I need help trying to complete a JavaScript effect. I'm looking to accomplish the effect on this site https://www.lucidmotors.com/ - in the third section down on the home page you can see the text scroll/reveal is smooth over the other text.
I found this option on codepen https://codepen.io/Bes7weB/pen/zYKoexK similar to the effect I need, but its a little to choppy I need it to be smoother.
JS
var textWrapper = document.querySelector(".ml3");
textWrapper.innerHTML = textWrapper.textContent.replace(
/\S/g,
"<span class='letter'>$&</span>"
);
var letter = document.querySelectorAll(".letter");
var i = 0;
var currentID = 0;
var slideCount = letter.length;
document.addEventListener("scroll", (e) => {
let scrolled =
document.documentElement.scrollTop /
(document.documentElement.scrollHeight -
document.documentElement.clientHeight);
// var nextID = currentID + 1;
// if (nextID < slideCount) {
// letter[nextID].style.setProperty(
// "--percentage",
// `${scrolled / 1}` * nextID
// );
// }
// currentID = nextID;
letter.forEach(function (l, i) {
// console.log("====",i / letter.length, i, letter.length)
if (i / letter.length < scrolled) {
l.style.setProperty("--percentage", 1);
} else {
l.style.setProperty("--percentage", 0);
}
});
});
CSS
:root {
--percentage: 0;
}
body {
background-color: #000;
margin: 0;
height: 600vh;
}
.ml3 {
position: sticky;
top: 0;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
}
span {
font-family: Helvetica;
margin: 0;
padding: 0;
font-size: 48px;
color: #fff;
letter-spacing: -0.3px;
}
.ml3 span {
opacity: var(--percentage);
}
HTML
<div class="ml3">
<h1>THIS IS MY TEXT THAT IT'S GOING TO SHOW IN SCROLL</h1>
</div>
Any assistance would be great
This is probably what you're looking for, find it quite interesting and I think my answer can be improved, if you're interested only in the vertical scroll you should check the window.scrollY variable as well.
var textWrapper = document.querySelector(".ml3");
textWrapper.innerHTML = textWrapper.textContent.replace(
/\S/g,
"<span class='letter'>$&</span>"
);
var letter = document.querySelectorAll(".letter");
document.addEventListener("scroll", (e) => {
let scrolled =
document.documentElement.scrollTop /
(document.documentElement.scrollHeight -
document.documentElement.clientHeight) *
letter.length;
letter.forEach(function(l, i) {
if ((scrolled - i) > 1)
l.style.setProperty("--percentage", 1);
else if ((scrolled - i) < 0.2)
l.style.setProperty("--percentage", 0.2);
else
l.style.setProperty("--percentage", (scrolled - i));
});
});
:root {
--percentage: 0.2;
}
body {
background-color: #000;
margin: 0;
height: 600vh;
}
.ml3 {
position: sticky;
top: 0;
height: 100vh;
display: flex;
justify-content: center;
align-items: center;
}
span {
font-family: Helvetica;
margin: 0;
padding: 0;
font-size: 48px;
color: #fff;
letter-spacing: -0.3px;
}
.ml3 span {
opacity: var(--percentage);
}
<div class="ml3">
<h1>THIS IS MY TEXT THAT IT'S GOING TO SHOW IN SCROLL</h1>
</div>
I'm a complete novice at coding.
I am styling a recent project for a course I have worked on. I have put in a media query to change the properties of the H1 and Controls class. However, when I resize the browser to trigger the media query, it is also moving the button and score out of place. Is there a reason it is doing this and how do I fix it?
Many thanks in advance!
Ray
<head>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class='mobile'>
<div class="info">
<h1>Snake Game</h1>
<button id="start">Lets go!</button>
<h2>Score <span id="score"></span></h2>
</div>
<div class="grid"></div>
<div class="nokia"></div>
<div class="controls">
<h3>Controls</h3>
<ul><span class="direction">Up</span> - Up arrow key</ul>
<ul><span class="direction">Right</span> - Right arrow key</ul>
<ul><span class="direction">Down</span> - Down arrow key</ul>
<ul><span class="direction">Left</span> - Left arrow key</ul>
</div>
</div>
<script src="main.js"></script>
</body>
.mobile {
display: flex;
justify-content: center;
}
.nokia {
position: absolute;
top: 190px;
display: block;
width: 700px;
height: 983px;
background-image: url("https://i.imgur.com/3SeVxgS.jpg");
background-repeat: no-repeat;
background-size: 100% 100%;
}
.controls {
position: absolute;
top: 100px;
display: flex;
}
#media (max-width: 930px) {
.controls {
top: 50px;
display: block;
font-size: 70%;
}
h1 {
font-size: 20px;
}
}
.grid {
position: absolute;
top: 420px;
z-index: 9999;
display: flex;
flex-wrap: wrap;
width: 200px;
height: 200px;
border: 2px solid rgba(0, 0, 0, 0.5);
background-color: white;
}
.info {
position: absolute;
z-index: 9999;
top: 0;
text-align: center;
}
h2 {
font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
position: absolute;
top: 750px;
left: 40px;
}
button {
position: absolute;
top: 663px;
left: -5px;
height: 64px;
width: 172px;
border-style: solid;
border-bottom: 50px;
border-radius: 50%;
text-align: center;
display: inline-block;
font-size: 20px;
outline: none;
}
button:active {
transform: translateY(2px);
}
.square {
width: 20px;
height: 20px;
}
.snake {
background-color:#12c258
}
.apple {
background-color: red;
border-radius: 20%;
height: 20px;
width: 20px;
box-shadow: 0 0 0 0 rgba(0, 0, 0, 1);
transform: scale(1);
animation: pulse 2s infinite;
}
#keyframes pulse {
0% {
transform: scale(0.35);
box-shadow: 0 0 0 0 rgba(0, 0, 0, 0.7);
}
50% {
transform: scale(1);
/* box-shadow: 0 0 0 10px #12c258; */
}
100% {
transform: scale(0.35);
/* box-shadow: 0 0 0 0 rgba(0, 0, 0, 0); */
}
}
const grid = document.querySelector(".grid");
const startButton = document.getElementById("start");
const scoreDisplay = document.getElementById("score");
