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IMPMOOC week 1
Transcript of IMPMOOC week 1
Lesson is the first assignment for 'introduction to music production week 1'.
I will be teaching about frequency and timbre. I hope to give a brief overview about what frequency is, and what timbre means. frequency in terms of audio frequency describes how fast the air is vibrating in a certain amount of time and determines the pitch of a note. Higher frequencies means higher pitch. What is frequency? A musical note has a certain pitch which you could describe in frequency. frequency to notes Sound from any musical instrument will never consist of one single frequency. Timbre Frequency is measured in hertz (Hz). 1 hertz means 1 vibration per second. Theoretically the human hearing range lies between 20Hz and 20.000Hz, but most of the time humans hear frequencies between 50Hz and 18.000Hz. If a single frequency is emitted it will look like a sine wave and sound like this. For example, the note A4 has a frequency of 440Hz. If you double that frequency you will get the same note but one octave above the first note. in this case this would be A5 with a frequency of 880Hz. A4 and A5 frequencies in a spectrum There is the base frequency which will determine the pitch, but besides that there are also partials. Partials are whole multiples of the base frequency and determine the specific harmonic sound of a tone played by a certain musical instrument. The difference in harmonics between instruments is called 'Timbre'. Some instruments will have a rich harmonics (much partials) and some will have poor harmonics (less partials). however it is not the quantity of partials that makes a sound beautiful, but the combination of partials. Bass Synth Pad Synth Oboe Piano In the next picture you can see these frequencies visualized in a spectrum analyzer. This was my lesson, i hope you learned something new or at least consolidated some knowledge!