MLECO-3254 Default to using only one file per UC


Signed-off-by: Eanna O Cathain <eanna.ocathain@arm.com>
Change-Id: I4a1cd2b5746cb479ae0d81ed973961cec2f3046e
diff --git a/source/use_case/asr/usecase.cmake b/source/use_case/asr/usecase.cmake
index 2a2178b..e0baca3 100644
--- a/source/use_case/asr/usecase.cmake
+++ b/source/use_case/asr/usecase.cmake
@@ -17,9 +17,7 @@
 # Append the API to use for this use case
 list(APPEND ${use_case}_API_LIST "asr")
 
-USER_OPTION(${use_case}_FILE_PATH "Directory with custom WAV input files, or path to a single WAV file, to use in the evaluation application."
-    ${CMAKE_CURRENT_SOURCE_DIR}/resources/${use_case}/samples/
-    PATH_OR_FILE)
+set_input_file_path_user_option(".wav" ${use_case})
 
 USER_OPTION(${use_case}_LABELS_TXT_FILE "Labels' txt file for the chosen model."
     ${CMAKE_CURRENT_SOURCE_DIR}/resources/${use_case}/labels/labels_wav2letter.txt