MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Audio files using lossy compression.
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Audio files using lossless compression.
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Video files using lossy compression.
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Video files using lossless compression.
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Image files using lossy compression
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Detailed explanation-1: -MP3 is a file format for sound files that uses a lossy compression mechanism where data that the software deems to be of little use is discarded. WMA or Windows Media Audio is a file format that is developed by Microsoft that uses the very same principle as MP3 to reduce the file size.
Detailed explanation-2: -MP3 (MPEG-1 Audio Layer III) is the most popular of the lossy formats. MP3 files work on most devices, and the files can be as small as one-tenth the size of lossless files. MP3 is fine for the consumer, since most of the sound it drops is inaudible, but that’s not the case when it comes to bit depth.
Detailed explanation-3: -What is MP3/WMA? MP3/WMA (MPEG Audio Layer III) is a standard format for audio compression technology. By using MP3/WMA a file can be compressed to one-tenth the size of the original. WMA (Windows Media TM Audio) is format for audio compression technology. WMA files can be compressed to a size smaller than MP3 files.