diff --git a/case-lib/lib.sh b/case-lib/lib.sh
index 5cb486bc..2ee34338 100644
--- a/case-lib/lib.sh
+++ b/case-lib/lib.sh
@@ -828,7 +828,7 @@ set_sof_volume()
             tinymix -D"$device" set "$control_name" "$value"
         ;;
         *)
-           die "Unknown alsa tool $SOF_ALSA_TOOL"
+           die "Unknown ALSA tool ${SOF_ALSA_TOOL}"
        ;;
     esac
 }
@@ -847,7 +847,7 @@ get_sof_controls()
             tinymix --card "$sofcard" controls
        ;;
        *)
-            die "Unknown alsa tool $SOF_ALSA_TOOL"
+            die "Unknown ALSA tool ${SOF_ALSA_TOOL}"
         ;;
     esac
 }
@@ -863,7 +863,7 @@ kill_play_record()
            pkill -9 tinyplay
        ;;
         *)
-           die "Unknown alsa tool $SOF_ALSA_TOOL"
+           die "Unknown ALSA tool ${SOF_ALSA_TOOL}"
        ;;
     esac
 }
@@ -888,7 +888,7 @@ check_alsa_tool_process()
                 die "tinyplay process is terminated too early"
        ;;
        *)
-            die "Unknown alsa tool $SOF_ALSA_TOOL"
+            die "Unknown ALSA tool ${SOF_ALSA_TOOL}"
        ;;
     esac
 }
@@ -911,7 +911,7 @@ aplay_opts()
         # shellcheck disable=SC2086
         aplay $SOF_ALSA_OPTS $SOF_APLAY_OPTS "$@"
     else
-        die "Unknown ALSA tool: $SOF_ALSA_TOOL"
+        die "Unknown ALSA tool: ${SOF_ALSA_TOOL}"
     fi
 }
 
@@ -930,7 +930,7 @@ arecord_opts()
         # shellcheck disable=SC2086
         arecord $SOF_ALSA_OPTS $SOF_ARECORD_OPTS "$@"
     else
-        die "Unknown ALSA tool: $SOF_ALSA_TOOL"
+        die "Unknown ALSA tool: ${SOF_ALSA_TOOL}"
     fi
 }
 
@@ -1236,16 +1236,72 @@ reset_sof_volume()
     get_sof_controls "0" | sed -e "s/^.*'\(.*\)'.*/\1/" |grep -E 'PGA|gain' |
     while read -r mixer_name
     do
+        dlogi "Reset volume to ${level_db} on ${mixer_name}"
         if [[ "$SOF_ALSA_TOOL" = "alsa" ]]; then
                 amixer -Dhw:0 -- sset "$mixer_name" "$level_db"
-       elif [[ "$SOF_ALSA_TOOL" = "tinyalsa" ]]; then
+        elif [[ "$SOF_ALSA_TOOL" = "tinyalsa" ]]; then
                 tinymix -D0 set "$mixer_name" "$level_db"
         else
-            echo "Unknown alsa tool $SOF_ALSA_TOOL"
-            break
+            die "Unknown ALSA tool ${SOF_ALSA_TOOL}"
         fi
     done
 }
+
+# Initialize and restore ALSA mixer state to the last saved on the DUT,
+# reset volume, and apply the HW MODEL-specific settings, if defined.
+#
+# This initialization procedure assumes that the DUT's ALSA init files,
+# UCM2, and default state (/var/lib/alsa/asound.state) are either kept
+# unchanged as a 'golden' config, or _mostly_ consistent with the MODEL.
+# The latter case is when the alsa-restore service is active on the DUT and
+# the state file keeps the last active mixer settings persistent to restore
+# them after the DUT's reboot.
+# The init files and the persistent state file should diverge not more
+# than set_alsa_settings() aligns and should be reset to a 'golden' config
+# during the DUT's deployment step of the test plan execution,
+# which is external to the test case scope of operations.
+#
+set_alsa()
+{
+  local alsa_log="${LOG_ROOT}/alsa_setup.log"
+  local asound_state="${LOG_ROOT}/asound_state"
+  local rc=0
+
+  # Read the ALSA restore service status
+  systemctl --no-pager status alsa-restore.service > "${alsa_log}" 2>&1 || rc=$?
+  [[ "${rc}" -ne 0 ]] && dlogw "alsa-restore check error=${rc}" && rc=0
+  [ -f /lib/systemd/system/alsa-restore.service ] && cat /lib/systemd/system/alsa-restore.service >> "${alsa_log}"
+
+  alsactl store -f "${asound_state}_old.txt" 2>&1 || rc=$?
+  [[ "${rc}" -ne 0 ]] && dlogw "alsactl store error=${rc}" && rc=0
+
+  dlogi "Try to initialize all devices to their default ALSA state (alsactl init)."
+  printf '%s\n' '-vv------- ALSA init -------vv-' >> "${alsa_log}"
+  alsactl -d init >> "${alsa_log}" 2>&1 || rc=$?
+  [[ "${rc}" -ne 0 ]] && dlogw "alsactl init error=${rc}" && rc=0
+  printf '%s\n' '-^^------- ALSA init -------^^-' >> "${alsa_log}"
+
+  dlogi "Restore ALSA defaults from /var/lib/alsa/asound.state"
+  printf '%s\n' '-vv------- Restore ALSA defaults -------vv-' >> "${alsa_log}"
+  # We don't need in sudo to write our log file, but to call `alsactl`
+  # shellcheck disable=SC2024
+  sudo alsactl -d restore >> "${alsa_log}" 2>&1 || rc=$?
+  [[ "${rc}" -ne 0 ]] && dlogw "alsactl restore error=${rc}" && rc=0
+  printf '%s\n' '-^^------- Restore ALSA defaults -------^^-' >> "${alsa_log}"
+
+  reset_sof_volume
+
+  # If MODEL is defined, set proper gain for the platform
+  if [ -z "$MODEL" ]; then
+    dlogw "NO MODEL is defined. Please define MODEL to run alsa_settings/\${MODEL}.sh"
+  else
+    set_alsa_settings "$MODEL"
+  fi
+
+  alsactl store -f "${asound_state}.txt" 2>&1 || rc=$?
+  [[ "${rc}" -ne 0 ]] && dlogw "alsactl store error=${rc}"
+}
+
 DO_PERF_ANALYSIS=0
 
