1. When music is recorded on a CD-Audio, a digital recording device samples the
ID: 3570377 • Letter: 1
Question
1. When music is recorded on a CD-Audio, a digital recording device samples the sound 44,100 times per second. Each sample is 2 bytes (16 bits) long, and a separate sample is taken for each of the two speakers in a stereo system. Therefore each second of sound on the CD requires _________________bytes of memory
Question 1 options:
1,411,200
88,200
576
none of the above
2. When music is recorded on a DVD-Audio, a digital recording device samples the sound 96,000 times per second. Each sample is 3 bytes (24 bits) long, and a separate sample is taken for each of the two speakers in a stereo system. Therefore five (5) minutes of sound on the CD requires (aproximately)_________________MB (megabytes) of memory
Question 2 options:
138.24
164.79
172.8
none of the abov
3. An analog signal has frequency components between to 75,000 Hz and 125,000 Hz, what would be the minimum sampling rate to guarantee integrity of the coded information ? Give the result in samples per second.
4.
Using the ASCII chart, what is the binary code that represents the character string
1. When music is recorded on a CD-Audio, a digital recording device samples the sound 44,100 times per second. Each sample is 2 bytes (16 bits) long, and a separate sample is taken for each of the two speakers in a stereo system. Therefore each second of sound on the CD requires _________________bytes of memory
1. When music is recorded on a CD-Audio, a digital recording device samples the sound 44,100 times per second. Each sample is 2 bytes (16 bits) long, and a separate sample is taken for each of the two speakers in a stereo system. Therefore each second of sound on the CD requires _________________bytes of memory Question 1 options: None of the above 2. When music is recorded on a DVD-Audio, a digital recording device samples the sound 96,000 times per second. Each sample is 3 bytes (24 bits) long, and a separate sample is taken for each of the two speakers in a stereo system. Therefore five (5) minutes of sound on the CD requires (aproximately)_________________MB (megabytes) of memory Question 2 options: None of the above 3. An analog signal has frequency components between to 75,000 Hz and 125,000 Hz, what would be the minimum sampling rate to guarantee integrity of the coded information ? Give the result in samples per second. 4. Using the ASCII chart, what is the binary code that represents the character string a??DSC''? Question 4 options: None of the above 5. The following number 5328.63 is expresed in a unknown base. Which of the following cannot be the radix used to represent the given number? Question 5 options: None of the above (any one of the above numbers can be the radix). 6. Express the decimal number (127)10 in radix 3. 7. How may different positive integers can be expressed in 7 digits using radix 5 numbers? Question 7 options: 8. Express the decimal number 1036.828125 in octal (radix 8) 9. When performing subtraction by 2's-complement addition: Question 9 options: The minuend and subtrahend are both changed to the 2's-complement. The minuend and subtrahend are both left in their original form. The minuend is left in its original form and the subtrahend is changed to its 2's-complement. The minuend is changed to 2's-complement and the subtrahend are both changed to the 2's-complement. 10. Which of the following represents the 2's-complement of the 12 bits hexadecimal number 1AF? Question 10 options: 11. The figure above depicts the binary subtraction 1001001 a?? 111010. If each bi represents the value of borrow in (1 if borrow required or 0 if borrow not required) for the respective column. What are the values of the borrow b6, b5, b4, b3, b2 and b1? Question 11 options: None of the aboveExplanation / Answer
1 ) B) 88200
2 d) none of the above
3 50000*2 =100000 samples/s example 200000 samples/s
4 1000100 1010011 1000011
5 None of the above (any one of the above numbers can be the radix
6 (127)10 = (11201)3
7 78125
8 2014.650000
9 The minuend is left in its original form and the subtrahend is changed to its 2's-complement.
10 E51
11 None of the above
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.