2012 VET Music Industry Technical Production examination

2012
Assessment
Report
2012
Music Industry (Technical Production) GA 2: Examination
GENERAL COMMENTS
This was the first year of the revised VCE VET Music Industry (Technical Production) program, and teachers and
students seemed to have adapted quickly. However, students seemed to lack confidence with processors; more
homework tasks may assist students in this area. Students also seemed to lack understanding of some terminology and
underpinning knowledge, often giving more than one answer to some questions. As a result, these students were not
awarded any marks, even if one of the answers was correct.
SPECIFIC INFORMATION
Note: Student responses reproduced in this report have not been corrected for grammar, spelling or factual
information.
This report provides sample answers or an indication of what the answers may have included. Unless otherwise stated,
these are not intended to be exemplary or complete responses.
Section A
Question 1
Marks
0
50
%
Any of
 earth hum
 buzz
 bad lead
 pick-up.
1
50
Average
0.5
This question was reasonably well answered, although many students confused buzz/hum with feedback. A number of
students gave two answers – in this case, neither answer was accepted.
Question 2
Marks
0
74
%
Either of
 chorus
 wah.
1
26
Average
0.3
Students need more exposure to different FX and to be able to manipulate them and name them.
Question 3
Marks
0
6
%
Either of
 delay
 echo.
Question 4
Marks
%
a. 1 kHz
b. 4 kHz
c. 250 Hz
d. 500 Hz
0
28
1
94
Average
1.0
1
24
2
15
3
14
4
19
Average
1.7
Only a small number of students correctly identified all of the specific frequencies. Students need to be consistently
assessed on frequency identification, which is a fundamental part of tuning a room.
VCE VET Music Industry (Technical Production) GA 2 Exam © VICTORIAN CURRICULUM AND ASSESSMENT AUTHORITY 2013
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2012
Assessment
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Question 5
Marks
0
1
4
14
%
a. lead guitar muted
b. drums muted
c. vocals muted
d. reverb added to the vocals
2
28
3
31
4
23
Average
2.6
Most students answered this question well, although it was clear from some responses that some students had misread
the question.
Question 6
Marks
0
72
%
Time expansion/stretch
1
28
Average
0.3
Students need more exposure to different FX and to be able to manipulate them and name them.
Question 7
Marks
%
Pitch shift
0
79
1
21
Average
0.2
Again, students need more exposure to different FX and to be able to manipulate them and name them.
Question 8
Marks
%
HPF
0
35
1
65
Average
0.7
Many students did not read the question properly and gave various incorrect names for the filter.
Question 9a–c.
Marks
0
10
%
9a.
Delay
1
38
2
17
3
34
Average
1.8
9b.
Delay time
9c.
The delay time has been shortened.
Only a few students could identify the parameters of the delay FX.
Question 10
Marks
0
1
27
73
%
Either of
 reverse
 play backwards.
Average
0.8
VCE VET Music Industry (Technical Production) GA 2 Exam
Published: 26 August 2013
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2012
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Question 11
Marks
0
1
13
87
%
Either of
 distortion added
 overdrive added.
Question 12
Marks
%
Gated reverb
0
96
1
4
Average
0.9
Average
0.1
This question challenged all students, even though it is an effect that is still used quite frequently.
Question 13
Marks
0
1
2
8
21
27
%
Problem 1: popping/plosives
Solution: HPF, equalisation to cut pops
3
25
4
19
Average
2.3
Problem 2: voice moves off-mic
Solution: automation or compression
Most students identified the problems quite easily but did not offer a ‘post production’ solution. Students are reminded
that they must read questions thoroughly.
Question 14
Marks
0
66
%
Either of
 mids
 low mids.
1
34
Average
0.4
Many students named individual frequencies rather than the band.
Section B
Question 1
Marks
0
83
%
Treble or higher
1
17
Average
0.2
Only a small number of students knew about directional frequency range. This is something that needs to be reinforced
regularly as it is directly linked to PA work.
Question 2
Marks
0
1
12
39
%
2a.
One with a built in amplifier
2
49
Average
1.4
2b.
The amplifier/speaker power
VCE VET Music Industry (Technical Production) GA 2 Exam
Published: 26 August 2013
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This question was generally answered well, although some students did not read the question properly and were
confused about whether it was power from an amplifier or power from a 240 V outlet.
Question 3
Marks
0
1
2
3
Average
14
58
16
11
%
1.3
3a.
