Change ProductName to MacBookAir7,2 , Remove VoodooHDA, Using AppleALC.

alc_fix/install.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+DAEMON_PATH=/Library/LaunchDaemons/
+BIN_PATH=/usr/bin/
+DAEMON_FILE=good.win.ALCPlugFix.plist
+VERB_FILE=hda-verb
+FIX_FILE=ALCPlugFix
+
+echo "Installing ALCPlugFix.  Root user is required."
+
+# check if the root filesystem is writeable (starting with macOS 10.15 Catalina, the root filesystem is read-only by default)
+if sudo test ! -w "/"; then
+    echo "Root filesystem is not writeable.  Remounting as read-write and restarting Finder."
+    sudo mount -uw /
+    sudo killall Finder
+fi
+
+# stop the daemon if it's already running
+if sudo launchctl list | grep --quiet ALCPlugFix; then
+    echo "Stopping existing ALCPlugFix daemon."
+    sudo launchctl unload $DAEMON_PATH$DAEMON_FILE
+fi
+
+# copy over the files to their respective locations (overwrite automatically if files exist)
+sudo cp -f ALCPlugFix $BIN_PATH
+sudo cp -f hda-verb $BIN_PATH
+sudo cp -f good.win.ALCPlugFix.plist $DAEMON_PATH
+
+# set permissions and ownership
+sudo chmod 755 $BIN_PATH$FIX_FILE
+sudo chown $USER:admin $BIN_PATH$FIX_FILE
+sudo chmod 755 $BIN_PATH$VERB_FILE
+sudo chown $USER:admin $BIN_PATH$VERB_FILE
+sudo chmod 644 $DAEMON_PATH$DAEMON_FILE
+sudo chown root:wheel $DAEMON_PATH$DAEMON_FILE
+
+# load and start the daemon
+sudo launchctl load -w $DAEMON_PATH$DAEMON_FILE
+
+echo "Done!"
+exit 0