New effects added: Chorus, Phaser, and Tremolo.
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An audio effects library for the Web Audio API. Created by DinahMoe
- Overdrive (6 different algorithms)
- Filter
- Cabinet
- Delay
- Convolver (Reverb)
- Compressor
- WahWah
- Tremolo
- Phaser
- Chorus
Start by creating a new Tuna object like so:
var context = new AudioContext(); var tuna = new Tuna(context);
You need to pass the audio context you're using in your application. Tuna will be using it to create its effects.
You create a new tuna node as such:
var chorus = new tuna.Chorus({
rate: 1.5,
feedback: 0.2,
delay: 0.0045,
bypass: 0
});
You can then connect the tuna node to native Web Audio nodes by doing:
nativeNode.connect(chorus.input); chorus.connect(anotherNativeNode);
or to other tuna nodes by doing:
tunaNode.connect(chorus.input); chorus.connect(anotherTunaNode.input);
All tuna nodes are connected TO by using the nodes input property, but connecting FROM the tuna node works as it does with ordinary native AudioNodes.
A basic chorus effect.
var chorus = new tuna.Chorus({
rate: 1.5, //0.01 to 8+
feedback: 0.2, //0 to 1+
delay: 0.0045, //0 to 1
bypass: 0 //the value 1 starts the effect as bypassed, 0 or 1
});
A delay effect with feedback and a lowpass filter applied to the delayed signal.
var delay = new tuna.Delay({
feedback: 0.45, //0 to 1+
delayTime: 150, //how many milliseconds should the wet signal be delayed?
wetLevel: 0.25, //0 to 1+
dryLevel: 1, //0 to 1+
cutoff: 2000, //cutoff frequency of the built in lowpass-filter. 20 to 22050
bypass: 0
});
A basic phaser effect.
var phaser = new tuna.Phaser({
rate: 1.2, //0.01 to 8 is a decent range, but higher values are possible
depth: 0.3, //0 to 1
feedback: 0.2, //0 to 1+
stereoPhase: 30, //0 to 180
baseModulationFrequency: 700, //500 to 1500
bypass: 0
});
A basic overdrive effect.
var overdrive = new tuna.Overdrive({
outputGain: 0.5, //0 to 1+
drive: 0.7, //0 to 1
curveAmount: 1, //0 to 1
algorithmIndex: 0, //0 to 5, selects one of our drive algorithms
bypass: 0
});
A compressor with the option to use automatic makeup gain.
var compressor = new tuna.Compressor({
threshold: 0.5, //-100 to 0
makeupGain: 1, //0 and up
attack: 1, //0 to 1000
release: 0, //0 to 3000
ratio: 4, //1 to 20
knee: 5, //0 to 40
automakeup: true, //true/false
bypass: 0
});
A convolver with high- and lowcut. You can find a lot of impulse resonses here, or by searching for "free impulse response files".
var convolver = new tuna.Convolver({
highCut: 22050, //20 to 22050
lowCut: 20, //20 to 22050
dryLevel: 1, //0 to 1+
wetLevel: 1, //0 to 1+
level: 1, //0 to 1+, adjusts total output of both wet and dry
impulse: "impulses/impulse_rev.wav", //the path to your impulse response
bypass: 0
});
A basic filter.
var filter = new tuna.Filter({
frequency: 20, //20 to 22050
Q: 1, //0.001 to 100
gain: 0, //-40 to 40
filterType: 0, //0 to 7, corresponds to the filter types in the native filter node: lowpass, highpass, bandpass, lowshelf, highshelf, peaking, notch, allpass in that order
bypass: 0
});
A cabinet/speaker emulator.
var cabinet = new tuna.Cabinet({
makeupGain: 1, //0 to 20
impulsePath: "impulses/impulse_guitar.wav", //path to your speaker impulse
bypass: 0
});
A basic tremolo.
var tremolo = new tuna.Tremolo({
intensity: 0.3, //0 to 1
rate: 0.1, //0.001 to 8
stereoPhase: 0, //0 to 180
bypass: 0
});
A wahwah with an auto wah option.
var wahwah = new tuna.WahWah({
automode: true, //true/false
baseFrequency: 0.5, //0 to 1
excursionOctaves: 2, //1 to 6
sweep: 0.2, //0 to 1
resonance: 10, //1 to 100
sensitivity: 0.5, //-1 to 1
bypass: 0
});