Reputation: 214
Tone.BufferSource: buffer is either not set or not loaded. This error occurs in try/catch block. It only occurs, when I trigger update function constantly or sometimes randomly. When this error occurs my audio just turns off for a brief moment.
The logic behind my code. When program starts create function is invoked in the constructor creating Tone.sequence later on when I change/update track parameters i call update fuction, which calls loopprocessor with new/updated tracks. But when i trigger update which triggers loopprocessor function it runs into tone.sourcebuffer is either not set ir loaded. How can i work around this problem? My code:
import Tone from "tone";
export function create(tracks, beatNotifier){
const loop = new Tone.Sequence(
loopProcessor(tracks, beatNotifier),
[...new Array(16)].map((_, i) => i),
"16n"
);
Tone.Transport.bpm.value = 120;
Tone.Transport.start();
return loop;
}
export function update(loop, tracks, beatNotifier){
loop.callback = loopProcessor(tracks, beatNotifier);
return loop;
}
function loopProcessor (tracks, beatNotifier) {
const urls = tracks.reduce((acc, {name}) => {
return {...acc, [name]: `http://localhost:3000/src/sounds/${name}.[wav|wav]`};
}, {});
const keys = new Tone.Players(urls, {
fadeOut: "64n"
}).toMaster();
return (time, index) => {
beatNotifier(index);
tracks.forEach(({name, vol, muted, note, beats}) => {
if (beats[index]) {
try {
var vel = Math.random() * 0.5 + 0.5;
keys
.get(name)
.start(time, 0, note, 0, vel);
keys
.get(name).volume.value = muted
? -Infinity
: vol;
} catch(e) {
console.log("error", e);
}
}
});
};
}
Upvotes: 6
Views: 4733
Reputation: 19
I had this problem recently and found a solution that worked for my case.
Tone.js doesn't like it when you initialise an audio buffer inside a function (what you're doing when you call new Tone.Players inside loopprocessor).
To get around this at the top of your code declare a new global variable buffer1 = new Tone.Buffer(url1) for each url that you need. https://tonejs.github.io/docs/r13/Buffer
Then inside loopprocessor just replace urls with each buffer and a name tag and you shouldn't have any problems. So new Tone.Players({"name1": buffer1, "name2": buffer2, ...})
Upvotes: 1