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

alc_fix/good.win.ALCPlugFix.plist

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>KeepAlive</key>
+    <true/>
+    <key>Label</key>
+    <string>good.win.ALCPlugFix</string>
+    <key>ProgramArguments</key>
+    <array>
+		<string>/usr/bin/ALCPlugFix</string>
+    </array>
+    <key>RunAtLoad</key>
+    <true/>
+    <key>ServiceIPC</key>
+    <false/>
+	<!--Shuold be directory that hda-verb at-->
+	<key>WorkingDirectory</key>
+	<string>/usr/bin/</string>
+</dict>
+</plist>

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

alc_fix/uninstall.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+echo "Uninstalling 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
+
+sudo rm /usr/bin/ALCPlugFix
+sudo rm /usr/bin/hda-verb
+sudo launchctl unload -w /Library/LaunchDaemons/good.win.ALCPlugFix.plist
+sudo launchctl remove good.win.ALCPlugFix
+sudo rm /Library/LaunchDaemons/good.win.ALCPlugFix.plist
+
+echo "Done!"
+exit 0