Partial Analyser implementation

Author: gSkinner-Blair

src/effects/Analyser.js

@@ -0,0 +1,35 @@
+import Sound from "../Sound"
+import Effect from "./Effect"
+import HighPassFilter from "./HighPassFilter";
+
+export default class Analyser extends Effect {
+
+	constructor(binCount = 4){
+		super();
+
+		this.analyserNode = Sound.context.createAnalyser();
+
+		this.effectBus.connect(this.analyserNode);
+		this.analyserNode.connect(this.wetGainNode);
+	}
+
+	// Outputs what is essentially a bar graph of how much each frequency is included in the current audio signal.
+	getFrequencyData(storageArray){
+		if(!storageArray){
+			storageArray = new Float32Array(this.analyserNode.frequencyBinCount); // This will allow people to pass the same array to save on space and copying, but it's not necessary if they just want to check once.
+		}
+		return this.analyserNode.getFloatTimeDomainData(storageArray);
+	}
+
+	// Outputs what is essentially a snapshot of the waveform of the audio signal at this instant.
+	getTimeDomainData(storageArray){
+		if(!storageArray){
+			storageArray = new Float32Array(this.analyserNode.frequencyBinCount); // This will allow people to pass the same array to save on space and copying, but it's not necessary if they just want to check once.
+		}
+		return this.analyserNode.getFloatFrequencyData(storageArray);
+	}
+
+	clone(){
+		return new Analyser();
+	}
+}