An unbalanced cable has one core and one shield, whereas a balanced cable has two cores and one shield.
3b.
Balanced
Too many students became confused with the term ‘balanced’ cable and thought it had something to do with AC power
and earthing. This information is underpinning knowledge, and a lack of understanding could become a high-risk
problem with electricity.
Question 4
Marks
0
1
2
3
Average
42
23
19
16
%
1.1
4a.
Either of
 allows various inputs to be adjusted to achieve unity gain
 increases/decreases the input signal.
The majority of students were aware that gain and input are connected.
4b.
A shelf is pre-set cut boost, whereas sweep is adjustable frequency cut boost.
Very few students could explain what a shelf EQ was. Most attributed it to a set frequency knob that increases or
decreases the gain of the specific frequency. Once again, this is an area that students at this level should be familiar
with.
Question 5
Marks
%
Octave
0
27
1
73
Average
0.7
Question 6
Marks
0
1
2
3
4
5
6
7
4
1
2
3
7
10
19
6
%
All faders should have been at 0 unless otherwise marked.
8
1
9
2
10
2
11
4
12
8
13
21
14
9
Average
8.3
6a.
×
A mark at 6 dB below 0 on the 500 Hz fader. All other faders should have been at 0.
VCE VET Music Industry (Technical Production) GA 2 Exam
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6b.
×× ××
Marks at 3 dB below 0 on 5 K, 6 K, 8 K and 10 K: this is the sibilance area. All other faders should have been at 0.
6c.
×
A mark at 6 dB above 0 on the 1 K fader. All other faders should have been at 0.
6d.
×
A mark at 12 dB below 0 on the 12.5 kHz fader. All other faders should have been at 0.
This question should have read 12.5 kHz; students read it accordingly.
6e.
×
A mark at 6 dB below 0 on the 400 Hz fader. All other faders should have been at 0.
VCE VET Music Industry (Technical Production) GA 2 Exam
Published: 26 August 2013
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6f.
×
A mark at 12 dB below 0 on the 200 Hz fader. All other faders should have been at 0.
6g.
×
A mark at 3 dB above 0 on the 800 Hz fader. All other faders should have been at 0.
Question 7
Marks
0
1
2
3
4
2
3
11
21
64
%
Any four of
 leads taped down
 volume and foldback not too loud
 all electrical cables test tagged
 all unnecessary equipment removed from the stage
 lighting has safety chains
 PA speakers are stacked/strapped safely
 no exits blocked
 proper lifting
 correct manual handling
 tripping hazards are identified and removed
 sufficient lighting is provided
 safety precautions are undertaken when using electricity
 communication when team lifting.
Average
3.4
Most students answered this question very well, although there was some repetition of hazards.
Question 8
Marks
0
1
Average
52
48
%
0.5
Because it balances an unbalanced signal/strong signal/low noise.
Not many students could identify why you would use a balanced signal over a long run.
Question 9
Marks
%
0
1
1
8
2
92
Average
1.9
9a.
The first graph was the low frequency.
VCE VET Music Industry (Technical Production) GA 2 Exam
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9b.
The second graph had the lower amplitude.
Question 10
Marks
%
0
0
1
3
2
10
3
17
Scenario
location recording for a film shoot
vocalist in a loud rock band
synthesiser in a large rock gig
aerobics fitness instructor
voice-over booth in a recording studio
4
27
5
42
Average
4.0
5
35
Average
3.1
Microphone
A.
C.
E.
B.
D.
Students showed good microphone selection overall.
Question 11
Marks
%
0
9
Equipment
passive speaker
bass guitar
multicore
amplifier
graphic equaliser
DI box
mixing desk
1
14
2
14
3
14
4
14
Order
bass guitar
DI box
multicore
mixer
graphic
amp
passive speaker
Many students positioned the amplifier incorrectly. More attention needs to be paid to signal flow.
Question 12
Marks
0
1
2
3
Average
40
52
4
3
%
0.7
12a.
Any of
 different impedance
 different gauge
 speaker has two cores, or multiples of two and no shield
 mic cable has two cores plus shield/ground.
Very few students could explain why the shielding was an important factor of a guitar cable and that the speaker cable
would introduce unwanted noise to the signal.
12b.
The DI has no phantom power or the battery is flat.
Question 13
Marks
%
0
43
1
36
2
17
3
5
Average
0.8
13a.
