Adding support to create minimalist raw spectrogram images

birdnet.conf-defaults

@@ -195,6 +195,11 @@ DATABASE_LANG=en
 
 SILENCE_UPDATE_INDICATOR=0
 
+## RAW_SPECTROGRAM is for removing the axes and labels of the spectrograms
+## that are generated by Sox for each detection for a cleaner appearance.
+
+RAW_SPECTROGRAM=0
+
 ## HEARTBEAT_URL is a location to ping every time some analysis is done
 ## no information is sent to the the URL, it is a heart beat to show that the
 ## analysis is continuing

scripts/advanced.php

@@ -200,6 +200,17 @@ if(isset($_GET['submit'])) {
     $contents2 = preg_replace("/SILENCE_UPDATE_INDICATOR=.*/", "SILENCE_UPDATE_INDICATOR=0", $contents2);
   }
 
+  if(isset($_GET["raw_spectrogram"])) {
+    $raw_spectrogram = 1;
+    if(strcmp($RAW_SPECTROGRAM,$config['RAW_SPECTROGRAM']) !== 0) {
+      $contents = preg_replace("/RAW_SPECTROGRAM=.*/", "RAW_SPECTROGRAM=$raw_spectrogram", $contents);
+      $contents2 = preg_replace("/RAW_SPECTROGRAM=.*/", "RAW_SPECTROGRAM=$raw_spectrogram", $contents2);
+    }
+  } else {
+    $contents = preg_replace("/RAW_SPECTROGRAM=.*/", "RAW_SPECTROGRAM=0", $contents);
+    $contents2 = preg_replace("/RAW_SPECTROGRAM=.*/", "RAW_SPECTROGRAM=0", $contents2);
+  }
+
   $fh = fopen('/etc/birdnet/birdnet.conf', "w");
   $fh2 = fopen("./scripts/thisrun.txt", "w");
   fwrite($fh, $contents);
@@ -287,6 +298,9 @@ foreach($formats as $format){
       <label for="silence_update_indicator">Silence Update Indicator: </label>
       <input type="checkbox" name="silence_update_indicator" <?php if($newconfig['SILENCE_UPDATE_INDICATOR'] == 1) { echo "checked"; };?> ><br>
 
+      <label for="raw_spectrogram">Silence Update Indicator: </label>
+      <input type="checkbox" name="raw_spectrogram" <?php if($newconfig['RAW_SPECTROGRAM'] == 1) { echo "checked"; };?> ><br>
+
       <h3>BirdNET-Lite Settings</h3>
 
       <p>

scripts/extract_new_birdsounds.sh

@@ -118,11 +118,22 @@ for h in "${SCAN_DIRS[@]}";do
     sox -V1 "${h}/${OLDFILE}" "${NEWSPECIES_BYDATE}/${NEWFILE}" \
       trim ="${START}" ="${END}"
 
-    # Create spectrogram for extraction
-    sox -V1 "${NEWSPECIES_BYDATE}/${NEWFILE}" -n remix 1 rate 24k spectrogram \
-      -t "${COMMON_NAME}" \
-      -c "${NEWSPECIES_BYDATE//$HOME\/}/${NEWFILE}" \
-      -o "${NEWSPECIES_BYDATE}/${NEWFILE}.png"
+    RAW_SPECTROGRAM=${RAW_SPECTROGRAM}
+    # Check if RAW_SPECTROGRAM is 1
+    if [ "$RAW_SPECTROGRAM" == "1" ]; then
+      # If it is, add "-r" as an argument to the SOX command
+      sox -V1 "${NEWSPECIES_BYDATE}/${NEWFILE}" -n remix 1 rate 24k spectrogram \
+        -t "${COMMON_NAME}" \
+        -c "${NEWSPECIES_BYDATE//$HOME\/}/${NEWFILE}" \
+        -o "${NEWSPECIES_BYDATE}/${NEWFILE}.png" \
+        -r
+    else
+      # If it's not, run the SOX command without the "-r" argument
+      sox -V1 "${NEWSPECIES_BYDATE}/${NEWFILE}" -n remix 1 rate 24k spectrogram \
+        -t "${COMMON_NAME}" \
+        -c "${NEWSPECIES_BYDATE//$HOME\/}/${NEWFILE}" \
+        -o "${NEWSPECIES_BYDATE}/${NEWFILE}.png"
+    fi
     
   done < "${TMPFILE}"
   

scripts/install_config.sh

@@ -228,6 +228,11 @@ HEARTBEAT_URL=
 
 SILENCE_UPDATE_INDICATOR=0
 
+## RAW_SPECTROGRAM is for removing the axes and labels of the spectrograms
+## that are generated by Sox for each detection for a cleaner appearance.
+
+RAW_SPECTROGRAM=0
+
 ## These are just for debugging
 LAST_RUN=
 THIS_RUN=

scripts/update_birdnet_snippets.sh

@@ -168,5 +168,9 @@ if ! grep -q 'RuntimeMaxSec=' "$HOME/BirdNET-Pi/templates/birdnet_analysis.servi
     sudo systemctl daemon-reload && restart_services.sh
 fi
 
+if ! grep RAW_SPECTROGRAM /etc/birdnet/birdnet.conf &>/dev/null;then
+  sudo -u$USER echo "RAW_SPECTROGRAM=0" >> /etc/birdnet/birdnet.conf
+fi
+
 sudo systemctl daemon-reload
 restart_services.sh