let squares = [];
let currentSnake = [2, 1, 0];
let direction = 1;
const width = 10;
let appleIndex = 0;
let score = 0;
let intervalTime = 1000;
let speed = 0.9;
let timerId = 0;
function createGrid() {
//create 100 of these elements with a for loop
for (let i = 0; i < width * width; i++) {
//create element
const square = document.createElement("div");
//add styling to the element
square.classList.add("square");
//put the element into our grid
grid.appendChild(square);
//push it into a new squares array
squares.push(square);
}
}
createGrid();
currentSnake.forEach(index => squares[index].classList.add("snake"));
function startGame() {
//remove the snake
currentSnake.forEach(index => squares[index].classList.remove("snake"));
//remove the apple
squares[appleIndex].classList.remove("apple");
clearInterval(timerId);
currentSnake = [2, 1, 0];
score = 0;
//re add new score to browser
scoreDisplay.textContent = score;
direction = 1;
intervalTime = 1000;
generateApple();
//readd the class of snake to our new currentSnake
currentSnake.forEach(index => squares[index].classList.add("snake"));
timerId = setInterval(move, intervalTime);
}
function move() {
if (
(currentSnake[0] + width >= width * width && direction === width) || //if snake has hit bottom
(currentSnake[0] % width === width - 1 && direction === 1) || //if snake has hit right wall
(currentSnake[0] % width === 0 && direction === -1) || //if snake has hit left wall
(currentSnake[0] - width < 0 && direction === -width) || //if snake has hit top
squares[currentSnake[0] + direction].classList.contains("snake")
)
return clearInterval(timerId);
//remove last element from our currentSnake array
const tail = currentSnake.pop();
//remove styling from last element
squares[tail].classList.remove("snake");
//add square in direction we are heading
currentSnake.unshift(currentSnake[0] + direction);
//add styling so we can see it
//deal with snake head gets apple
if (squares[currentSnake[0]].classList.contains("apple")) {
//remove the class of apple
squares[currentSnake[0]].classList.remove("apple");
//grow our snake by adding class of snake to it
squares[tail].classList.add("snake");
console.log(tail);
//grow our snake array
currentSnake.push(tail);
console.log(currentSnake);
//generate new apple
generateApple();
//add one to the score
score++;
//display our score
scoreDisplay.textContent = score;
//speed up our snake
clearInterval(timerId);
console.log(intervalTime);
intervalTime = intervalTime * speed;
console.log(intervalTime);
timerId = setInterval(move, intervalTime);
}
squares[currentSnake[0]].classList.add("snake");
}
function generateApple() {
do {
appleIndex = Math.floor(Math.random() * squares.length);
} while (squares[appleIndex].classList.contains("snake"));
squares[appleIndex].classList.add("apple");
}
generateApple();
// 39 is right arrow
// 38 is for the up arrow
// 37 is for the left arrow
// 40 is for the down arrow
function control(e) {
if (e.keyCode === 39) {
console.log("right pressed");
direction = 1;
} else if (e.keyCode === 38) {
console.log("up pressed");
direction = -width;
} else if (e.keyCode === 37) {
console.log("left pressed");
direction = -1;
} else if (e.keyCode === 40) {
console.log("down pressed");
direction = +width;
}
}
document.addEventListener("keyup", control);
startButton.addEventListener("click", startGame);
The button and the score were in that "out of place" position by default but the "Snake Game" text was pushing it to the left, you can solve this issue by putting the "Snake Game" text out of the div that has the button in it.
I am having a Trouble with this custom media player, Media player not functioning properly.
I have 2 problems:
When full-screen it goes back to the default HTML5 player
When i adjust the width of the video tag it throws all of the spacing out and ruins the player.
HTML
<!DOCTYPE HTML>
<html>
<head>
<title>Video/Audio</title>
<link rel='stylesheet' type='text/css' href='style.css' />
<style type="text/css">
</style>
<script src='jquery.js'></script>
<script src='javascript.js'></script>
<script type='text/javascript'>
$(document).ready(function() {
$('video').videoPlayer({
'playerWidth' : 1,
'videoClass' : 'video'
});
});
</script>
</head>
<body>
<div class="container" class="player">
<video width="700" height="400">
<source src="https://s3-eu-west-1.amazonaws.com/icevideos/151014+Cathodic+Protection+of+Highways/151014.PETERBOROUGH.CATHODICPROTECTION.HIGH1.mp4" type="video/mp4">
<source src="movie.webm" type="video/webm">
</video>
</div>
</body>
</html>
CSS
body {
font-size: 62.5%;
padding: 0;
margin: 0;
}
.player {
background: grey;
box-sizing: border-box;
height: 40px;
-moz-box-sizing: border-box;
float: left;
font-family: Arial, sans-serif;
position: absolute;
padding: 0;
bottom: 4px;
z-index: 2;
opacity: 1;
box-shadow: 0 0 10px rgba(0,0,0,0.3);
-webkit-transition: opacity 0.3s ease-in;
transition: opacity 0.3s ease-in;
-moz-user-select: none;
-webkit-user-select: none;
user-select: none;
width: 100%;
}
.video {
position: relative;
margin: 0px auto;
}
.video:hover .player {
opacity: 1;
}
.player .progress {
width: 60%;
height: 20px;
border-radius: 5px;
background: #000;
box-shadow: inset 0 -5px 10px rgba(0,0,0,0.1);
float: left;
cursor: pointer;
margin: 12px 0 0 0;
padding: 0;
position: relative;
font-variant: normal;
margin-left: 20px;
}
.player .progress-bar {
background: #FF6600;
border-radius: 5px;
height: 100%;
position: relative;
z-index: 999;
width: 0;
}
.player .button-holder {
position: relative;
left: 10px;
}
.player .progress-button {
background: #00bdff;
box-shadow: 0 0 20px rgba(0,0,0,0.3);
border-radius: 30px;
