MULTIMEDIA AND QUALITY OF SERVICE
COMPRESSION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Lossy compression ____ Choose 3
|
|
Permanently removes data from a file
|
|
|
Always leads to a noticeable loss of quality
|
|
|
Aims to remove redundant data
|
|
|
Can return the original file to its original quality
|
|
|
Would be a sensible choice for a music download site.‘
|
Explanation:
Detailed explanation-1: -Lossy compression is typically used when a file can afford to lose some data, and/or if storage space needs to be drastically ‘freed up’. Here, an algorithm scans image files and reduces their size by discarding information considered less important or undetectable to the human eye.
Detailed explanation-2: -MP3. MP3 (MPEG-1 Audio Layer III) is the most popular of the lossy formats. AAC. Advanced Audio Coding or AAC files (also known as MPEG-4 AAC), take up very little space and are good for streaming, especially over mobile devices. Ogg Vorbis. FLAC. ALAC. WAV. AIFF. DSD. More items
There is 1 question to complete.