1 files changed, 37 insertions, 0 deletions
diff --git a/samples/SpeechRecognition/src/Decoder.cpp b/samples/SpeechRecognition/src/Decoder.cpp
new file mode 100644
index 0000000000..663d4db5b5
--- /dev/null
+++ b/samples/SpeechRecognition/src/Decoder.cpp
@@ -0,0 +1,37 @@
+//
+// Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "Decoder.hpp"
+
+namespace asr {
+
+    Decoder::Decoder(std::map<int, std::string>& labels):
+            m_labels(labels)
+    {}
+
+    std::string Decoder::FilterCharacters(std::vector<char>& unfiltered)
+    {
+        std::string filtered = "";
+
+        for(int i = 0; i < unfiltered.size(); ++i)
+        {
+            if (unfiltered.at(i) == '$')
+            {
+                continue;
+            }
+
+            else if (i + 1 < unfiltered.size() && unfiltered.at(i) == unfiltered.at(i + 1))
+            {
+                continue;
+            }
+            else
+            {
+                filtered += unfiltered.at(i);
+            }
+        }
+        return filtered;
+    }
+}// namespace
+