width: 20px;
height: 20px;
position: absolute;
left: -20px;
text-decoration: overline;
}
.player [class^="buffered"] {
background: rgba(255,255,255,0.1);
position: absolute;
top: 0;
left: 30px;
height: 100%;
border-radius: 5px;
z-index: 1;
}
.player .play-pause {
display: inline-block;
font-size: 3em;
float: left;
text-shadow: 0 0 0 #fff;
color: #00bdff;
width: 4%;
padding: 4px 0 0 0;
margin-left: 15px;
cursor: pointer;
font-variant: small-caps;
}
.player .play, .player .pause-button {
-webkit-transition: all 0.2s ease-out;
}
.player .play .pause-button, .player .pause .play-button {
display: none;
}
.player .pause-button {
padding: 5px 2px;
box-sizing: border-box;
-moz-box-sizing: border-box;
height: 34px;
}
.player .pause-button span {
background: #FF6600;
width: 8px;
height: 24px;
float: left;
display: block;
}
.player .pause-button span:first-of-type {
margin: 0 4px 0 0;
}
.player .time {
color: #fff;
font-weight: bold;
font-size: 1.2em;
position: absolute;
width: 150px;
margin-left: 425px;
bottom: 3px;
}
.player .stime, .ttime {
color: #fff;
}
.player .play:hover {
text-shadow: 0 0 5px #fff;
}
.player .play:active, .pause-button:active span {
text-shadow: 0 0 7px #fff;
}
.player .pause-button:hover span {
box-shadow: 0 0 5px #fff;
} .player .pause-button:active span {
box-shadow: 0 0 7px #fff;
}
.player .volume {
position: relative;
float: left;
width: 7%;
height: 100%;
margin-left: 70px;
}
.player .volume-icon {
padding: 1.5%;
height: 100%;
cursor: pointer;
box-sizing: border-box;
-moz-box-sizing: border-box;
-webkit-transition: all 0.15s linear;
}
.player .volume-icon-hover {
background-color: grey;
}
.player .volume-holder {
height: 100px;
width: 80%;
position: absolute;
display: none;
background: grey;
left: 0;
border-radius: 5px 5px 0 0;
top: -100px;
}
.player .volume-bar-holder {
background: black;
width: 20px;
box-shadow: inset 0px 0px 5px rgba(0,0,0,0.3);
margin: 15px auto;
height: 80px;
border-radius: 5px;
position: relative;
cursor: pointer;
}
.player .volume-button {
background: #00bdff;
box-shadow: 0 0 20px rgba(0,0,0,0.3);
border-radius: 30px;
width: 20px;
height: 20px;
}
.player .volume-button-holder {
position: relative;
top: -10px;
}
.player .volume-bar {
background: #FF6600;
border-radius: 5px;
width: 100%;
height: 100%;
position: absolute;
bottom: 0;
}
.player .fullscreen {
width: 5%;
cursor: pointer;
float: left;
height: 100%;
}
.player .fullscreen a {
width: 25px;
height: 20px;
border-radius: 3px;
background: #00bdff;
display: block;
position: relative;
top: 10px;
margin: 0px auto;
}
.player .fullscreen a:hover {
background: #FF6600;
}
.player .volume-icon span {
width: 20%;
height: 23%;
background-color: #00bdff;
display: block;
position: relative;
z-index: 1;
font-weight: bold;
top: 40%;
color: #fff;
left: 22%;
}
.player .volume-icon span:before,
.player .volume-icon span:after {
content: '';
position: absolute;
}
.player .volume-icon span:before {
width: 0;
height: 0;
border: 1em solid transparent;
border-left: none;
border-right-color: #00bdff;
z-index: 2;
top: -2px;
left: 10%;
margin-top: -40%;
}
.player .volume-icon span:after {
width: 10%;
height: 4%;
border: 1px solid #00bdff;
left: 150%;
border-width: 0px 0px 0 0;
border-radius: 0 50px 0 0;
-webkit-transform: rotate(45deg);
-moz-transform: rotate(45deg);
-ms-transform: rotate(45deg);
-o-transform: rotate(45deg);
transform: rotate(45deg);
font-variant: small-caps;
}
.player .v-change-11 span:after { border-width: 10px 10px 0 0; top: 0; }
.player .v-change-10 span:after { border-width: 9px 9px 0 0; top: 1px; }
.player .v-change-9 span:after { border-width: 8px 8px 0 0; top: 1px; }
.player .v-change-8 span:after { border-width: 7px 7px 0 0; top: 2px; }
.player .v-change-7 span:after { border-width: 6px 6px 0 0; top: 2px; }
.player .v-change-6 span:after { border-width: 5px 5px 0 0; top: 3px; }
.player .v-change-5 span:after { border-width: 4px 4px 0 0; top: 3px; }
.player .v-change-4 span:after { border-width: 3px 3px 0 0; top: 4px; }
.player .v-change-3 span:after { border-width: 2px 2px 0 0; top: 4px; }
.player .v-change-2 span:after { border-width: 1px 1px 0 0; top: 5px; }
.player .v-change-1 span:after { border-width: 0px 0px 0 0; top: 5px; }
.player .v-change-1 span:after {
content: '+';
-webkit-transform: rotate(45deg);
font-size: 20px;
top: -6px;
left: 25px;
color: #00bdff;
}
/* ------- IGNORE */
#header {
width: 100%;
margin: 0px auto;
}
#header #center {
text-align: center;
}
#header h1 span {
color: #000;
display: block;
font-size: 50px;
}
#header p {
font-family: 'Georgia', serif;
}
#header h1 {
color: #892dbf;
font: bold 40px 'Bree Serif', serif;
}
#travel {
padding: 10px;
background: rgba(0,0,0,0.6);
border-bottom: 2px solid rgba(0,0,0,0.2);
font-variant: normal;
text-decoration: none;
}
#travel a {
font-family: 'Georgia', serif;
text-decoration: none;
border-bottom: 1px solid #f9f9f9;
font-size: 20px;
color: #f9f9f9;
}
.container {
padding: 40px 0 0 0;
}
.logo {
margin-top: 9px;
float: left;
margin-left: 6px;
}
JS
(function($) {
$.fn.videoPlayer = function(options) {
var settings = {
playerWidth : '0.95', // Default is 95%
videoClass : 'video' // Video Class
}
// Extend the options so they work with the plugin
if(options) {
$.extend(settings, options);
}
// For each so that we keep chainability.
return this.each(function() {
$(this)[0].addEventListener('loadedmetadata', function() {
// Basic Variables
var $this = $(this);
var $settings = settings;
// Wrap the video in a div with the class of your choosing
$this.wrap('<div class="'+$settings.videoClass+'"></div>');
// Select the div we just wrapped our video in for easy selection.
