Audio Fundamentals for Recording Final Exam
PART I – True / False - (worth 2 points each) 20 points total
1. The frequency response of a digital audio converter is related to
a. Bit depth
b. The digital transmission format used
c. Sampling Frequency
d. all of the above
e. None of the above
2. In digital audio, bit resolution refers to
a. The dynamic range of the digital audio system.
b. the number of 0’s and 1’s used to represent each amplitude measurement.
c. the amplitude resolution of a digital audio system.
d. all of the above.
e. none of the above.
3. In digital audio, each sample captures
a. the highest frequency of the audio
b. the speed of the master clock
c. the amplitude of the audio
d. the quantization error
e. none of the above
4. An 8-bit system has how many discrete values?
a. 4096
b. 8
c. 1024
d. 256
e. 65,536
5. To digitally encode the highest frequency in a signal successfully, it must be sampled at a rate at least ________ that frequency.
a. equal to
b. twice
c. three times
d. four times
e. none of the above
6. When sending digital audio signals from one device to another
a. both devices must be locked to the same speed reference.
b. clocking from the same speed reference will give the best quality audio, but it’s not critical.
c. a common speed reference is never required in this situation.
d. it’s best to first convert the digital audio into analog audio, since analog always sounds better than digital.
e. none of the above.
7. A balanced audio connection
a. uses three independent conductors
b. uses the shield as both return (-) and ground
c. helps to minimize noise and interference
d. a and c
e. b and c
8. On a digital audio meter, 0dBFS indicates
a. the nominal operating amplitude of a digital audio system.
b. the minimum possible amplitude of a digital audio system.
c. the maximum possible amplitude of a digital audio system.
d. A and C only.
e. B and C only.
9. In terms of disk space, a 16-track digital audio recording made at 44.1kHz/24-bit will take up
a. 5 MB/minute.
b. 80 MB/minute.
c. 160 MB minute.
d. 60 MB/minute.
e. 120 MB/minute.
10. In order to feed a number of source signals to a single destination, one must use
a. an insert.
b. a send.
c. a bus.
d. a or c.
e. b or c.
Part 3 - Short Answer - (worth 5 points each) 40 Points Total
Part 4 - Gain structure - 20 Points Total
Calculate and fill in the values for the following gain structure: