css Audio - Active file-generic CSS - Active Generic - Active HTML - Active JS - Active SVG - Active Text - Active file-generic Video - Active header Love html icon-new-collection icon-person icon-team numbered-list123 pop-out spinner split-screen star tv

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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <div class="container">
  <div class="waveforms">
    <div class="waveform active" data-wave="sine">
      <svg xmlns="http://www.w3.org/2000/svg" width="325" height="54" viewBox="0 0 325 54" xmlns:xlink="http://www.w3.org/1999/xlink">
        <defs>
          <linearGradient id="a" x1="2.491%" y1="0%" y2="91.333%">
            <stop stop-color="#F7FAFD" offset="0%"/>
            <stop stop-color="#F7F8FA" offset="100%"/>
          </linearGradient>
          <rect id="b" width="325.084" height="54.602" rx="2"/>
          <linearGradient id="purple" x1="18.652%" x2="89.546%" y1="0%" y2="104.612%">
            <stop stop-color="#EE538D" offset="0%"/>
            <stop stop-color="#D61BD5" offset="100%"/>
          </linearGradient>
        </defs>
        <g fill="none" fill-rule="evenodd">
          <rect width="325" height="54" fill="url(#a)" rx="2"/>
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        </g>
      </svg>
    </div>
    <div class="waveform" data-wave="square">
      <svg xmlns="http://www.w3.org/2000/svg" width="325" height="54" viewBox="0 0 325 54">
        <defs>
          <linearGradient id="a" x1="2.491%" y1="0%" y2="91.333%">
            <stop stop-color="#F7FAFD" offset="0%"/>
            <stop stop-color="#F7F8FA" offset="100%"/>
          </linearGradient>
          <linearGradient id="green" x1="9.348%" x2="93.296%" y1="5.486%" y2="107.677%">
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          </linearGradient>
        </defs>
        <g fill="none" fill-rule="evenodd">
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        </g>
      </svg>
    </div>
  </div>
  <div class="waveforms">
    <div class="waveform" data-wave="triangle">
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        <defs>
          <linearGradient id="a" x1="2.491%" y1="0%" y2="91.333%">
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            <stop stop-color="#785FCA" offset="0%"/>
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          </linearGradient>
        </defs>
        <g fill="none" fill-rule="evenodd">
          <rect width="325" height="54" fill="url(#a)" rx="2"/>
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      </svg>
    </div>
    <div class="waveform" data-wave="sawtooth">
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        <defs>
          <linearGradient id="a" x1="2.491%" y1="0%" y2="91.333%">
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          <linearGradient id="orange" x1="5.665%" y1="0%" y2="100%">
            <stop stop-color="#FF3D00" offset="0%"/>
            <stop stop-color="#E57701" offset="100%"/>
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        </defs>
        <g fill="none" fill-rule="evenodd">
          <rect width="325" height="54" x="1" fill="url(#a)" rx="2"/>
          <path stroke="#979797" d="M54.695 53.77V.45M2.39 27.34h322.75M2.39 9.437h322.75M2.39 45.242h322.75M108.987 54.22V0M163.317 54.22V0M217.648 54.22V0M271.978 54.22V0" stroke-dasharray="1,1"/>
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        </g>
      </svg>
    </div>
  </div>
  <a class="button" id="play">Play</a>
</div>
            
          
!
            
              body {
  margin: 0;
  background-color: #464646;
}

svg {
  display: block;
}

.container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 100%;
}

.waveforms {
  display: flex;
  width: 688px;
  justify-content: space-between;
  margin: 8px 0;
  .waveform {
    border: 3px solid transparent;
    cursor: pointer;
    &.active {
      border: 3px solid #50B9FF;
      border-radius: 2px;
      background-color: #f7f9fb;
    }
  }
}

@keyframes visualize {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-108px);
  }
}

.animated {
  animation: visualize 0.2s linear infinite;
  animation-play-state: paused;
}

.playing .active .animated {
  animation-play-state: running;
}

.button {
  margin-top: 8px;
  height: 36px;
  padding: 8px 30px;
  border-radius: 18px;
  background-color: #44BFA3;
  box-sizing: border-box;
  cursor: pointer;
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  color: #fff;
  font-size: 20px;
  line-height: 20px;
  &:hover {
    background-color: lighten(#44BFA3, 5%);
  }
}

html, body {
  height: 100%;
}
            
          
!
            
              class Sound {
  
  constructor(context) {
    this.context = context;
  }
  
  init() {
    this.oscillator = this.context.createOscillator();
    this.gainNode = this.context.createGain();

    this.oscillator.connect(this.gainNode);
    this.gainNode.connect(this.context.destination);
  }

  play(value) {
    this.init();

    this.gainNode.gain.setValueAtTime(0.5, this.context.currentTime);
            
    this.oscillator.start();
  }
  
  stop() {
    this.gainNode.gain.exponentialRampToValueAtTime(0.001, this.context.currentTime + 1);
    this.oscillator.stop(this.context.currentTime + 1);
  }
 
}  

var context = new AudioContext();
var sound = new Sound(context);
sound.init();
var wave = 'sine';
var state = 'paused';

var buttons = document.querySelectorAll('.waveform');
var playBtn = document.querySelector('#play');
var container = document.querySelector('.container');
buttons.forEach(function(button) {
  button.addEventListener('click', function() {           
    cleanClass('active');
    wave = button.dataset.wave;
    sound.oscillator.type = wave;
    button.classList.add('active');
  })
})

playBtn.addEventListener('click', function(){
  container.classList.toggle('playing');
  
  if(playBtn.text == 'Play') {
    sound.play();
    sound.oscillator.type = wave;
    playBtn.text = 'Pause';
  } else {
    sound.stop();
    playBtn.text = 'Play';
  }
})

function cleanClass(rclass) {
  buttons.forEach(function(button) {
    button.classList.remove(rclass);
  })
}
            
          
!
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