Digital Camcorder and Digital Camcorder and VideoVideo

Computer Computer MultimediaMultimedia

Two most important factors that Two most important factors that make up a videomake up a video

Frames per second ( fps )Frames per second ( fps )

The resolution ( # of pixels ) of each The resolution ( # of pixels ) of each frame in the videoframe in the video

Video FormatsVideo FormatsMpeg or mpgMpeg or mpg– MPEG (pronounced M-peg), which stands for MPEG (pronounced M-peg), which stands for

Moving Picture Experts Group, is the name of Moving Picture Experts Group, is the name of family of standards used for coding audio-family of standards used for coding audio-visual information (e.g., movies, video, music) visual information (e.g., movies, video, music) in a digital in a digital compressedcompressed format. format.

– The major advantage of MPEG compared to The major advantage of MPEG compared to other video and audio coding formats is that other video and audio coding formats is that MPEG files are much smaller for the same MPEG files are much smaller for the same quality. This is because MPEG uses very quality. This is because MPEG uses very sophisticated compression techniques.sophisticated compression techniques.

– http://www.webopedia.com/TERM/M/MPEG.html

Video Formats (cont.)Video Formats (cont.)WMVWMV– Windows Media VideoWindows Media Video

AVIAVI– AVI stands for Audio Video Interleave AVI stands for Audio Video Interleave – AVI is the most common format for audio/video data on the PC AVI is the most common format for audio/video data on the PC

MOVMOV– Commonly used by MacintoshCommonly used by Macintosh– Uses Quicktime to play videoUses Quicktime to play video

RMRM– Real MediaReal Media– Requires Real PlayerRequires Real Player

Motion-JPEGMotion-JPEG – JPEG stands for the stands for the JJoint oint PPhotographic hotographic EExperts xperts GGrouproup s standardtandard, a , a standard for for

storing and compressing digital storing and compressing digital imagesimages. Motion-JPEG extends this standard by . Motion-JPEG extends this standard by supporting videos. In motion-JPEG, each frame in the supporting videos. In motion-JPEG, each frame in the videovideo is stored with the is stored with the JPEG format.JPEG format.

More about Video FormatsMore about Video Formats

Some applications can convert one Some applications can convert one video format to another.video format to another.

http://www.artech365.com/http://www.artech365.com/

Windows Movie Maker can Windows Movie Maker can support avi, mpeg, wmv filessupport avi, mpeg, wmv files

Storage AmountsStorage Amounts

A half hour of video footage might A half hour of video footage might consume 10 gigabytes of space. consume 10 gigabytes of space.

Digital CamcorderDigital CamcorderA digital camcorder takes digital A digital camcorder takes digital video and digital still images video and digital still images

We have two camcorders - Canon We have two camcorders - Canon ZR70 and ZR30 Digital Video ZR70 and ZR30 Digital Video CamcorderCamcorder

App. Cost: $400App. Cost: $400

StorageStorageTo store video the Canon uses a mini-To store video the Canon uses a mini-DV (Digital Video) cassetteDV (Digital Video) cassette– It can store 80 min of normal videoIt can store 80 min of normal video

To store digital images the Canon uses To store digital images the Canon uses a 8mb Multimedia Carda 8mb Multimedia Card

The Sony HandyCam camcorders we The Sony HandyCam camcorders we will use have an internal hard disk for will use have an internal hard disk for storage.storage.

Digital VideoDigital VideoThe Sony Camcorder uses a motion jpeg The Sony Camcorder uses a motion jpeg video formatvideo format

Video taken with the digital camera is Video taken with the digital camera is mpeg video formatmpeg video format

15 frames per second (fps)15 frames per second (fps)

320 x 240 pixels ( 10 seconds )320 x 240 pixels ( 10 seconds )

160 x 120 pixels ( 30 seconds )160 x 120 pixels ( 30 seconds )

Digital ImagesDigital Images

It stores images using the jpeg It stores images using the jpeg formatformat

The default is 1,024 x 768 pixelsThe default is 1,024 x 768 pixels– 640 x 480 is also available640 x 480 is also available

There are three still image qualitiesThere are three still image qualities– Superfine ( 440 kb, 14 per 8mb card )Superfine ( 440 kb, 14 per 8mb card )– Fine ( 300 kb, 20 per 8mb card )Fine ( 300 kb, 20 per 8mb card )– Normal ( 160 kb, 39 per 8mb card )Normal ( 160 kb, 39 per 8mb card )

Other FeaturesOther Features

A external microphone can be used A external microphone can be used with the camcorderwith the camcorder

Uses a lithium ion batteryUses a lithium ion battery– Typical recording time Typical recording time

55 min using viewfinder55 min using viewfinder

40 min using LCD40 min using LCD

22X Optical Zoom22X Optical Zoom

440X Digital Zoom440X Digital Zoom

Capturing VideoCapturing VideoTo capture video you need the To capture video you need the following.following.– Capture Software – Windows Movie Capture Software – Windows Movie

Maker ( Comes with XP )Maker ( Comes with XP )– Digital CamcorderDigital Camcorder– Video Capture CardVideo Capture Card– Firewire cableFirewire cable

However, while USB is limited to 12 However, while USB is limited to 12 megabits per second, IEEE-1394 currently megabits per second, IEEE-1394 currently handles 50-400 megabits per second. handles 50-400 megabits per second.