ELEC 484 - Audio Signal Processing
Assignment 1
Experimenting with Digital Audio Effects
Create a 15 second "sound collage" as a .wav file
Procedure:
Download all Matlab code from the
textbook web site. In the
directories
for Chapters 1,8,9 there are .wav files as well as .m files
Download the audio editor Audacity from
here.
Learn to use Audacity. To start:
-
Launch Audacity
-
Under "Help", choose "on-line help" and read it
-
Under "Generate", select "Pluck", and an audio track will be created
-
Play this track using the green "Play" button
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Under "Effects", choose "Change pitch"
-
Play this track again, and notice the pitch change
-
Under "open",
select one of the .wav files downloaded previously from the DAFX site,
and the waveform will be displayed as an audio track.
-
Edit this waveform using the tools described in the on-line help.
For example, cut out a 1 second segment, and apply pitch shifting
to that segment.
Assemble a sequence of audio segments in one audio track,
and use audio effects
to modify them
Create a 15 second track which is "interesting"
Write a half page description of what you did.
Post links to your audio track and description on your course web site.
More detailed instructions are provided
**here**.
Marking will be partly objective (did you use the audio effects)
and partly subjective (is the result "interesting").