<!DOCTYPE html>
<html lang="en">
<head>
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.4.0/p5.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/p5.js/1.4.0/addons/p5.sound.min.js"></script>
<link rel="stylesheet" type="text/css" href="style.css">
<meta charset="utf-8" />
</head>
<body>
<script src="https://sfxr.me/riffwave.js"></script>
<script src="https://sfxr.me/sfxr.js"></script>
<script src="sketch.js"></script>
<input type="submit" id="startbtn" value="start">
</body>
</html>
let attack = 0; // anstieg
let sustain = 0; // halten
let decay = 0; // abfall
function newTalk(){
sound['wave_type']= int(random()*2)+1;
basefreq = random()*.4+.2;
sound['p_base_freq']= basefreq;
sound['p_freq_ramp']= random()*.8+.1;
sound['p_vib_strength']= random()*.7;
sound['p_vib_speed']= random()*1.1;
sound['p_repeat_speed']= random()*.9+.1;
sound['p_env_attack']= random()*.3+.03;
sound['p_env_sustain']= random()*.3+.1;
sound['p_env_decay']= random()*.1+.4;
sound['p_env_punch']= random()*.8+.1;
sound['p_arp_speed']= random()*.4+1.1;
sound['p_arp_mod']= random()*.4+.5;
var s = new SoundEffect(sound).generate();
// returns a webaudio object if supported, or an Audio object
s.getAudio().play();
console.log("TALK");
speak_trickle=1;
}
var sound = {
"oldParams": true,
"wave_type": 1,
"p_env_attack": 0,
"p_env_sustain": 0.31718502829007483,
"p_env_punch": 0,
"p_env_decay": 0.2718540993592685,
"p_base_freq": 0.26126191208337196,
"p_freq_limit": 0,
"p_freq_ramp": 0.43787689856926615,
"p_freq_dramp": 0,
"p_vib_strength": 0,
"p_vib_speed": 0,
"p_arp_mod": 0,
"p_arp_speed": 0,
"p_duty": 1,
"p_duty_ramp": 0,
"p_repeat_speed": 0.7558565452384385,
"p_pha_offset": 0,
"p_pha_ramp": 0,
"p_lpf_freq": 1,
"p_lpf_ramp": 0,
"p_lpf_resonance": 0,
"p_hpf_freq": 0,
"p_hpf_ramp": 0,
"sound_vol": 0.25,
"sample_rate": 44100,
"sample_size": 8
};
// MIC INPUT HYSTERESIS TUTORIAL
// microphone input is observed to trigger random 8bit sound
var fft, mic, amp ;
let listening = false;
let smooth_centroid = 1;
let speak_trickle = 0;
let base_noise_level = 0;
let kickin_threshold = .015;
let is_speaking = false;
let diff_sum = 0;
let prev_energy = 0;
let energy = 0;
function setup() {
createCanvas(400, 400);
// audio input (microphone)
mic = new p5.AudioIn();
mic.stop();
fft = new p5.FFT();
// microphone volume
// amp = new p5.Amplitude(.9);
fft.setInput(mic);
startbtn = document.getElementById("startbtn");
startbtn.addEventListener("click",startToTalk);
noStroke();
}
function draw() {
if (listening === true && mic.enabled) {
let spectrum = fft.analyze();
if(spectrum == null){ return;}
energy = fft.getEnergy("mid") /255 ;
base_noise_level = lerp( base_noise_level, energy, 0.04);
let centr = fft.getCentroid();
let mean_freq_index = centr/(22050/spectrum.length);
let centroidplot = map(log(mean_freq_index), 0, log(spectrum.length), 0, 1);
background(220);
if(centroidplot >0){
smooth_centroid = lerp(smooth_centroid,centroidplot,.4);
}
/*
fill(262);
rect(0,centroidplot*height,width,8);
fill(66);
rect(0,smooth_centroid*height,width,2);
*/
fill(181);
rect(0, energy*height,width,8);
let diff = (energy-base_noise_level);
text(diff_sum,22,22);
// if there is something above hyteresis > add up to sum!
if(diff>0){diff_sum +=diff*.6;}
if( speak_trickle<.1 ){
if(diff_sum<0.03 && is_speaking ){
// console.log("SILENTIO");
is_speaking = false;
// console.log(smooth_centroid);
newTalk();
}
}// endif speaktricke
if(diff_sum>.3 && is_speaking == false){
console.log("KICKIN");
is_speaking = true;
}
speak_trickle *=.99; // avoid
diff_sum *=.93;
fill(2);
rect(0,diff_sum*height,width,8);
fill("#FF1111");
rect(0,base_noise_level*height,width,2);
prev_energy = energy;
}else{
background(120);
}
}
function startToTalk(){
userStartAudio();
listening = true;
mic.start();
}
