Parallel iterator bash script for the quality assessment package.

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

+#!/bin/bash
+# Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+# Customize probing signals, noise sources and scores if needed.

[hlundin-webrtc, 2017/02/24 09:57:44]

Does this script assume that your cwd is something particular?

+PROBING_SIGNALS=(py_quality_assessment/probing_signals/*.wav)
+NOISE_SOURCES=( \
+    "identity" \
+    "white" \
+    "environmental" \
+    "echo" \
+)
+SCORES=( \
+    "polqa" \
+    "audio_level" \
+)
+OUTPUT_PATH=~/apm_quality_assessment-example

[hlundin-webrtc, 2017/02/24 09:57:44]

I'm not sure I like that this is written outside of the repository tree. Can you
create this in the out folder?

+
+# Generate standard APM config files.
+chmod +x apm_quality_assessment-gencfgs.py
+./apm_quality_assessment-gencfgs.py
+
+# Customize APM configurations if needed.
+APM_CONFIGS=(py_quality_assessment/apm_configs/*.json)
+
+# Add output path if missing.
+if [ ! -d ${OUTPUT_PATH} ]; then
+  mkdir ${OUTPUT_PATH}
+fi
+
+# Start one process for each "probing signal"-"noise source" pair.
+chmod +x apm_quality_assessment.py
+for probing_signal_filepath in "${PROBING_SIGNALS[@]}" ; do
+  probing_signal_name="$(basename $probing_signal_filepath)"
+  probing_signal_name="${probing_signal_name%.*}"
+  for noise_source_name in "${NOISE_SOURCES[@]}" ; do
+    LOG_FILE="${OUTPUT_PATH}/apm_qa-${probing_signal_name}-"`
+             `"${noise_source_name}.log"
+    echo "Starting ${probing_signal_name} ${noise_source_name} "`
+         `"(see ${LOG_FILE})"
+    ./apm_quality_assessment.py \
+        -i ${probing_signal_filepath}\
+        -o ${OUTPUT_PATH} \
+        -n ${noise_source_name} \
+        -c "${APM_CONFIGS[@]}" \
+        -e "${SCORES[@]}" > $LOG_FILE 2>&1 &
+  done
+done
+
+# Join.
+wait
+
+# Export results.
+./apm_quality_assessment-export.py -o ${OUTPUT_PATH}
+
+# Show results in the browser.
+RESULTS_FILE="$(realpath ${OUTPUT_PATH}/results.html)"
+sensible-browser "file://${RESULTS_FILE}" > /dev/null 2>&1 &