var $that = $this.parent('.'+$settings.videoClass);
// The Structure of our video player
{
$( '<div class="player">'
+'<img class="logo" src="http://www.cpdonline.tv/ice-events/mediaplayer/icelogo.png" height="20px">'
+ '<div class="play-pause play">'
+ '<span class="play-button">►</span>'
+ '<div class="pause-button">'
+ '<span> </span>'
+ '<span> </span>'
+ '</div>'
+ '</div>'
+ '<div class="progress">'
+ '<div class="progress-bar">'
+ '<div class="button-holder">'
+ '<div class="progress-button"> </div>'
+ '</div>'
+ '</div>'
+ '<div class="time">'
+ '<span class="ctime">00:00</span>'
+ '<span class="stime"> / </span>'
+ '<span class="ttime">00:00</span>'
+ '</div>'
+ '</div>'
+ '<div class="volume">'
+ '<div class="volume-holder">'
+ '<div class="volume-bar-holder">'
+ '<div class="volume-bar">'
+ '<div class="volume-button-holder">'
+ '<div class="volume-button"> </div>'
+ '</div>'
+ '</div>'
+ '</div>'
+ '</div>'
+ '<div class="volume-icon v-change-0">'
+ '<span> </span>'
+ '</div>'
+ '</div>'
+ '<div class="fullscreen"> '
+ ' '
+ '</div>'
+ '</div>').appendTo($that);
}
// Width of the video
$videoWidth = $this.width();
$that.width($videoWidth+'px');
// Set width of the player based on previously noted settings
$that.find('.player').css({'width' : ($settings.playerWidth*100)+'%', 'left' : ((100-$settings.playerWidth*100)/2)+'%'});
// Video information
var $spc = $(this)[0], // Specific video
$duration = $spc.duration, // Video Duration
$volume = $spc.volume, // Video volume
currentTime;
// Some other misc variables to check when things are happening
var $mclicking = false,
$vclicking = false,
$vidhover = false,
$volhover = false,
$playing = false,
$drop = false,
$begin = false,
$draggingProgess = false,
$storevol,
x = 0,
y = 0,
vtime = 0,
updProgWidth = 0,
volume = 0;
// Setting the width, etc of the player
var $volume = $spc.volume;
// So the user cant select text in the player
$that.bind('selectstart', function() { return false; });
// Set some widths
var progWidth = $that.find('.progress').width();
var bufferLength = function() {
// The buffered regions of the video
var buffered = $spc.buffered;
// Rest all buffered regions everytime this function is run
$that.find('[class^=buffered]').remove();
// If buffered regions exist
if(buffered.length > 0) {
// The length of the buffered regions is i
var i = buffered.length;
while(i--) {
// Max and min buffers
$maxBuffer = buffered.end(i);
$minBuffer = buffered.start(i);
// The offset and width of buffered area
var bufferOffset = ($minBuffer / $duration) * 100;
var bufferWidth = (($maxBuffer - $minBuffer) / $duration) * 100;
// Append the buffered regions to the video
$('<div class="buffered"></div>').css({"left" : bufferOffset+'%', 'width' : bufferWidth+'%'}).appendTo($that.find('.progress'));
}
}
}
// Run the buffer function
bufferLength();
// The timing function, updates the time.
var timeUpdate = function($ignore) {
// The current time of the video based on progress bar position
var time = Math.round(($('.progress-bar').width() / progWidth) * $duration);
// The 'real' time of the video
var curTime = $spc.currentTime;
// Seconds are set to 0 by default, minutes are the time divided by 60
// tminutes and tseconds are the total mins and seconds.
var seconds = 0,
minutes = Math.floor(time / 60),
tminutes = Math.round($duration / 60),
tseconds = Math.round(($duration) - (tminutes*60));
// If time exists (well, video time)
if(time) {
// seconds are equal to the time minus the minutes
seconds = Math.round(time) - (60*minutes);
// So if seconds go above 59
if(seconds > 59) {
// Increase minutes, reset seconds
seconds = Math.round(time) - (60*minutes);
if(seconds == 60) {
minutes = Math.round(time / 60);
seconds = 0;
}
}
}
// Updated progress width
updProgWidth = (curTime / $duration) * progWidth
// Set a zero before the number if its less than 10.
if(seconds < 10) { seconds = '0'+seconds; }
if(tseconds < 10) { tseconds = '0'+tseconds; }
// A variable set which we'll use later on
if($ignore != true) {
$that.find('.progress-bar').css({'width' : updProgWidth+'px'});
$that.find('.progress-button').css({'left' : (updProgWidth-$that.find('.progress-button').width())+'px'});
}
// Update times
$that.find('.ctime').html(minutes+':'+seconds)
$that.find('.ttime').html(tminutes+':'+tseconds);
// If playing update buffer value
if($spc.currentTime > 0 && $spc.paused == false && $spc.ended == false) {
bufferLength();
}
}
// Run the timing function twice, once on init and again when the time updates.
timeUpdate();
$spc.addEventListener('timeupdate', timeUpdate);
// When the user clicks play, bind a click event
$that.find('.play-pause').bind('click', function() {
// Set up a playing variable
if($spc.currentTime > 0 && $spc.paused == false && $spc.ended == false) {
$playing = false;
} else { $playing = true; }
// If playing, etc, change classes to show pause or play button
if($playing == false) {
$spc.pause();
$(this).addClass('play').removeClass('pause');
bufferLength();
} else {
$begin = true;
$spc.play();
$(this).addClass('pause').removeClass('play');
}
});
// Bind a function to the progress bar so the user can select a point in the video
$that.find('.progress').bind('mousedown', function(e) {
// Progress bar is being clicked
$mclicking = true;
// If video is playing then pause while we change time of the video
if($playing == true) {
$spc.pause();
}
// The x position of the mouse in the progress bar
x = e.pageX - $that.find('.progress').offset().left;
// Update current time
currentTime = (x / progWidth) * $duration;
$spc.currentTime = currentTime;
});
// When the user clicks on the volume bar holder, initiate the volume change event
$that.find('.volume-bar-holder').bind('mousedown', function(e) {
// Clicking of volume is true
$vclicking = true;
// Y position of mouse in volume slider
y = $that.find('.volume-bar-holder').height() - (e.pageY - $that.find('.volume-bar-holder').offset().top);
// Return false if user tries to click outside volume area
if(y < 0 || y > $(this).height()) {
$vclicking = false;
return false;
}
// Update CSS to reflect what's happened
$that.find('.volume-bar').css({'height' : y+'px'});
$that.find('.volume-button').css({'top' : (y-($that.find('.volume-button').height()/2))+'px'});
// Update some variables
$spc.volume = $that.find('.volume-bar').height() / $(this).height();
$storevol = $that.find('.volume-bar').height() / $(this).height();
$volume = $that.find('.volume-bar').height() / $(this).height();
// Run a little animation for the volume icon.
volanim();
});
// A quick function for binding the animation of the volume icon
var volanim = function() {
// Check where volume is and update class depending on that.
