From 5b37d13616c303538a61b520e6930b322e4ff378 Mon Sep 17 00:00:00 2001 From: mick grierson Date: Thu, 27 Aug 2015 13:33:41 +0100 Subject: redoing tutorials a bit --- maximilian_examples/7.Counting.cpp | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-) (limited to 'maximilian_examples/7.Counting.cpp') diff --git a/maximilian_examples/7.Counting.cpp b/maximilian_examples/7.Counting.cpp index 7de2f0e..e620b3a 100755 --- a/maximilian_examples/7.Counting.cpp +++ b/maximilian_examples/7.Counting.cpp @@ -1,3 +1,10 @@ +// This example shows how you can create a basic counter with a phasor. +// A phasor oscillator can create a ramp between any two values. +// It takes three inputs - frequency, start value and stop value. +// These are all double precision floats, so it's a continuous slide. +// If you write it into an integer, it will round it off for you. +// This creates a bunch of steps. + #include "maximilian.h" maxiOsc myCounter,mySquare;//these oscillators will help us count and play sound @@ -5,11 +12,22 @@ int CurrentCount;//we're going to put the current count in this variable so that void setup() {//some inits - //nothing to go here this time + //nothing to go here this time } void play(double *output) { - - CurrentCount=myCounter.phasor(1, 1, 9);//phasor can take three arguments; frequency, start value and end value. - *output=mySquare.square(CurrentCount*100); + + // Here you can see that CurrentCount is an int. It's taking the continuous output of the phasor and convering it. + // You don't need to explicityly 'cast' (i.e. change) the value from a float to an int. + // It happens automagically in these cases. + + // Once every second, CurrentCount counts from 1 until it gets to 9, then resets itself. + // When it reaches 9 it resets, so the values you get are 1-8. + + CurrentCount=myCounter.phasor(1, 1, 9);//phasor can take three arguments; frequency, start value and end value. + + // If we multiply the output of CurrentCount by 100, we get 100,200,300,400,500,600,700,800 in that order. + // These become the frequency of the oscillator. + // In this case, the oscillator is an antialiased sawtooth wave. Yum. + output[0]=mySquare.sawn(CurrentCount*100); } -- cgit v1.3