C 9 menti Flashcards
Which of the following is NOT an analog representation of a sound recording
-Phenograph
-audio cassette
-CD
-Landline Telephone
CD
Digital sampling is the process of converting an analog sound wave into digital values.
True
Which of the following is a sample rate for CD quality, which is a common sample rate for music files?
44,100
Which of the following is not a way that audio codecs achieve sound compression?
-they do not lose any audio data in the process
-they map clips to clips with already recognized patterns
-they filter out sounds beyond the range of human hearing
-they eliminate tracks that are completely masked by other tracks
-they do not lose any audio data in the process
Which of the following activities may constitute music piracy?
-Sending an mp3 music file to a friend
-Borrowing a CD from a friend and ripping it to your music folder
-Playing a song on the radio and recording it using your -computer microphone
-All of the above might be considered Music Piracy
All of the above might be considered Music Piracy
Assuming that there are 256 discernible shades of gray, how many bits would a bitmap require to represent a single pixel in a grayscale image?
8
Color images may be coded using the RBG format, which stands for Robber Bride Groom format.
False
Losless compression formats(e.g. GIF PNG) tend to produce smaller files than lossy formats (e.g. JPEG)
False
Steganography is the practice of concealing a secret message in another message or object (embedding a text message in the pixels of an image).
True
What happens when an analog recording is duplicated many times?
Small errors begin to appear the more it is duplicated.
What happens when digital recordings are duplicated?
They stay the same and the quality doesn’t deteriorate.
