Online Sequencer Forums

This will have a great impact on your creativity:



What else can you come up with?

very nice

Is it possible to come up with a code to reverse play sound files..?

looɔ ǝq plnoʍ ʇɐɥʇ


Meh...

Very useful, thank you

(07-11-2018, 05:22 PM)Jacob_ Wrote: [ -> ]This will have a great impact on your creativity:

Code:

j = 0;
window.setInterval(function() {
    for (var i = 0; i < settings['numInstruments']; i++) {
        settings['instrumentColors'][i] = [Math.floor(Math.random() * 255), Math.floor(Math.random() * 255), Math.floor(Math.random() * 255)];
    };
    SequencerView.repaint();
    $('canvas').css('filter', 'blur(' + (Math.sin(j) * 8) + 'px)');
    j += 0.1;
}, 100);

What else can you come up with?

This is even better, it directly boosts creativity!

This will download all the notes to your brain, boosting productivity via caching. You have to wait for all the notes to load though, so be patient.

(07-19-2018, 06:52 PM)Frank Wrote: [ -> ]

Code:

for (var inst = 0; inst < settings.numInstruments; inst = inst == 12 ? 17 : inst + 1) {
   loadInstrument(inst);
}
var id = setInterval(function() {
   if (Object.keys(audioSystem.sounds).length == 36) {
       clearInterval(id)
       for (var inst = 0; inst < settings.numInstruments; inst = inst == 12 ? 17 : inst + 1) {
           var source = audioSystem.audioContext.createBufferSource();
           source.buffer = audioSystem.sounds[inst];
           source.connect(audioSystem.gainNodes[inst]);
           source.start(audioSystem.audioContext.currentTime, 0, (72 - settings.min[inst]) * 30 / settings.originalBpm[inst]);
           delete source;
       }
   }
}, 100)

This will download all the notes to your brain, boosting productivity via caching. You have to wait for all the notes to load though, so be patient.

I could have used isSynthInstrument but I am too lazy to update.

(10-16-2018, 04:54 PM)Jacob_ Wrote: [ -> ]

Code:

loadInstrument(13);
var el = $('<input type="file" accept="audio/*">');
$(document.body).append(el);

el.on('change', function(e){
   var reader = new FileReader();
   reader.onload = function (e) {
       var context = new AudioContext();
       context.decodeAudioData(e.target.result, function(buffer){
           var node = context.createAnalyser();
           var resolution = 4;
           node.fftSize = 4096;
           node.smoothingTimeConstant = 0;
           var bufferLength = node.frequencyBinCount;
           var dataArray = new Uint8Array(bufferLength);
           var audioSource = context.createBufferSource();
           audioSource.buffer = buffer;
           audioSource.loop = false;
           audioSource.connect(node);
           var time = 0;
           audioSource.start(0);  
           setInterval(function(){
               node.getByteFrequencyData(dataArray);
               var f = [];
               for (var i = 1; i < dataArray.length - 1; i++) {
                 var isPeak = dataArray[i] >= dataArray[i-1] && dataArray[i] >= dataArray[i+1];
                 if (isPeak) {
                   f.push([i, dataArray[i]]);
                 }
               }
               f.sort(function(a, b){return b[1] - a[1]});
               for(var i = 0; i < Math.min(f.length, 4); i++) {
                 var frequency = f[i][0] * context.sampleRate / node.fftSize;
                 var note = piano[Math.round((piano.length*Math.log(2)+12*Math.log(55/frequency)+Math.log(4))/(Math.log(2)))];
                 if (note != undefined && f[i][1] > 32) {
                   song.addNote(new Note(song, note, time/resolution, 1/resolution, 13));
                 }
               }
               time++;
           }, song.sleepTime/resolution);
           setInterval(SequencerView.repaint, 1000);
       });
   }
   
   reader.readAsArrayBuffer(e.target.files[0]);
});

el.click();

this is dank

(10-16-2018, 05:07 PM)blobertthebob Wrote: [ -> ]

(10-16-2018, 04:54 PM)Jacob_ Wrote: [ -> ]

Code:

loadInstrument(13);
var el = $('<input type="file" accept="audio/*">');
$(document.body).append(el);

el.on('change', function(e){
   var reader = new FileReader();
   reader.onload = function (e) {
       var context = new AudioContext();
       context.decodeAudioData(e.target.result, function(buffer){
           var node = context.createAnalyser();
           var resolution = 4;
           node.fftSize = 4096;
           node.smoothingTimeConstant = 0;
           var bufferLength = node.frequencyBinCount;
           var dataArray = new Uint8Array(bufferLength);
           var audioSource = context.createBufferSource();
           audioSource.buffer = buffer;
           audioSource.loop = false;
           audioSource.connect(node);
           var time = 0;
           audioSource.start(0);  
           setInterval(function(){
               node.getByteFrequencyData(dataArray);
               var f = [];
               for (var i = 1; i < dataArray.length - 1; i++) {
                 var isPeak = dataArray[i] >= dataArray[i-1] && dataArray[i] >= dataArray[i+1];
                 if (isPeak) {
                   f.push([i, dataArray[i]]);
                 }
               }
               f.sort(function(a, b){return b[1] - a[1]});
               for(var i = 0; i < Math.min(f.length, 4); i++) {
                 var frequency = f[i][0] * context.sampleRate / node.fftSize;
                 var note = piano[Math.round((piano.length*Math.log(2)+12*Math.log(55/frequency)+Math.log(4))/(Math.log(2)))];
                 if (note != undefined && f[i][1] > 32) {
                   song.addNote(new Note(song, note, time/resolution, 1/resolution, 13));
                 }
               }
               time++;
           }, song.sleepTime/resolution);
           setInterval(SequencerView.repaint, 1000);
       });
   }
   
   reader.readAsArrayBuffer(e.target.files[0]);
});

el.click();

this is dank

Agreed, I was considering doing something like this, but I thought it was impossible. Who knows, maybe I should try to outdo this.