 perf_analyze()
diff --git a/test-case/check-alsa-conformance.sh b/test-case/check-alsa-conformance.sh
index e71cdfe9..5899944c 100755
--- a/test-case/check-alsa-conformance.sh
+++ b/test-case/check-alsa-conformance.sh
@@ -221,18 +221,6 @@ select_PCMs()
   done
   dlogi "Capture devices: ${CAPTURE_DEVICES[*]}"
 }
-  
-set_alsa()
-{
-  reset_sof_volume
-
-  # If MODEL is defined, set proper gain for the platform
-  if [ -z "$MODEL" ]; then
-    dlogw "No MODEL is defined. Please define MODEL to run alsa_settings/\${MODEL}.sh"
-  else
-    set_alsa_settings "$MODEL"
-  fi
-}
 
 alsa_conformance_device_info()
 {
diff --git a/test-case/check-alsabat.sh b/test-case/check-alsabat.sh
index 9aadb863..644648ff 100755
--- a/test-case/check-alsabat.sh
+++ b/test-case/check-alsabat.sh
@@ -83,20 +83,10 @@ fi
 
 check_locale_for_alsabat
 
-# reset sof volume to 0dB
-reset_sof_volume
-
-# If MODEL is defined, set proper gain for the platform
-if [ -z "$MODEL" ]; then
-    # treat as warning only
-    dlogw "NO MODEL is defined. Please define MODEL to run alsa_settings/MODEL.sh"
-else
-    #dlogi "apply alsa settings for alsa_settings/MODEL.sh"
-    set_alsa_settings "$MODEL"
-fi
-
 logger_disabled || func_lib_start_log_collect
 
+set_alsa
+
 function __upload_wav_file
 {
     # upload the alsabat wav file
@@ -112,13 +102,13 @@ function __upload_wav_file
 
 # check the PCMs before alsabat test
 dlogi "check the PCMs before alsabat test"
-aplay   -Dplug$pcm_p -d 1 /dev/zero -q || die "Failed to play on PCM: $pcm_p"
-arecord -Dplug$pcm_c -d 1 /dev/null -q || die "Failed to capture on PCM: $pcm_c"
+aplay   "-Dplug${pcm_p}" -d 1 /dev/zero -q || die "Failed to play on PCM: ${pcm_p}"
+arecord "-Dplug${pcm_c}" -d 1 /dev/null -q || die "Failed to capture on PCM: ${pcm_c}"
 
 # alsabat test
 # BT offload PCMs also support mono playback.
 dlogc "alsabat -P$pcm_p --standalone -n $frames -r $rate -c $channel_p -f $format -F $frequency -k $sigmak"
-alsabat -P$pcm_p --standalone -n $frames -c $channel_p -r $rate -f $format -F $frequency -k $sigmak & playPID=$!
+alsabat "-P${pcm_p}" --standalone -n "${frames}" -c "${channel_p}" -r "${rate}" -f "${format}" -F "${frequency}" -k "${sigmak}" & playPID=$!
 
 # playback may have low latency, add one second delay to aviod recording zero at beginning.
 sleep 1
@@ -132,7 +122,7 @@ amixer -c "${first_card_name}" contents > "$LOG_ROOT"/amixer_settings.txt
 # We use different USB sound cards in CI, part of them only support 1 channel for capture,
 # so make the channel as an option and config it in alsabat-playback.csv
 dlogc "alsabat -C$pcm_c -c $channel_c -r $rate -f $format -F $frequency -k $sigmak"
-alsabat -C$pcm_c -c $channel_c -r $rate -f $format -F $frequency -k $sigmak || {
+alsabat "-C${pcm_c}" -c "${channel_c}" -r "${rate}" -f "${format}" -F "${frequency}" -k "${sigmak}" || {
         # upload failed wav file
         __upload_wav_file
         exit 1
diff --git a/test-case/latency-metrics.sh b/test-case/latency-metrics.sh
index c8c6bd0c..9ad07f25 100755
--- a/test-case/latency-metrics.sh
+++ b/test-case/latency-metrics.sh
@@ -142,18 +142,6 @@ check_latency_options()
   fi
 }
 
-set_alsa()
-{
-  reset_sof_volume
-
-  # If MODEL is defined, set proper gain for the platform
-  if [ -z "$MODEL" ]; then
-    dlogw "NO MODEL is defined. Please define MODEL to run alsa_settings/MODEL.sh"
-  else
-    set_alsa_settings "$MODEL"
-  fi
-}
-
 # set/update commands in case the test iterates or sweep over a range
 compose_commands()
 {