Players
and Plug-ins
Players
are seperate from browsers. They are stand-alone programs. They work
well with downloads. Winamp (MP3), Quicktime, RealOne Player, Windows,
ITunes, Siren. File extensions: .mov, .ra, .ram, .rm, .avi, .mpg
An
embedded player needs a plug-in. When a video is on a Web page with
other stuff, it must have a plug-in. Windows Media is rated the worst
player, but is used by the most people.
Sound
Higher
quality=higher file size, lower quality=smaller file size.Lower
quality, Radio 22.54Khz to 8Khz. Telephone 11.025Khz. (Sampling rate)Channel:
Stereo=bigger files. Mono=smaller files.Resolution:
8 bit=0 to 256, 16 bit=64,000. A way of measuring the high and low of
the sound wave. Sampling
Rate: How many times per second the voltage goes up and down.Digital
impulses=not continuous, seperate number sequences.
CD quality
sound=44.1Khz. One second is divided into 44.1 sections, each second
is given a number. This is CD quality sound. Most voice files should
be 1/2 of CD sound or lower.
Compression=different
file formats have different compressions. MP3=was converted down from
CD. It was compressed.
RealProducer
Basic (.rm)-compressed (.wav) and changes it to a (.rm).
Windows
Sound Recorder - Using today, simple program in every Windows format
used for editing sound. (Lower quality)