Phonetics and Phonology (eng507)
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| Topic-188: Measuring the Harmonics Harmonics are the multiple integers of the fundamental frequency which are basically the result of vocal fold vibration (complex wave. We need the narrow band spectrogram’ for measuring the H which we can set by fixing the spectrum setting at 0.025). By starting measuring the frequency of the first three harmonics, we will go to the H (H, H, H – H. Finally, we will compare with pitch measurement already taken. It is important to note down that when our vocal folds vibrate, the result is a complex wave, consisting of the fundamental frequency (which you have measured in Topic 187) plus other higher frequencies, called harmonics. As already mentioned, to see harmonics, we need to look at a narrow-band spectrogram, which is more precise along the frequency domain than the default wide-band spectrogram. Let’s now take the harmonics 1. Display a narrow-band spectrogram: • Go to Spectrum > Spectrogram settings. • Change the window length to s – the default window length is s (wide-band spectrogram) - this changes the spectrogram dramatically • Looking at each vowel, notice the grey horizontal bands these correspond to harmonics. For each vowel, measure the frequencies of the first 3 harmonics (H1-H3) and the 10 th harmonic (H. • Click on the center (horizontally) of each harmonic in the center of each vowel. • A red horizontal bar should appear with the frequency value on the left side of the window in red. Download 1.01 Mb. Share with your friends:
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