APM Quality Generator, noise generator and evaluation score workers factory + echo noise generator

webrtc/modules/audio_processing/test/py_quality_assessment/apm_quality_assessment.sh

Index: webrtc/modules/audio_processing/test/py_quality_assessment/apm_quality_assessment.sh
diff --git a/webrtc/modules/audio_processing/test/py_quality_assessment/apm_quality_assessment.sh b/webrtc/modules/audio_processing/test/py_quality_assessment/apm_quality_assessment.sh
index 84330d0d1651b19abd8c1b08ed57d3c46f7888ba..91cdce6750cc47a4b877a26ca3b554998d0c6a30 100755
--- a/webrtc/modules/audio_processing/test/py_quality_assessment/apm_quality_assessment.sh
+++ b/webrtc/modules/audio_processing/test/py_quality_assessment/apm_quality_assessment.sh
@@ -7,6 +7,30 @@
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
+# Path to the POLQA tool.
+if [ -z ${POLQA_PATH} ]; then  # Check if defined.
+  # Default location.
+  export POLQA_PATH='/var/opt/PolqaOem64'
+fi
+if [ -d "${POLQA_PATH}" ]; then
+  echo "POLQA found in ${POLQA_PATH}"
+else
+  echo "POLQA not found in ${POLQA_PATH}"
+  exit 1
+fi
+
+# Path to the Aechen IR database.
+if [ -z ${AECHEN_IR_DATABASE_PATH} ]; then  # Check if defined.
+  # Default location.
+  export AECHEN_IR_DATABASE_PATH='/var/opt/AIR_1_4'
+fi
+if [ -d "${AECHEN_IR_DATABASE_PATH}" ]; then
+  echo "AIR database found in ${AECHEN_IR_DATABASE_PATH}"
+else
+  echo "AIR database not found in ${AECHEN_IR_DATABASE_PATH}"
+  exit 1
+fi
+
 # Customize probing signals, noise sources and scores if needed.
 PROBING_SIGNALS=(probing_signals/*.wav)
 NOISE_SOURCES=( \
@@ -44,7 +68,9 @@ for probing_signal_filepath in "${PROBING_SIGNALS[@]}" ; do
     echo "Starting ${probing_signal_name} ${noise_source_name} "`
          `"(see ${LOG_FILE})"
     ./apm_quality_assessment.py \
-        -i ${probing_signal_filepath}\
+        --polqa_path ${POLQA_PATH}\
+        --air_db_path ${AECHEN_IR_DATABASE_PATH}\
+        -i ${probing_signal_filepath} \
         -o ${OUTPUT_PATH} \
         -n ${noise_source_name} \
         -c "${APM_CONFIGS[@]}" \