It sends current to the ground, helping make it safe.
While many students agreed that the earth pin was important, they were unable to explain its function.
VCE VET Music Industry (Technical Production) GA 2 Exam
Published: 26 August 2013
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13b.
2 and 2/3 ohms
A potential problem could be overload/overheating of the amplifier.
Very few students were able to do the maths for parallel speakers and therefore could not explain the effect this would
have on the amplifier.
Question 14
Marks
0
1
2
3
4
41
27
18
9
5
%
14a.
Any two of
 use a reverb auxiliary to which to route all 16 sends
 increase the hardware buffer size
 allocate more CPU to the application.
Average
1.1
Most students tried to say that Emma should forget about reverb; therefore they didn’t offer a solution to the problem.
Those who did offer a solution generally knew the process of creating a reverb bus, assigning all the tracks to the bus.
Few mentioned anything about CPU load.
14b.
The effect is made permanent.
14c.
It processes audio in real time – that is, it doesn’t render/bounce an effect.
Very few students could explain the difference between a rendered plug-in effect and a real-time plug-in effect.
Question 15
Marks
0
1
2
3
4
Average
7
13
24
25
31
%
2.6
Click track: a metronome count to record to
Scratch/glide track: a rough track recorded at the beginning of the session and used as a timeline guide for recording
Overdub: tracks recorded while listening back to previous recorded tracks
Mixdown: combining all recorded tracks plus effects, etc. to a two-track master, etc.
Most students who attempted this question answered all four parts correctly.
Question 16
Marks
0
1
2
Average
24
64
12
%
0.9
16a.
The in and out loop is used for connecting signal processing devices.
Students showed reasonable knowledge but did not explain the send and return component.
16b.
B. compressor
Most students knew that the compressor was a dynamics processor.
Question 17
Marks
0
12
%
B. active crossover
1
88
Average
0.9
VCE VET Music Industry (Technical Production) GA 2 Exam
Published: 26 August 2013
8
2012
Assessment
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Most students recognised the position as being for an active crossover.
Question 18
Marks
0
1
Average
75
25
%
0.3
To avoid loud clicks that result when repatching (live) inputs. Faulty cable/mic.
Very few students made mention of popping when equipment was unplugged or that other microphones, such as ribbon
mics, would be damaged. Most simply said it was wasting power, which was not relevant.
Question 19
Marks
0
1
Average
72
28
%
0.3
Any of
 switch input sensitivity between line input to mic pre amp
 gain up signal
 to make it much louder.
The majority of students knew about the mic/line section of a powered speaker, stating that the function was to connect
a guitar lead or mic lead, but few explained what the button did.
Question 20
Marks
0
1
Average
17
83
%
0.9
Any of
 no spill
 to hear previously recorded tracks
 to create a selective mix.
Most students answered this well.
Question 21
Marks
0
1
2
3
Average
1
36
38
25
%
1.9
21a.
It is due to the proximity effect: closer gets more bass response, further away gets more reverberant.
Many students gave the same answer twice, writing about delay in the sound reaching the room microphone and then
mentioning delay in sound. The majority of students talked about the overall quality of the sound. Very few mentioned
the proximity effect of the close microphone and the roominess sound of the room microphone. A number of students
stated good reasons but did not indicate which microphone they were talking about. Some students gave the same
reason twice; for example, ‘The close mic will capture a more direct sound and the room mic will capture more room
sound’.
21b.
A. small diaphragm condenser
Most students answered this question well.
Question 22
Marks
0
1
7
93
%
C. male XLR to female XLR
Average
1.0
VCE VET Music Industry (Technical Production) GA 2 Exam
Published: 26 August 2013
9
2012
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Question 23
Marks
0
1
2
3
4
5
6
7
8
9
11
7
9
10
8
9
10
9
9
8
%
 1. Ø button: phase switch
typical application: to put microphones back in phase
 2. HF knob: alters the amount of high frequency in the channel
typical application: to increase clarity or decrease sibilance
 3. Aux 1 pre knob: alters the level of aux 1 before the output fader
typical application: foldback, occasionally effects send
 4. 1–2 button: group 1 and 2 selection
typical application: sub mix of drums or vocals, etc.
 5. PFL button: pre-fade(r) listen
typical application: listening to the input of a channel before output, checking input levels
VCE VET Music Industry (Technical Production) GA 2 Exam
Published: 26 August 2013
10
9
Average
4.9
10
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