MLECO-2079 Adding the C++ KWS example

Signed-off-by: Eanna O Cathain <eanna.ocathain@arm.com>
Change-Id: I81899bbfaada32f478c2e2fc6441eabb94d8d0fc
diff --git a/samples/SpeechRecognition/cmake/unit_tests.cmake b/samples/SpeechRecognition/cmake/unit_tests.cmake
index 47c4f4b..955eed4 100644
--- a/samples/SpeechRecognition/cmake/unit_tests.cmake
+++ b/samples/SpeechRecognition/cmake/unit_tests.cmake
@@ -1,4 +1,4 @@
-# Copyright © 2020 Arm Ltd and Contributors. All rights reserved.
+# Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
 # SPDX-License-Identifier: MIT
 
 set(TEST_RESOURCES_DIR ${CMAKE_SOURCE_DIR}/test/resources)
@@ -7,11 +7,12 @@
 set(TEST_TARGET_NAME "${CMAKE_PROJECT_NAME}-tests")
 
 file(GLOB TEST_SOURCES "test/*")
+file(GLOB TESTS_AUDIO_COMMON "../common/test/Audio/*")
 
 file(MAKE_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/test/resources)
 include(../common/cmake/find_catch.cmake)
 
-add_executable("${TEST_TARGET_NAME}" ${COMMON_UTILS_SOURCES} ${SOURCES} ${TEST_SOURCES} )
+add_executable("${TEST_TARGET_NAME}" ${COMMON_UTILS_SOURCES} ${COMMON_AUDIO_SOURCES} ${SOURCES} ${TEST_SOURCES} ${TESTS_AUDIO_COMMON})
 
 ExternalProject_Add(passport
         URL https://raw.githubusercontent.com/Azure-Samples/cognitive-services-speech-sdk/master/sampledata/audiofiles/myVoiceIsMyPassportVerifyMe04.wav