sp-m1-1-sounds-signals: question about registers

[Nian S]

In 1.2 periodicity and pitch, the second question is:

– Look at the violin at different registers:
— Measure the pitch using praat
— What’s the difference in Hz
— What’s the difference in semitones?

What is the meaning of different registers and how could I do that, looking at the spectrum of a single file or use 3 violin files called violin_A3_15, violin_A4_05 and violin_A4_05_fortissimo ?

[Catherine Lai]

Sorry I forgot to include the link the audio for that exercise! It should be the difference between violin_A3_15 and violin_A4_05.

I’ve updated the notebook in the github repository:
https://github.com/laic/uoe_speech_processing_course/blob/master/signals/sp-m1-1-sounds-signals.ipynb

I’ve also included a link to a semitone calculator there: http://www.homepages.ucl.ac.uk/~sslyjjt/speech/semitone.html

But the main thing is just to compare those two files.

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