From 5c4a88b739858694659edee8ff8ae6dc16df64ea Mon Sep 17 00:00:00 2001
From: Paul Kaplan <pkaplan@media.mit.edu>
Date: Wed, 14 Jun 2017 09:10:35 -0400
Subject: [PATCH] Make a copy before using audio buffer

---
 src/index.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/index.js b/src/index.js
index bb544b0..fff1330 100644
--- a/src/index.js
+++ b/src/index.js
@@ -232,12 +232,15 @@ class AudioEngine {
 
         let loaderPromise = null;
 
+        // Make a copy of the buffer because decoding detaches the original buffer
+        var bufferCopy = sound.data.buffer.slice(0);
+
         switch (sound.format) {
         case '':
-            loaderPromise = Tone.context.decodeAudioData(sound.data.buffer);
+            loaderPromise = Tone.context.decodeAudioData(bufferCopy);
             break;
         case 'adpcm':
-            loaderPromise = (new ADPCMSoundDecoder()).decode(sound.data.buffer);
+            loaderPromise = (new ADPCMSoundDecoder()).decode(bufferCopy);
             break;
         default:
             return log.warn('unknown sound format', sound.format);