Listening Process

Hearing and listening are not the same thing, although they are, of course, interrelated. At the risk of oversimplification, we might say that hearing is a physiological process, whereas listening is a psychological process.

Physiologically, hearing is a process in which sound waves entering the outer ear are transmitted to the eardrum, converted into mechanical vibrations in the middle ear, and changed in the inner ear into electrical impulses that travel to the brain.

The psychological process of listening begins with someone's awareness of and attention to sounds or speech patterns (receiving), proceeds through identification and recognition of specific auditory signals (decoding), and ends in comprehension (destination) (Heinich, 1996 : 176).

Advantages and Disadvantages using Audio Media in Teaching and Learning

1. Classroom audio overcomes ambient noise levels and distributes the teacher's voice at the same amplified level throughout the classroom. Every child hears the teachers at the same level no matter where the child is seated.

2. Reduce a child's sensitivity to distractionsWhen a teacher's voice is amplified 5 to 15 decibels above ambient noise, articulation and speech intelligibility are enhaced.

3. Teachers using classroom audio report less need for repeating of instructions, and fewer reminders are needed (http://www.lightspeed-tek.com/learn/whitepapers/benefits-of-classroom-audio/#sthash.H6mdRkwl.dpuf).

1. Students will not learn how to read as effectively (as they listen instead of practice to read stories, poem, etc.

2. Difficult to teachers to control device(s) use in class (affects classroom management and especially time management).

3. Teachers have to grow eyes in the back of their heads and when mobile devices are used in class, the need for continual monitoring and regulation increases.

4. Inability to know how to extract information from text successfully (https://prezi.com/m/2q2piohefvso/advantage-and disadvantage-using-audio-in-teaching-and- learn/).

The Example of Common Audio Format

The following five examples of audio media. There are some advantages and limitations from those audio media (Heinich, 1996 : 180).

1. Cassette Audiotape
Advantages :

Very portable (small and light)

Durable

Easy to use (no threading)

Can prevent accidental erasing

Requires little storage space

Limitations :

Tape sometimes sticks or tangles

Noise and hiss

Poor fidelity with inexpensive players

Broken tapes not easy to repair

Difficult to edit

2. Micro casettes
Advantages :
Very compact portable
Limitations :

Not compatible with other cassettes

Poor fidelity

3. Phonograph Record (Disc Recording)
Advantages :

Excellent frequency response

Compability of records and phonographs

Selection easily cued

Wide variety of selections

Inexpensive

Limitations :

Impractical to prepare locally

Easily scratched

Can warp

Required much storage space

4. Compact Disc
Advantages :

Very durable

High fidelity

No background noise

Random search

Limitations :

Impractical to prepare locally

Expensive

Initial expense of equipment

5. Audio Card
Advantages :

Sound with visual

Student can record response and compare with original

Designed for individual use

Participation; involvement

Limitations :

Most cards hold

Less than 15 seconds

Time-consuming to prepare

After looking the above examples of common audio format above, there are five kinds of audio media.
You can look at the map below :

CONCLUSION
Audio media has some advantages for teaching-learning process. There are some audio medias which useful, such as : cassettes, micro cassettes, phonograph record, CD's, and audio card. Each of audio media has the advantages and limitations.

The use of audio media are limited only by the imagination of teachers and students. Audio media can be used in all phases of instruction from introduction of a topic to evaluation of student learning.

Alten, Stanley R. 2014. Audio in media Boston : Wadsworth, cengage learning.

Jaskulske, Brenda K. (2008) 'Valerie Geller, Creating Powerful Radio. Burlington, MA: Focal Press, 2007', Journal of Radio & Audio Media, 15:1, 120 - 121.

Gambari, A. I. and Z. E. Adamu. 2008. Impact of Videotape Instructional Package on Achievement
and Retention in Primary Science among Primary Pupils in Niger State, Nigeria.

Journal of Science, Education and Technology.Vol. 1,No.2. ISSN 1596-9770.

Heinich, R., M. Molenda, and J.D. Russell. 1996. Instructional media and technologies for learning 5th ed. New Jersey: Von Hoffman Press,Inc.

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RATIH WIJAYANTI 1507042024 You can prepare your own audio materials, and so can your students. These recordings can take the form of oral reports, accompaniments to learning center activities, communication skills practice, and the like. By following some basic guidelines you can improve the quality of such recordings.

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Audio media

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Generally, students enjoy listening to music so using audio media to capture their attentions and/or to motivate them would be very effective. There are a lot of audio related activities that will...

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What is audio

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Computer dictionary definition for what audio means including related links, information, and terms.

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What is audio

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In the purest sense, Audio could be defined as periodic fluctuations of air pressure or electrical energy at frequencies and amplitudes within the human range of hearing. Audio is, in other words, sound, or electrical energy that represents sound. Sound is a class of kinetic energy called acoustical energy which consists of fluctuating waves of air pressure. In recording or sound reinforcement, audio is also commonly referred to as sound, electrically represented in the form of fluctuating voltage or current. Thus, audio is acoustic, mechanical, or electrical frequencies corresponding to normally audible sound waves.

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Being music makers ourselves, we love geeking out on all things gear. From the tweakiest techniques to the biggest ideas, our experts work hard to constantly supply inSync with a steady stream of helpful, in-depth demos, reviews, how-tos, news, and interviews. With over 28,000 articles and counting, inSync is your FREE resource for breaking news, reviews, demos, interviews, and more.

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In the purest sense, Audio could be defined as periodic fluctuations of air pressure or electrical energy at frequencies and amplitudes within the human range of hearing. Audio is, in other words, sound, or electrical energy that represents sound. Sound is a class of kinetic energy called acoustical energy which consists of fluctuating waves of air pressure.

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Definition of audio

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Audio is sound within the acoustic range available to humans. An audio frequency ( AF) is an electrical alternating current within the 20 to 20,000 hertz (cycles per second) range that can be used to produce acoustic sound. In computers, audio is the sound system that comes with or can be added to a computer. An audio card contains a special built-in processor and memory for processing audio files and sending them to speakers in the computer. An audio file is a record of captured sound that can be played back. Sound is a sequence of naturally analog signals that are converted to digital signals by the audio card, using a microchip called an analog-to-digital converter ( ADC). When sound is played, the digital signals are sent to the speakers where they are converted back to analog signals that generate varied sound.

Audio files are usually compressed for storage or faster transmission. Audio files can be sent in short stand-alone segments - for example, as files in the Wave file format. In order for users to receive sound in real-time for a multimedia effect, listening to music, or in order to take part in an audio or video conference, sound must be delivered as streaming sound. More advanced audio cards support wavetable, or precaptured tables of sound. The most popular audio file format today is MP3 (MPEG-1 Audio Layer-3).

Continue Reading About audio

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What is audio? - Definition from WhatIs.com

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Audio is sound within the acoustic range available to humans. An audio frequency ( AF) is an electrical alternating current within the 20 to 20,000 hertz (cycles per second) range that can be used to produce acoustic sound. In computers, audio is the sound system that comes with or can be added to a computer.