for(var i = 0; i < 1; i += 0.1) {
var fi = parseInt(Math.floor(i*10)) / 10;
var volid = (fi * 10)+1;
if($volume == 1) {
if($volhover == true) {
$that.find('.volume-icon').removeClass().addClass('volume-icon volume-icon-hover v-change-11');
} else {
$that.find('.volume-icon').removeClass().addClass('volume-icon v-change-11');
}
}
else if($volume == 0) {
if($volhover == true) {
$that.find('.volume-icon').removeClass().addClass('volume-icon volume-icon-hover v-change-1');
} else {
$that.find('.volume-icon').removeClass().addClass('volume-icon v-change-1');
}
}
else if($volume > (fi-0.1) && volume < fi && !$that.find('.volume-icon').hasClass('v-change-'+volid)) {
if($volhover == true) {
$that.find('.volume-icon').removeClass().addClass('volume-icon volume-icon-hover v-change-'+volid);
} else {
$that.find('.volume-icon').removeClass().addClass('volume-icon v-change-'+volid);
}
}
}
}
// Run the volanim function
volanim();
// Check if the user is hovering over the volume button
$that.find('.volume').hover(function() {
$volhover = true;
}, function() {
$volhover = false;
});
// For usability purposes then bind a function to the body assuming that the user has clicked mouse
// down on the progress bar or volume bar
$('body, html').bind('mousemove', function(e) {
// Hide the player if video has been played and user hovers away from video
if($begin == true) {
$that.hover(function() {
$that.find('.player').stop(true, false).animate({'opacity' : '1'}, 0.5);
}, function() {
$that.find('.player').stop(true, false).animate({'opacity' : '0'}, 0.5);
});
}
// For the progress bar controls
if($mclicking == true) {
// Dragging is happening
$draggingProgress = true;
// The thing we're going to apply to the CSS (changes based on conditional statements);
var progMove = 0;
// Width of the progress button (a little button at the end of the progress bar)
var buttonWidth = $that.find('.progress-button').width();
// Updated x posititon the user is at
x = e.pageX - $that.find('.progress').offset().left;
// If video is playing
if($playing == true) {
// And the current time is less than the duration
if(currentTime < $duration) {
// Then the play-pause icon should definitely be a pause button
$that.find('.play-pause').addClass('pause').removeClass('play');
}
}
if(x < 0) { // If x is less than 0 then move the progress bar 0px
progMove = 0;
$spc.currentTime = 0;
}
else if(x > progWidth) { // If x is more than the progress bar width then set progMove to progWidth
$spc.currentTime = $duration;
progMove = progWidth;
}
else { // Otherwise progMove is equal to the mouse x coordinate
progMove = x;
currentTime = (x / progWidth) * $duration;
$spc.currentTime = currentTime;
}
// Change CSS based on previous conditional statement
$that.find('.progress-bar').css({'width' : $progMove+'px'});
$that.find('.progress-button').css({'left' : ($progMove-buttonWidth)+'px'});
}
// For the volume controls
if($vclicking == true) {
// The position of the mouse on the volume slider
y = $that.find('.volume-bar-holder').height() - (e.pageY - $that.find('.volume-bar-holder').offset().top);
// The position the user is moving to on the slider.
var volMove = 0;
// If the volume holder box is hidden then just return false
if($that.find('.volume-holder').css('display') == 'none') {
$vclicking = false;
return false;
}
// Add the hover class to the volume icon
if(!$that.find('.volume-icon').hasClass('volume-icon-hover')) {
$that.find('.volume-icon').addClass('volume-icon-hover');
}
if(y < 0 || y == 0) { // If y is less than 0 or equal to 0 then volMove is 0.
$volume = 0;
volMove = 0;
$that.find('.volume-icon').removeClass().addClass('volume-icon volume-icon-hover v-change-11');
} else if(y > $(this).find('.volume-bar-holder').height() || (y / $that.find('.volume-bar-holder').height()) == 1) { // If y is more than the height then volMove is equal to the height
$volume = 1;
volMove = $that.find('.volume-bar-holder').height();
$that.find('.volume-icon').removeClass().addClass('volume-icon volume-icon-hover v-change-1');
} else { // Otherwise volMove is just y
$volume = $that.find('.volume-bar').height() / $that.find('.volume-bar-holder').height();
volMove = y;
}
// Adjust the CSS based on the previous conditional statmeent
$that.find('.volume-bar').css({'height' : volMove+'px'});
$that.find('.volume-button').css({'top' : (volMove+$that.find('.volume-button').height())+'px'});
// Run the animation function
volanim();
// Change the volume and store volume
// Store volume is the volume the user last had in place
// in case they want to mute the video, unmuting will then
// return the user to their previous volume.
$spc.volume = $volume;
$storevol = $volume;
}
// If the user hovers over the volume controls, then fade in or out the volume
// icon hover class
if($volhover == false) {
$that.find('.volume-holder').stop(true, false).fadeOut(100);
$that.find('.volume-icon').removeClass('volume-icon-hover');
}
else {
$that.find('.volume-icon').addClass('volume-icon-hover');
$that.find('.volume-holder').fadeIn(100);
}
})
// When the video ends the play button becomes a pause button
$spc.addEventListener('ended', function() {
$playing = false;
// If the user is not dragging
if($draggingProgress == false) {
$that.find('.play-pause').addClass('play').removeClass('pause');
}
});
// If the user clicks on the volume icon, mute the video, store previous volume, and then
// show previous volume should they click on it again.
$that.find('.volume-icon').bind('mousedown', function() {
$volume = $spc.volume; // Update volume
// If volume is undefined then the store volume is the current volume
if(typeof $storevol == 'undefined') {
$storevol = $spc.volume;
}
// If volume is more than 0
if($volume > 0) {
// then the user wants to mute the video, so volume will become 0
$spc.volume = 0;
$volume = 0;
$that.find('.volume-bar').css({'height' : '0'});
volanim();
}
else {
// Otherwise user is unmuting video, so volume is now store volume.
$spc.volume = $storevol;
$volume = $storevol;
$that.find('.volume-bar').css({'height' : ($storevol*100)+'%'});
volanim();
}
});
// If the user lets go of the mouse, clicking is false for both volume and progress.
// Also the video will begin playing if it was playing before the drag process began.
// We're also running the bufferLength function
$('body, html').bind('mouseup', function(e) {
$mclicking = false;
$vclicking = false;
$draggingProgress = false;
if($playing == true) {
$spc.play();
}
bufferLength();
});
// Check if fullscreen supported. If it's not just don't show the fullscreen icon.
if(!$spc.requestFullscreen && !$spc.mozRequestFullScreen && !$spc.webkitRequestFullScreen) {
$('.fullscreen').hide();
}
// Requests fullscreen based on browser.
$('.fullscreen').click(function() {
if ($spc.requestFullscreen) {
$spc.requestFullscreen();
}
else if ($spc.mozRequestFullScreen) {
$spc.mozRequestFullScreen();
}
else if ($spc.webkitRequestFullScreen) {
$spc.webkitRequestFullScreen();
}
});
});
});
}
})(jQuery);
I would also like to point out that this is someone else source code and cannot find where i got this from.
https://jsfiddle.net/f39huqpv/
I'm trying to create a simple metronome using the web audio oscillator, so that no external audio files are needed. I'm creating the sound of the metronome by ramping the volume of the oscillator up and down very quickly (since you can't use start() and stop() more than once), and then repeating that function at a set interval. It ends up sounding like a nice little wood block.
