file is installed, but still loud of noise
this is terminal output
royalfluzh@Royals-MacBook-Air ~ % cd ~/Desktop/alc_fix
royalfluzh@Royals-MacBook-Air alc_fix % ./install.sh
Installing ALCPlugFix v1.7
mkdir: /usr/local/bin/: Permission denied
Password:
Stopping existing ALCPlugFix daemon.
cp: directory /usr/local/bin does not exist
cp: directory /usr/local/bin does not exist
chmod: /usr/local/bin/ALCPlugFix: No such file or directory
chown: /usr/local/bin/ALCPlugFix: No such file or directory
chmod: /usr/local/bin/hda-verb: No such file or directory
chown: /usr/local/bin/hda-verb: No such file or directory
Done!
installed by add bin folder manually n noise is fixed , but external mic isn't working, how to fix this?