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: -Lossy or Lossless? A lossy audio file type is one that will lose quality when either compressed or converted. As mentioned above, WAV and FLAC files are classified as lossless, thus allowing them to be compressed and converted while experiencing a negligible loss in sound quality.
Detailed explanation-2: -WAV uses PCM (Pulse Code Modulation) to encode the data by slicing it into small chunks to provide the highest quality possible. It’s a lossless file format, meaning that there is no data loss whatsoever.
Detailed explanation-3: -A lossless audio file format is the best format for sound quality. These include FLAC, WAV, or AIFF. These types of files are considered “hi-res” because they are better or equal to CD-quality. The tradeoff is that these files will be very large.
Detailed explanation-4: -Lossless compression formats include FLAC, WavPack, Monkey’s Audio, ALAC (Apple Lossless).