The code below works/sounds great in Chrome, Safari and Opera. But in Firefox, there's a nasty intermittent "click" when the volume ramps up. I've tried changing the attack/release times to get rid of the click, but they have to be really, really long before it consistently disappears. So long, in fact, that the oscillator just sounds like a sustained note.
var audio = new (window.AudioContext || window.webkitAudioContext)();
var tick = audio.createOscillator();
var tickVol = audio.createGain();
tick.type = 'sine';
tick.frequency.value = 1000;
tickVol.gain.value = 0; //setting the volume to 0 before I connect everything
tick.connect(tickVol);
tickVol.connect(audio.destination);
tick.start(0);
var metronome = {
start: function repeat() {
now = audio.currentTime;
//Make sure volume is 0 and that no events are changing it
tickVol.gain.cancelScheduledValues(now);
tickVol.gain.setValueAtTime(0, now);
//Play the osc with a super fast attack and release so it sounds like a click
tickVol.gain.linearRampToValueAtTime(1, now + .001);
tickVol.gain.linearRampToValueAtTime(0, now + .001 + .01);
//Repeat this function every half second
click = setTimeout(repeat, 500);
},
stop: function() {
if(typeof click !== 'undefined') {
clearTimeout(click);
tickVol.gain.value = 0;
}
}
}
$("#start").click(function(){
metronome.start();
});
$("#stop").click(function(){
metronome.stop();
});
Codepen
Is there any way to get FF to sound like the other 3 browsers?
I was getting the exact same problem in latest Opera and found the problem to be the individual sounds 'decimal time length'.
I wrote a morse code translator, and like yours, it's just a series of simple short sounds/beeps created via createOscillator.
With morse code you have a speed count (words per minute) based on a 5 letter long word like codex or paris.
To get 20 or 30 paris' per minute to finish exactly on the minute, I had to use a sound time length of, for example, 0.61. In Opera, this caused the 'end of sound click'. On changing this to 0.6 and the click disappeared across all browsers - except Firefox.
I've tried freq = 0 and gain = 0 between sounds but still get the click at the end in FF and I don't know enough about Web Audio to try anything else.
On another note, I noticed you're using a loop and timeout to get to the next tick. Have you tried an 'Oscillator onended function' instead? I've used it with a simple counter increment and variable length blank sound/note. Go to the very end of my JS if you want to have a look.
**UPDATE - I've been fiddling about with setValueAtTime() and linearRampToValueAtTime() and appeared to have cracked the click problem. Scroll to bottom of script to see example. **
(function(){
/* Morse Code Generator & Translator - Kurt Grigg 2003 (Updated for sound and CSS3) */
var d = document;
d.write('<div class="Mcontainer">'
+'<div class="Mtitle">Morse Code Generator Translator</div>'
+'<textarea id="txt_in" class="Mtxtarea"></textarea>'
+'<div class="Mtxtareatitle">Input</div>'
+'<textarea id="txt_out" class="Mtxtarea" style="top: 131px;"></textarea>'
+'<div class="Mtxtareatitle" style="top: 172px;">Output</div>'
+'<div class="Mbuttonwrap">'
+'<input type="button" class="Mbuttons" id="how" value="!">'
+'<input type="button" class="Mbuttons" id="tra" value="translate">'
+'<input type="button" class="Mbuttons" id="ply" value="play">'
+'<input type="button" class="Mbuttons" id="pau" value="pause">'
+'<input type="button" class="Mbuttons" id="res" value="reset"></div>'
+'<select id="select" class="Mselect">'
+'<option value=0.07 selected="selected">15 wpm</option>'
+'<option value=0.05>20 wpm</option>'
+'<option value=0.03>30 wpm</option>'
+'</select>'
+'<div class="sliderWrap">volume <input id="volume" type="range" min="0" max="1" step="0.01" value="0.05"/></div>'
+'<div class="Mchckboxwrap">'
+'<span style="text-align: right;">separator <input type="checkbox" id="slash" class="Mchckbox"></span>'
+'</div>'
+'<div id="about" class="Minfo">'
+'<b>Input morse</b><br>'
+'<ul><li>Enter morse into input box using full stop (period) and minus sign (hyphen)</li>'
+'<li>Morse letters must be separated by 1 space</li>'
+'<li>Morse words must be separated by 3 or more spaces</li>'
+'<li>You can use / to separate morse words. There must be at least 1 space before and after each separator used</li>'
+'</ul>'
+'<b>Input text</b><br>'
+'<ul class="Mul"><li>Enter text into input box</li>'
+'<li>Characters that cannot be translated will be ignored</li>'
+'<li>If morse and text is entered, the converter will assume morse mode</li></ul>'
+'<input type="button" value="close" id="clo" class="Mbuttons">'
+'</div><div id="mdl" class="modal"><div id="bdy"><div id="modalMsg">A MSG</div><input type="button" value="close" id="cls" class="Mbuttons"></div></div></div>');
var ftmp = d.getElementById('mdl');
var del;
d.getElementById('tra').addEventListener("click", function(){convertToAndFromMorse(txtIn.value);},false);
d.getElementById('ply').addEventListener("click", function(){CancelIfPlaying();},false);
d.getElementById('pau').addEventListener("click", function(){stp();},false);
d.getElementById('res').addEventListener("click", function(){Rst();txtIn.value = '';txtOt.value = '';},false);
d.getElementById('how').addEventListener("click", function(){msgSelect();},false);
d.getElementById('clo').addEventListener("click", function(){fadeOut();},false);
d.getElementById('cls').addEventListener("click", function(){fadeOut();},false);
d.getElementById('bdy').addEventListener("click", function(){errorSelect();},false);
var wpm = d.getElementById('select');
wpm.addEventListener("click", function(){wpMin()},false);
var inc = 0;
var playing = false;
var txtIn = d.getElementById('txt_in');
var txtOt = d.getElementById('txt_out');
var paused = false;
var allowed = ['-','.',' '];
var aud;
var tmp = (window.AudioContext || window.webkitAudioContext)?true:false;
if (tmp) {
aud = new (window.AudioContext || window.webkitAudioContext)();
}
