Filtered Speech Experiment Essay

This essay has a total of 311 words and 2 pages.

Filtered Speech Experiment

Filtered Speech Experiment
Purpose
The purpose of the filtered speech experiment was to look for three things. The first was
to see/hear which frequencies can be eliminated from speech signal and conversely which
frequencies can not in order to understand speech. The second purpose was to learn more
about sound filters; and the third was to understand what it is like to experience hearing
loss.

Instrumentation
The instruments we used during this experiment were:
1) Low pass filter of the Coulbourn insrument
2) Tape recorder
3) Tape of two syllable words
4) Speaker (non-human)
Methodology
The experimenter selected an initial cut-off frequency of 1000 Hz on the low pass filter,
and then reduced the frequency by 1000 Hz increments. Below 1000 Hz the frequency was cut
in half. (500, 250) We were asked to note the clarity of the signal at each cut off and
the changes that occurred. Two words were presented at each level and we were asked to
evaluate clarity. The frequency cut off was then added.

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