Audio and Video Technology Presented by Natalie T

Audio and Video Technology Presented by Natalie T. Carter ETEC 562 Spring 2006

Audio and Visual Technologies What do I need to know? • familiarity with full range of tools • audio and visual tools can be valuable in supporting the teaching and learning process • awareness of types of audio and visual technologies available and their application in teaching and learning

Traditional A/V Technologies • Overhead projector • Slide projector, bulletin boards, posters • Movie projector, VCR • Tape recorder, record player • TV monitor • Books

Digital and Other Emerging Technologies • Document camera, computer display, clip art, photo galleries on CD or the Internet • Computer display, DVD player, computer CDROM, Internet video • CD player, MP 3 player, DVD player, Internet audio • Computer display, Internet webcast • Multimedia CD-ROMs, Ebooks, Internet searches

The Nature of Listening-the ability to hear and comprehend Listening involves several steps: • hearing the auditory stimulus • brain turns stimulus into neural pulses and processes it • cognitive connections made to relate information to memories or real events

Steps for Effective Listening • Hearing-physical process during which audible tones are sent and received • Listening-process that includes both hearing and comprehending the information transmitted • Focused listening while giving full attention to auditory stimulus

Traditional Audio Media • Audiocassettes-most commonly used traditional audio medium is the cassette tape. Cassette tapes are economical, durable, and easy to use. Can record voice, music. Examples include talking book, multimedia kits, & oral journal and history • Broadcast audio-audio received through the radio.

Digital Audio Media • CDs & DVDs hold several advantages over audiotapes such as clarity, storage format, and information access. • Internet audio can be downloaded and can store only what you need. • Internet radio uses the Internet to offer online radio stations with a variety of programming including music, sports, national, local, and world news.

Visual Communication and Learning Visual-what is seen and how it is interpreted by the viewer. There are three main categories of design elements: visual-graphics, symbols, real objects, organizational visuals text-all aspects of textual presentation (font style, colors, sizes, etc). affective-can elicit a response from viewer (pleasure, surprise, humor)

Nonprojected Visuals in Teaching and Learning • Real objects-can be brought into the classroom for preview • Models-3 -D representations that cannot be brought into the classroom • Exhibits-displays created or arranged to show instructional content

• Print materialsteacher, student, or commercial made visuals • Graphics-represent and clarify concepts and relationships • Photographs-capture real-world images and bring them to classroom

Ways to Display Nonprojected Visuals • • • Bulletin boards Flip charts Magnetic boards Felt boards Chalkboards Whiteboards

Ways to Display Projected Visuals • Overhead projectoruses transparencies for visual representation • Digital projectorattached to computer and displays real-time computer images • Document camera-video camera mounted on a stand which projects image of item placed on it

And multimedia is…. • a combination of multiple media combined into a single integrated whole • highly interactive • a way to help each type of learner by appealing to their particular style of learning

Pop Quiz!!!! 1. Name and describe the steps of effective listening. 2. What are three types of projected visuals and how are they used? 3. What are three primary categories of design elements?

I hope you enjoyed and were enlightened…. . THE END!!!!