var incr = 0;
var speed = parseFloat(wpm.options[wpm.selectedIndex].value);
var char = [];
var alphabet = [["A",".-"],["B","-..."],["C","-.-."],["D","-.."],["E","."],["F","..-."],["G","--."],["H","...."],["I",".."],["J",".---"],
["K","-.-"],["L",".-.."],["M","--"],["N","-."],["O","---"],["P",".--."],["Q","--.-"],["R",".-."],["S","..."],["T","-"],["U","..-"],
["V","...-"],["W",".--"],["X","-..-"],["Y","-.--"],["Z","--.."],["1",".----"],["2","..---"],["3","...--"],["4","....-"],["5","....."],
["6","-...."],["7","--..."],["8","---.."],["9","----."],["0","-----"],[".",".-.-.-"],[",","--..--"],["?","..--.."],["'",".----."],["!","-.-.--"],
["/","-..-."],[":","---..."],[";","-.-.-."],["=","-...-"],["-","-....-"],["_","..--.-"],["\"",".-..-."],["#",".--.-."],["(","-.--.-"],[" ",""]];
function errorSelect() {
txtIn.focus();
}
function modalSwap(msg) {
d.getElementById('modalMsg').innerHTML = msg;
}
function msgSelect() {
ftmp = d.getElementById('about');
fadeIn();
}
function fadeIn() {
ftmp.removeEventListener("transitionend", freset);
ftmp.style.display = "block";
del = setTimeout(doFadeIn,100);
}
function doFadeIn() {
clearTimeout(del);
ftmp.style.transition = "opacity 0.5s linear";
ftmp.style.opacity = "1";
}
function fadeOut() {
ftmp.style.transition = "opacity 0.8s linear";
ftmp.style.opacity = "0";
ftmp.addEventListener("transitionend",freset , false);
}
function freset() {
ftmp.style.display = "none";
ftmp.style.transition = "";
ftmp = d.getElementById('mdl');
}
function stp() {
paused = true;
}
function wpMin() {
speed = parseFloat(wpm.options[wpm.selectedIndex].value);
}
function Rst(){
char = [];
inc = 0;
playing = false;
paused = false;
}
function CancelIfPlaying(){
if (window.AudioContext || window.webkitAudioContext) {paused = false;
if (!playing) {
IsReadyToHear();
}
else {
return false;
}
}
else {
modalSwap("<p>Your browser doesn't support Web Audio API</p>");
fadeIn();
return false;
}
}
function IsReadyToHear(x){
if (txtIn.value == "" || /^\s+$/.test(txtIn.value)) {
modalSwap('<p>Nothing to play, enter morse or text first</p>');
fadeIn();
txtIn.value = '';
return false;
}
else if (char.length < 1 && (x != "" || !/^\s+$/.test(txtIn.value)) && txtIn.value.length > 0) {
modalSwap('<p>Click Translate button first . . .</p>');
fadeIn();
return false;
}
else{
playMorse();
}
}
function convertToAndFromMorse(x){
var swap = [];
var outPut = "";
x = x.toUpperCase();
/* Is input empty or all whitespace? */
if (x == '' || /^\s+$/.test(x)) {
modalSwap("<p>Nothing to translate, enter morse or text</p>");
fadeIn();
txtIn.value = '';
return false;
}
/* Remove front & end whitespace */
x = x.replace(/\s+$|^\s*/gi, '');
txtIn.value = x;
txtOt.value = "";
var isMorse = (/(\.|\-)\.|(\.|\-)\-/i.test(x));// Good enough.
if (!isMorse){
for (var i = 0; i < alphabet.length; i++){
swap[i] = [];
for (var j = 0; j < 2; j++){
swap[i][j] = alphabet[i][j].replace(/\-/gi, '\\-');
}
}
}
var swtch1 = (isMorse) ? allowed : swap;
var tst = new RegExp( '[^' + swtch1.join('') + ']', 'g' );
var swtch2 = (isMorse)?' ':'';
x = x.replace( tst, swtch2); //remove unwanted chars.
x = x.split(swtch2);
if (isMorse) {
var tidy = [];
for (var i = 0; i < x.length; i++){
if ((x[i] != '') || x[i+1] == '' && x[i+2] != '') {
tidy.push(x[i]);
}
}
}
var swtch3 = (isMorse) ? tidy : x;
for (var j = 0; j < swtch3.length; j++) {
for (var i = 0; i < alphabet.length; i++){
if (isMorse) {
if (tidy[j] == alphabet[i][1]) {
outPut += alphabet[i][0];
}
}
else {
if (x[j] == alphabet[i][0]) {
outPut += alphabet[i][1] + ((j < x.length-1)?" ":"");
}
}
}
}
if (!isMorse) {
var wordDivide = (d.getElementById('slash').checked)?" / ":" ";
outPut = outPut.replace(/\s{3,}/gi, wordDivide);
}
if (outPut.length < 1) {
alert('Enter valid text or morse...');
txtIn.value = '';
}
else {
txtOt.value = outPut;
}
var justMorse = (!isMorse) ? outPut : tidy;
FormatForSound(justMorse);
}
function FormatForSound(s){
var n = [];
var b = '';
if (typeof s == 'object') {
for (var i = 0; i < s.length; ++i) {
var f = (i == s.length-1)?'':' ';
var t = b += (s[i] + f);
}
}
var c = (typeof s == 'object')? t : s;
c = c.replace(/\//gi, '');
c = c.replace(/\s{1,3}/gi, '4');
c = c.replace(/\./gi, '03');
c = c.replace(/\-/gi, '13');
c = c.split('');
for (var i = 0; i < c.length; i++) {
n.push(c[i]);
}
char = n;
}
function vlm() {
return document.getElementById('volume').value;
}
function playMorse() {
if (paused){
playing = false;
return false;
}
playing = true;
if (incr >= char.length) {
incr = 0;
playing = false;
paused = false;
return false;
}
var c = char[incr];
var freq = 550;
var volume = (c < 2) ? vlm() : 0 ;
var flen = (c == 0 || c == 3) ? speed : speed * 3;
var osc = aud.createOscillator();
osc.type = 'sine';
osc.frequency.value = freq;
var oscGain = aud.createGain();
oscGain.gain.value = volume;
osc.connect(oscGain);
oscGain.connect(aud.destination);
var now = aud.currentTime;
osc.start(now);
/*
Sharp volume fade to stop harsh clicks if wave is stopped
at a point other than the (natural zero crossing point)
*/
oscGain.gain.setValueAtTime(volume, now + (flen*0.8));
oscGain.gain.linearRampToValueAtTime(0.0, now + (flen*0.9999));
osc.stop(now + flen);
osc.onended = function() {
incr++;
playMorse();
}
}
})();
body {
text-align: center;
}
.Mcontainer {
display: inline-block;
position: relative;
width: 382px;
height: 302px;
border: 1px solid #000;
border-radius: 6px;
text-align: center;
font: bold 11px sans-serif;
background-color: rgb(203,243,65);
box-shadow: 0px 4px 2px rgba(0,0,0,0.3);
}
.Mtitle {
-webkit-user-select: none;
-moz-user-select: none;
display: inline-block;
position: absolute;
width: 380px;
height: 20px;
margin: auto;
left: 0; right: 0;
font-size: 16px;
line-height: 20px;
color: #666;
}
.Mtxtareatitle {
-webkit-user-select: none;
-moz-user-select: none;
display: block;
position: absolute;
top: 60px;
left: -36px;
height: 22px;
width: 106px;
font-size: 18px;
line-height: 22px;
text-align: center;
color: #555;
transform: rotate(-90deg);
}
.Mtxtarea {
