Digitising Sound 01 - Q & A

1. What is meant by the term Analogue sound?

Analogue is a variable signal continuous in both time and amplitude
in contrast with digital, which breaks everything into numbers. For instance, telephones turn voice vibrations into electrical vibrations of the same shape.

2. At its simplest form sound is ------------Vibration, Amplitude (choose one)

Vibration

3. Describe the concept of streaming sound?

Streaming sound is sound that is played as it arrives. The alternative is a sound recording (such as a WAV file) that doesn't start playing until the entire file has arrived. Support for streaming sound may require a plug-in player or come with the browser. Leading providers of streaming sound include Progressive Networks' RealAudio and Macromedia's Shockwave for Director (which includes an animation player as well)

4. What is meant by the term Foley?

Machine used to generate sound effects for movies, the effects nowadays usually prerecorded or electronically synthesized but originally created using mechanical noise making devices such as springs, flapping cards, beaters on wood blocks and cloth, etc. Named after Jack Donovan Foley (1891-1967) who pioneered the art of adding sound effects to movie soundtracks.

5. What are event sounds in Flash?

Event sounds must download completely before they start playing and they will continue playing until explicitly stopped (usually by a stop action). Event sounds are associated with an event such as a mouse click, and are independent of the Timeline.


6. What is meant by AIFF?

Audio interchange file format. A common Macintosh audio file format. It can be mono or stereo, at sampling rates up to 48kHz. AIFF files are QuickTime compatible. The format was co-developed by Apple Computer based on Electronic Arts Interchange File Format (IFF) and is most commonly used on Apple Macintosh computer systems