Sound and SightAudio and Image Editing Basics

C. Candace ChouUniversity of St. Thomas

Sound Formats and Applications

• RealPlayer: .rm, .ram• QuickTime: .mov• MP3 player: .mp3• .Macintosh audio format: .aiff or .aif, .• Windows audio format: .wav• Web: .au, wav, aiff or aif• Audio compression settings:

• Web: IMA 4:1; Rate: 22.050 KHZ; Size: 16 bits• CD: Rate: 44.1 KHz; Size: 16 bits; Stereo

Sound Editing SoftwareMacintosh

Sound Edit 16 http://www.macromedia.com/software/sound/

Sound Studio http://www.felttip.com/products/soundstudio/

Windows

CoolEdit, http://www.syntrillium.com/

SoundForge Studio (http://www.sonicfoundry.com/Products/showproduct.asp?PID=718)

Free/Shareware: http://www.freeware.com

Free Audio Download

• Sound Effects: • http://www.apple.com/imovie/

• Music downloads • http://www.mp3.com • http://www.bakerymusic.com• http://www.free-music.com

• iMovie takes both MP3 and AIFF files

Image Formats & Uses

JPEG (Joint Photographic Experts Group)

Web-based documents for photographic images or images that have noncontinuous colors - that have a variety of shades or gradations.

Allows millions of colors

Image Formats & Uses

GIF (Graphic Interchange Format)

Web-based documents for images that have a continuous or flat color

UP to 256 colors

Transparent background

Animated GIF

JPEG & GIF ComparisonJPEG (Left): retains colors better

GIF (Middle & Right): lost colors in pictures, support line drawing, simple cartoons.

File Format and UsesBitmap (.bmp): Electronic presentations, e.g., Microsoft PowerPoint or Microsoft Word, commonly used for Windows

TIFF (Tagged-Image File Format): Print documents, scanned images, when high quality and precision is required; tiff files can be changed for either larger or smaller files without losing precision.

EPS (Encapsulated PostScript): Print publication and illustrations

PICT: A generic file format for Macintosh

Web Images

JPEG or GIF file format

Change the resolution to 72 dpi to save image size

Download a web image by control-click (Macintosh) or right-mouse click (Windows) to save image to disk

• Clip Arts:• http://school.discovery.com/clipart/

Graphic Editing Software

Photoshop Elements 2

Photoshop

Macromedia Fireworks

AppleWorks6

GraphicConverter

Try http://www.freeware.com for shareware and freeware

Dimensions of an iMovie Graphic•Set size to 640 x 480 pixels

•Black borders appear for smaller pictures

Reference

Wirtze. J. GIF vs. JPEG, http://hotwired.lycos.com/webmonkey/geektalk/97/30/index3a.html?tw=design

Lohr, Linda (2003). Creating Graphics for Learning and Performance: Lesson in Visual Literacy. Pearson Education, Inc.