This was easy.

Vexatos · Vexatos · commit acf9d06aa301 · 2016-05-04T15:11:33.000+02:00
diff --git a/src/main/java/pl/asie/computronics/util/sound/Audio.java b/src/main/java/pl/asie/computronics/util/sound/Audio.java
@@ -348,7 +348,7 @@ public void play(float x, float y, float z, Queue<Instruction> instructions) {
 						for(int sample = 0; sample < sampleCount; ++sample) {
 							for(AudioUtil.State state : process.states) {
 								int value = ((byte) (state.gate.getValue(process, state) * amplitude)) ^ 0x80;
-								state.data.add(interner.intern((byte) value));
+								state.data.write(interner.intern((byte) value));
 							}
 						}
 						process.delay = 0;
@@ -366,7 +366,7 @@ public void play(float x, float y, float z, Queue<Instruction> instructions) {
 					synchronized(sources) {
 						for(AudioUtil.State state : process.states) {
 							ByteBuffer buf = BufferUtils.createByteBuffer(state.data.size());
-							for(Byte aByte : state.data) {
+							for(byte aByte : state.data.toByteArray()) {
 								buf.put(aByte);
 							}
 							sources.add(new Source(x, y, z, buf, gain));
diff --git a/src/main/java/pl/asie/computronics/util/sound/AudioUtil.java b/src/main/java/pl/asie/computronics/util/sound/AudioUtil.java
@@ -3,8 +3,8 @@
 import com.google.common.collect.ImmutableList;
 import pl.asie.computronics.reference.Config;
 
+import java.io.ByteArrayOutputStream;
 import java.util.ArrayList;
-import java.util.List;
 
 /**
  * @author Vexatos
@@ -177,7 +177,7 @@ public static class State {
 		public ADSR envelope;
 
 		public boolean isFreqMod, isAmpMod;
-		public final List<Byte> data = new ArrayList<Byte>();
+		public final ByteArrayOutputStream data = new ByteArrayOutputStream();
 
 		public State(int channelIndex) {
 			this.wave = new Wave();

Original file line number	Diff line number	Diff line change
`@@ -348,7 +348,7 @@ public void play(float x, float y, float z, Queue<Instruction> instructions) {`
`348`	`348`	`for(int sample = 0; sample < sampleCount; ++sample) {`
`349`	`349`	`for(AudioUtil.State state : process.states) {`
`350`	`350`	`int value = ((byte) (state.gate.getValue(process, state) * amplitude)) ^ 0x80;`
`351`		`- state.data.add(interner.intern((byte) value));`
	`351`	`+ state.data.write(interner.intern((byte) value));`
`352`	`352`	`}`
`353`	`353`	`}`
`354`	`354`	`process.delay = 0;`
`@@ -366,7 +366,7 @@ public void play(float x, float y, float z, Queue<Instruction> instructions) {`
`366`	`366`	`synchronized(sources) {`
`367`	`367`	`for(AudioUtil.State state : process.states) {`
`368`	`368`	`ByteBuffer buf = BufferUtils.createByteBuffer(state.data.size());`
`369`		`- for(Byte aByte : state.data) {`
	`369`	`+ for(byte aByte : state.data.toByteArray()) {`
`370`	`370`	`buf.put(aByte);`
`371`	`371`	`}`
`372`	`372`	`sources.add(new Source(x, y, z, buf, gain));`