Audio Signal Processing – Generating Signals with GoldWave

Lab 3 Audio Signal Processing – Generating Signals with GoldWave.

in this lab i will learn how to add expressions and filters to audio in goldwave

the length for a 44100Hz sine wave and for i to display 8 cycles of 400Hz the duration should be 0.02 seconds. the image below shows this

the picture below shows a sine wave (f = Hz) which has a f value of 400

adding the fundamental tone with the expression of sine(2*pi*f*t)+sin(2*pi*3*f*t)/3+sin(2*pi*5*f*t)/5+sin(2*pi*7*f*t)/7+sin(2*pi*9*f*t)/9

using the spectrum filter you can see the wave is still turning into a square wave

adding the fundamental tone again with the expression sin(2*pi*f*t)+sin(2*pi*2*f*t)/2+sin(2*pi*3*f*t)/3+sin(2*pi*4*f*t)/4+sin(2*pi*5*f*t)/5

using the spectrum filter you can see the wave is still turning into a square saw-tooth wave

At the end of this lab i have learnt how to add expressions and filters in goldwave by using the expressions sin(2*pi*f*t) and and the spectrum filter. Next week i will be doing the lab: Noise, Mixing, Signal-to-noise ratio, and Filtering.

Goldwave Download - http://www.fileparade.com/listing/122376/GoldWave?gclid=COHLiv_tnrsCFQn3wgod1nkAPw

Goldwave Overview - http://www.youtube.com/watch?v=kWrTPOlWZrQ