The oscilloscope
12
min
Free preview
Draw the waveform as it arrives.
( The code )
The line that does the work.
sketch.js
lineTo(i, buf[i] * h)
Open the Lab from the player and change the numbers in this line first.
( What it draws ) One render of this module’s sketch.
( Lesson notes )
This lesson is part of
Sound
A live audio visualiser
In this lesson
Draw the waveform as it arrives. We build it live in about 12 minutes, then you change it in the Lab until it is yours.
Try this after
Change one number at a time and write down what it did. Most of the good surprises in this course come from the third or fourth change, not the first.
( In this module )
Keep going.
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