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index.js

@@ -1,2 +1,23 @@
-const nodeAudio = require('bindings')('nodeaudio.node'),
-exports.nodeAudio = nodeAudio;
+const nodeAudio = require('bindings')('nodeaudio.node');
+
+/* Utility function that merges Int16Arrays */
+const mergeChunks = (chunks) => {
+    const chunkLengths = chunks.map((b) => b.length),
+          totalChunkLength = chunkLengths.reduce((p, c) => p+c, 0),
+          int16Arr = new Int16Array(totalChunkLength);
+
+    console.log(`${totalChunkLength} frames captured in total.`);
+
+    let offset = 0;
+    for (var i = 0; i < chunks.length; i++) {
+        int16Arr.set(chunks[i], offset);
+        offset += chunkLengths[i];
+    }
+
+    return int16Arr;
+}
+
+const utils = { mergeChunks: mergeChunks };
+
+exports.core = nodeAudio;
+exports.utils = utils;