4.2 A. In general, what are the benefits of using multimedia elements? What are

Question

4.2

A. In general, what are the benefits of using multimedia elements? What are disadvantages of including multimedia components in a website?

There are many types of elements that are considered multimedia (audio/video/interactive forms/animation). Name and describe at least two elements noting the pros and cons of each.

What is the purpose of each element being explained?

What is the skill level needed to develop each element?

What challenges exist to developers for streaming audio and video on websites? How can those difficulties be avoided or alleviated?

Explanation / Answer

Ans :

Text is one of the multimedia elements used in the website. Normally we can found it from Internet. Human are using text to communicate with other people. From Internet we can use E-mail to send text message to other people, we also can use share status or share anything you want to share to give your friend or family know what is on your mind. We also can share or give information in forum.

There are some examples of Text elements.

Source: http://www.friendster.com (share status)
Source: http://www.hotmail.com (E-mail)

Advantage and Disadvantage of Text :

Text is silent communications. One of example in our real life is text messaging, it can send message to each other without other people being able to hear what is being said. It is privacy to exchange messages with each other without fear of other people knowing what you are talking about.

The advantage of Text is text messaging is the ability to be able to send a message to someone to ask them to call you later regarding something important. At the same time, it doesn't interrupt them with a phone call. It allows them to respond back to you when it is most convenient to them.

The disadvantage of Text is sometimes you don't receive all incoming messages from people. Often a person text messaging box will get so full with incoming and sent text messages. If the inbox gets too full then the person receive anymore messages unless he or she deletes some of them.

Audio :
Audio is one of the multimedia elements. Audio is sound within the acoustic range available to humans. Commonly we can hear many audio from Internet, Radio, MP3, Computer and so more. Now, we can listen music or download music from website, some people were make song and upload to Internet share to everyone, we also can embed favorite music to blog or website. Some of users use voice call to communicate with friend or family.
There are some examples of Audio elements.
Source: https://www.blogger.com (embed to blog)
Source: http://www.skype.com (voice call website)

Advantage and Disadvantage of Audio :

Audio is sound within the acoustic range available to human. One of example in our real life is Audio Conference. It can communicate with other people. We can use mobile phone or use Internet to use the audio conference.

The advantage of Audio is can combine with other media for example video, computer, MP3. When we are using audio conference, it cans potential for large number of lines on call.

The disadvantage is noise can distract participants as well as cut out speaker. Audio is only the sound, it also limited visual stimulation.

Video :

Video is one of the multimedia elements. Video is the technology of electronically capturing, recording, processing, storing and transmitting of images that show scenes in motion. We can find many video from Internet. Some people make a flash video and upload to website to share with others. We also can use video conference to communicate with friend or family. We can watch movie from online or download the movie.

There are some examples of Video elements.
Source: http://www.youtube.com (watch video)
Source: Windows Live Messenger (video conference)

Advantage and Disadvantage of Video :

Video is the technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images representing scenes in motion. One of example in our real life is Video Conference. You can see the people face by video conference.

The advantage of Video is when using video conference, it can see anyone you want to see, no matter what time of day it may be for anyone involved. Time differences between states and countries can be overlooked without anyone traveling long distances for the conference.

The disadvantages are technical difficulties resulting from one or more of the following: software, hardware and network failure. Although advance testing could often identify technical trouble, the unexpected, spontaneous problem sometimes still arose minutes before or even during a videoconference.

Understanding audio and video file formats :

There are plenty of different audio and video file formats. These files may include not just video but also audio and metadata—all in one file. These file types include:

.avi – A blast from the past, the Audio Video Interleave file format was invented by Microsoft. Does not support most modern audio and video codecs in use today.
.flv – Flash video. This used to be the only video file format Flash fully supported. Now it also includes support for .mp4.
.mp4 or .mpv – MPEG4 is based on Apple's QuickTime player and requires that software for playback.

Each of the previously mentioned video file formats require a browser plugin or some sort of standalone software for playback. Next, we'll look at new open-source audio and video file formats that don't require plugins or special software and the browsers that support them.

Google has now partially rejected the H.264 format and is leaning more toward its support of the new WebM video file format instead.

Fun fact: According to Wikipedia, "Theora is named after Theora Jones, Edison Carter's controller on the Max Headroom television program."

Streaming audio and video present new challenges and opportunities. Streaming media is easier to author and deliver to Internet audiences than ever before; digital video editing is commonplace now that the tools -- computers, digital video cameras, and hard drives -- are so affordable; the cost of serving video files across the Internet has also significantly decreased.
The challenges and opportunities presented today are similar to those that existed when the World Wide Web first became popular.

Streaming media can be presented either live, or more commonly, on demand. Each type of streaming media requires different presentation methods to effectively reach Web audiences. On-demand video has offered much more variety, Webcasts have been presented in very straightforward ways, with the developers concentrating on the more complex technical and programmatic aspects of producing and delivering the live video stream.

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