Lecture Summaries class 18

Prepared by: Anthony Larrain

These notes serve as an outline to the lecture, they are not intended to be complete. Attend class to get more details.

Project 2 and Quiz 2

Warning Project 2 and Quiz 2 due dates are final. No exceptions, I am serious on this matter.
After the due date DO NOT modify your files and re-upload them.
The server keeps track of the last date the file was modified.
This piece of javascript will tell me when your file was modified.

javascript:alert(document.lastModified)

Type this in the address bar of the current page in your browser
If this date exceeds the due date you will receive no credit.
If you want to keep adding content to your website after the quarter wait until you receive your grade. That is, if there are no disputes and you are in agreement with your grade.
Any attempt to modify the files after the due date can result in a grade of F.
If you modified any of your files for project 1 after the due date, I will discuss this with you individually. You will not be in trouble. Some points may be deducted it depends on the situation. Don't worry about it I will contact you.
It is only for Quiz2 and Project2 will I consider it cheating if files are modified after the due date
Do not modify project 1 until you receive a grade. I should will have them graded by Wednesday.

Music, voice overs, sound effects etc.. can add value to a website
They also can be a major distraction.
Make sure you always give the user the option to play the audio NOT the option to turn it off.

.wav Wave, A Wave file is a CD quality, uncompressed audio file format, created by Microsoft. The standard PC audio file format, also supported by MAC. Large in size will take very long time to load.
.mid MIDI, Musical Instrument Digital Interface. Very small file size, loads quickly. Not actual audio but instructions about a performance. Sound card must be able to play MIDI.
.au Audio File. It is supported by all browsers with sound, and all servers.
.mp3 Standard format for compression of a sound or music on the Internet and home computers.
Many Many More

Inserting an audio file into a web page is as simple as creating a link to the audio file.

Suppose I have an audio file called cielito.mp3 in a sub directory of my HTML file called sound, then the HTML code:

<a href="sound/cielito.mp3"> cielito.mp3</a>

will display this in the browser: cielito.mp3

When the user clicks the link, the audio file will download and start playing.

If you want the player to view first, then use the embed tag

Using this code the user would see:

Note: only the type attribute is required.

To download an audio file off the NET, do the same as you did for images. Right Click --> Save Target AS.

Pay attention to the file type.

From a CD. The processes is called ripping or importing. Desktop Programs like Itunes and Windows Media Player allow you to rip or import from CD to your computer. In class I will give a demo using Itunes. Itunes, gives you the option to import using various file formats.
Record it yourself into your computer. Pretty easy to do these days with a modern computer. Need some software, called a sequencer to capture the audio. A microphone or an instrument is plugged into your sound card or an audio interface. Depending on sound card the signal may need to be boosted before hitting the sound card. If you are interested in this you should consult with me. If the computer in the lab allows for it, I will give a demo.

Sequencing Software

Sequencing software along with plug-ins can be used to optimize and add effects to the audio:

Example

Using the above clip Cielito Lindo, I have shortened the clip added some reverb in the middle and faded out.

Some ideas for adding more content to your final project. Work on final project