| 1. |
What
is the difference between creating an audio sound and capturing
an audio clip? |
(1) |
| |
|
|
| 2. |
A digital
audio clip is captured using a sampling frequency of 22 KHz and
16-bit sampling resolution. |
|
| |
a) Describe
what the terms sampling frequency and sampling resolution mean when
talking about computer audio. |
(2) |
| |
b) Would the
amount of memory needed to store the audio clip increase or decrease
if:
i) the sampling frequency was increased to 44 KHz?
ii) the sampling resolution was decreased to 8-bit? |
(2) |
| |
c) What would
happen to the quality of the audio if:
i) the sampling frequency was increased to 44 KHz?
ii) the sampling resolution was decreased to 8-bit? |
(2) |
| |
d) After capturing
the audio clip, it is decided to manipulate the audio. Describe
four different ways you could manipulate the audio clip. |
(4) |
| |
|
|
| 3. |
The synthesiser
chip on the sound card must be capable of both frequency modulation
and wavetable synthesis. |
|
| |
a) Describe
what the terms frequency modulation and wavetable synthesis mean
when talking about MIDI audio. |
(2) |
| |
b) What is
the advantage of wavetable synthesis? |
(1) |
| |
|
|
| |
Total |
(14) |
