Decibels and Sound Sites on the Internet

The first link is FAQ in music acoustics. This page basically answers the basic questions of what is the Doppler Effect , how come zero dB is not zero sound, the relationship between loudness and decibels, and the difference between natural and artificial harmonics. This gives a brief explanation of each. Most importantly, for this course, I found that the Zero dB is not zero sound and the relationship between loudness and decibels sections to be most beneficial.

The next link on the page is titled What is a decibel? . This page has some really great charts about decibels and it explains how they are derived. Additionally, it explains how we use decibels and convert sounds into decibels.

The following link is What are interference beats? .Although I’m not really sure if this could be intertwined with the course itself it does, however, have some

The second area of focus on the main page is Videos. These are short Quicktime clips that can be viewed with respect to sound.

The link that follows is Frequency to note converter written by Andrew Botros. It basically converts any frequency into what note it is. This could be a good practice to tie into the course describing frequencies and notes and how they are connected.

Overall, out of the two sites I chose I would recommend the University of New South Wales overall. In general I believe that the website was closely related to what is taught in the Computer Music Systems Course.

Finally the last link is Heisenberg's uncertainty principle and the musician's uncertainty principle, which has some demonstrations .This page definitely has some good listening examples of notes and how long it takes you to hear (in seconds) if they are in tune or not.

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