display: block;
position: absolute;
top: 18px;
margin: auto;
left: 0; right: 0;
height: 98px;
width: 344px;
border: 0.5px solid #000;
border-radius: 6px;
padding-top: 6px;
padding-left: 24px;
resize: none;
background-color: #fffff0;
font: bold 10px courier;
color: #555;
text-transform: uppercase;
overflow: auto;
outline: 0; box-shadow: inset 0px 2px 5px rgba(0,0,0,0.5);
}
.Minfo {
display: none;
position: absolute;
top: -6px; left:-6px;
padding: 6px;
height: auto;
width: 370px;
text-align: left;
border: 0.5px solid #000;
border-radius: 6px;
box-shadow: 0px 4px 2px rgba(0,0,0,0.3);
background-color: rgb(203,243,65);
font: 11px sans-serif;
color: #555;
opacity: 0;
}
.Mbuttonwrap {
display: block;
position: absolute;
top: 245px;
margin: auto;
left: 0; right: 0;
height: 26px;
width: 100%;
}
.Mbuttons {
display: inline-block;
width: 69px;
height: 22px;
border: none;
margin: 0px 3.1px 0px 3.1px;
background-color: transparent;
font: bold 11px sans-serif;
color: #555;
border-radius: 20px;
cursor: pointer;
box-shadow: 0px 2px 2px rgba(0,0,0,0.5);
outline: 0;
}
.Mbuttons:hover {
background-color: rgb(213,253,75);
}
.Mbuttons:active {
position: relative;
top: 1px;
box-shadow: 0px 1px 2px rgba(0,0,0,0.8);
}
.Mchckboxwrap {
display: block;
position: absolute;
top: 274px;
left: 289px;
width: 87px;
height: 21px;
line-height: 22px;
border: 0.5px solid #000;
color: #555;
background: #fff;
-webkit-user-select: none;
-moz-user-select: none;
}
.Mselect {
display: block;
position: absolute;
top: 274px;
left: 6px;
width: 88px;
height: 22px;
border: 0.5px solid #000;
padding-left: 5%;
background: #fff;
font: bold 11px sans-serif;
color: #555;
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
outline: 0;
}
::selection {
color: #fff;
background: #555;
}
.Mchckbox {
margin-top: 1px;
vertical-align: middle;
cursor: pointer;
outline: 0;
}
.modal {
display: none;
position: absolute;
margin: auto;
top: 0;right: 0;bottom: 0;left: 0;
background: rgba(0,0,0,0.5);
-webkit-user-select: none;
-moz-user-select: none;
opacity: 0;
text-align: center;
}
.modal > div {
display: inline-block;
position: relative;
width: 250px;
height: 70px;
margin: 10% auto;
padding: 10px;
border: 0.5px solid #000;
border-radius:6px;
background-color: rgb(203,243,65);
font: bold 11px sans-serif;
color: #555;
box-shadow: 4px 4px 2px rgba(0,0,0,0.3);
text-align: center;
}
.sliderWrap {
display: block;
position: absolute;
top: 274px;
margin:auto;padding: 0;
left: 0; right: 0;
width: 184px;
height: 21px;
border: 0.5px solid #000;
background: #fff;
font: bold 11px sans-serif;
color: #555;
line-height: 21px;
text-align: center;
-webkit-appearance: none;
-moz-appearance: none;
appearance: none;
outline: 0;
}
input[type=range] {
-webkit-appearance: none;
width: 50%;
margin: 0;padding: 0;
vertical-align: middle;
}
input[type=range]:focus {
outline: none;
}
input[type=range]::-webkit-slider-runnable-track {
width: 100%;
height: 4px;
cursor: pointer;
background: #666;
}
input[type=range]::-webkit-slider-thumb {
box-shadow: 1px 1px 0.5px rgba(0, 0, 0, 0.5);
border: none;
height: 10px;
width: 20px;
border-radius: 5px;
background: #ffffff;
cursor: pointer;
-webkit-appearance: none;
margin-top: -3px;
}
input[type=range]:focus::-webkit-slider-runnable-track {
background: #666;
}
input[type=range]::-moz-range-track {
width: 100%;
height: 4px;
cursor: pointer;
background: #666;
}
input[type=range]::-moz-range-thumb {
box-shadow: 1px 1px 0.5px rgba(0, 0, 0, 0.5);
height: 10px;
width: 20px;
border: none;
border-radius: 5px;
background: #ffffff;
cursor: pointer;
}
input[type=range]::-ms-thumb {
height: 10px;
width: 20px;
border: none;
border-radius: 5px;
background: #ffffff;
box-shadow: 1px 1px 0.5px rgba(0, 0, 0, 0.5);
cursor: pointer;
}
input[type=range]::-ms-track {
width: 100%;
height: 4px;
cursor: pointer;
background: transparent;
border: 5px solid transparent;
color: transparent;
}
input[type=range]::-ms-fill-lower {
background: #666;
}
input[type=range]::-ms-fill-upper {
background: #666;
}
::-ms-tooltip {
display: none;
}
select::-ms-expand {
display: none;
}
It would be best to get Firefox to fix the issue (if indeed it is a Firefox bug with automations). Having said that, you could probably make all the browsers be consistent by using an AudioBufferSource node that has a precomputed click waveform that you want. Just generate a sine wave, ramp it up and down as you want (manually) and play that back at regular intervals.
Not great, but it should be cross-platform.
AFAIK this issue is not specific to Firefox, although looking at your code, I'm unsure why it doesn't happen in other browsers.
The problem is that the moment you schedule a *rampToValueAtTime to an audible source when that source is not currently interpolating between two ramp points, the "clicking" sound occurrs, possibly due to how the underlying implementation will immediately start taking the new ramp point into consideration, even if it's scheduled to happen the future.
The clicking sound will also be heard if you schedule a new ramp point between two points between which interpolation is occurring.
What I came up with as a workaround solution is either using an alternative approach to gradually changing AudioParam values, setTargetAtTime, or setting the value property of the AudioParam to the first ramp point value. Not setValueAtTime, but assigning to the value property itself, before anything audible happens on the given branch.
setTargetAtTime
You'll be needing neither cancelScheduledValues nor setValueAtTime, just two calls to setTargetAtTime, which is just a setValueAtTime with an exponential interpolation with a specified length.
var metronome = {
start: function repeat() {
now = audio.currentTime;
//Play the osc with a super fast attack and release so it sounds like a click
tickVol.gain.setTargetAtTime(1, now, 0.01);
tickVol.gain.setTargetAtTime(0, now + 0.01, 0.01);
//Repeat this function every half second
click = setTimeout(repeat, 500);
}
}
Live demo on JSFiddle