Discuss the general principles of sound and how it
can be used in multimedia project.
Answers
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Answer:
Sound is a wave motion that carries energy from one point to another through an elastic solid, liquid or gas (air). The waves are produced by a vibrating object producing pressure fluctuations. As those reach the ear, the eardrum vibrates in direct response, and these pressure fluctuations are heard as sound. For the sound to be audible, the wave frequencies must be in the range of 20 to 20,000 Hz (pulses per second). Sound pressure level is measured in decibels (dB).
In addition to potentially causing deafness, noise can also contribute to other health risks. For example, the World Health Organisation states that working in environments with high levels of industrial noise creates a greater risk of cardiovascular disease.
Explanation:
Adding Sounds
Despite the mind-bending concept of adding sound to a page layout, it’s actually very simple to add sounds to an InDesign document. My favorite use for sounds is to add click effects that play when a button is pushed. I also might add short bits of music that play when a document is first opened.
If you know how to place an image into InDesign, you already know how to place a sound in a document.
To add a sound to a document:
Choose File > Place, and then choose the sound file you want to import. The cursor changes into the Sound Clip cursor squ_a.jpg.
416fig01.jpg
squ_a.jpg The Sound Clip cursor indicates the loaded cursor contains a sound clip.
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