“Dirac audio processor” – how to make it work on unsupported later macos versions (BigSur / Monterey)

Version trying to install: Dirac_Audio_Processor_1.1.1.8519.mpkg , from my checks it is the latest I’ve found.

The error message is something like this:

Yes … trying to install content on system volume

If we dive into the package itself (right click -> show package contents) we will have two packages that are actually getting installed:

• Contents/Packages/Controller.pkg – user interface itself
• Contents/Packages/Device.pkg – device driver

From this, the Device.pkg is actually the one failing the installation.

For start, go ahead and double click the Controller.pkg and follow the steps to install the user interface. It should install fine, however, after trying to starting it up, it will immediately close. That’s because the device driver is missing.

The workaround it’s pretty simple. Let’s try to install Device.pkg

Once we reach “Installation type” step:

Click on “Change install Location”. We will need a secondary volume (usb stick for example) onto which to install this. In my case I had an external volume formatted as apfs (not sure if the partition type matters or not).

In my case, I’ve used “MyBook” external drive:

Select “MyBook”, then click on “Continue”, and follow the rest of the steps.

Now, it comes the tricky part (kind of), we need to copy the device driver installed on external drive on our system.

For this, open a terminal window and type:

sudo cp -pr /Volumes/MyBook/System/Library/Extensions/DiracAudioProcessor.kext /Library/Extensions/

Change “MyBook” with the name of your external drive, where you’ve installed Device.pkg

Now, let’s make sure it’s root owned:

sudo chown -R 0:0 /Library/Extensions/DiracAudioProcessor.kext

Now it’s time to load the extension:

kextload /Library/Extensions/DiracAudioProcessor.kext

At this time, we will receive a popup window telling us that we have to allow this extension.

Head over to System Preferences -> Security and Privacy . Here will have to “Click the lock to make changes” and then allow the extension.

Then a popup will show up prompting us to restart the computer.

After restart, open a console to check that extension is loaded:

kextstat|grep -i dir

It should show up something like:

At this point we are ready to open Dirac Audio Processor. App should open up and allow us to sign in/sync filters/select output device.

Basically it should work normally.

This was not tested on BigSur/Catalina, only on Monterey MacOS, but it should also work on previous mentioned as well.

Hth ☺️

macbook pro – system camera or external camera not working in facetime – No video “Facetime has not received any video from the connected camera”

Leaving this here, in case there are others facing the same issue. 

Sometimes after sleep, the external camera won’t work within facetime. It works fine in skype, zoom.

Reboot fixed it every time, but to save the restart time what worked for me was below command:

“sudo killall avconferenced”

Those commands “sudo killall AppleCameraAssistant;sudo killall VDCAssistant “, found on other posts online didn’t work for me.

The system is macbook pro 2013 , late retina, macos catalina

“The Bat!” