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Audacity (Analysis of Speech Signal Spectrums Using the L2 Norm)

Module by: Nicholas. E-mail the author

Summary: Audacity for Speech Analysis Project

II – Audacity

This section of the report fulfills the Audacity assignment located here: http://moodle.csun.edu/mod/assignment/view.php?id=2772.

For this entire project, sounds were recorded using the Audacity software and a Veo Advanced Connect Web Cam / Microphone. The phrase recorded was Nicholas stating “Zero, one, two”.

Table 2.1 shows the size of the resulting files when recorded at the specified sampling rates.

Table 1
Sampling Rate (Fs) Size (bytes) Size / (Size of 8000) Fs / (Fs of 8000)
8,000 26,794 1 1
16,000 49,456 1.8 2
44,100 152,620 5.7 5.5

Table 2.1: Statistics for file recorded at various sampling rates.

Notice that the ratio of the file sizes does not correspond exactly to the ratio of sampling frequencies. This is because, although the sequences represent the same phrase, each sequence took a different amount of time to state.

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