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Option: Multimedia Systems

Quick questions on Characteristics of multimedia systems in HSC Information Processes and Technology

2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is audio?
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Audio is captured by sampling: measuring the sound wave's amplitude many thousands of times per second and storing each measurement as a number. The sample rate (samples per second) and the sample size (bits per sample) determine quality and file size. Higher rates and sizes capture more detail but produce larger files, the trade-off that compression later addresses.
What is interactivity?
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Interactivity is what makes a multimedia system more than a collection of media. Through hyperlinks, buttons, menus and other navigation controls, the user chooses their own path through the content rather than receiving it in a fixed order. This non-linear, user-directed structure is the defining characteristic of multimedia and shapes how it is designed and authored.

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