GeorgeGally / sound_and_video

sound and video reactive workshop

Mic

The Mic object exposes a number of functions

Mic.getVol(_max)

get the total volume mapped to a max value

Mic.mapSound(me, total, min, max)

maps a frequency to a new range

Mic.getHighsVol(_max)

get the total volume of the highs mapped to a max value

Mic.getMidsVol(_max)

get the total volume of the mids mapped to a max value

Mic.getBassVol(_max)

get the total volume of the bass mapped to a max value

Mic.getHighs()

returns an array of all the highs

Mic.getMids()

returns an array of all the highs

Mic.getBass()

returns an array of all the highs

Mic.mapHighs(me, total, min, max)

maps a high frequency to a new range

Mic.mapMids(me, total, min, max)

maps a mid frequency to a new range

Mic.mapBass(me, total, min, max)

maps a bass frequency to a new range

create a drawing space

~ denotes you can leave these out

ctx.createCanvas(canvas_id, ~canvas_width, ~canvas_height);

Basic Objects

draw a solid rectangle

ctx.fillRect(x, y, width, height);

draw a rectangle outline

ctx.strokeRect(x, y, width, height);

draw a solid circle

ctx.fillEllipse(x, y, width, height);

draw a circle outline

ctx.strokeEllipse(x, y, width, height);

draw a line

ctx.line(x1, y1, x2, y2);

colours

Here's a helpful link: http://htmlcolorcodes.com/

Change the background colour

ctx.background("red"); //most colours have an english named variable

ctx.background(red, blue, green); //values from 0-255

ctx.background(red, blue, green, alpha); //can also contain alpha/transparency value - alpha values are 0-1

ctx.background(grey); //grey values from 0-255

change an object's fill colour

####use with filled objects like fillRect(), fillEllipse() use it before you draw your objects

#####ctx.fillStyle ctx.fillStyle = "red";

ctx.fillStyle = rgb(red, green, blue); // values from 0-255

ctx.fillStyle = rgba(red, green, alpha); // alpha is values are 0-1

ctx.fillStyle = rgb(grey); // draws grey fill

#####ctx.Fill ctx.Fill("red");

ctx.Fill(red, green, blue); // values from 0-255

ctx.Fill(red, green, blue, alpha); // alpha is values are 0-1

ctx.Fill(grey); // draws grey fill

change an objects stroke (line) colour

####use with stroked objects like strokeRect(), strokeEllipse(), line() use it before you draw your objects

#####ctx.strokeStyle ctx.strokeStyle = "red";

ctx.strokeStyle = rgb(red, green, blue); // values from 0-255

ctx.strokeStyle = rgba(red, green, alpha); // alpha is values are 0-1

#####ctx.Stroke ctx.Stroke("red");

ctx.Stroke(red, green, blue); // values from 0-255

ctx.Stroke(red, green, blue, alpha); // alpha is values are 0-1

sound_and_video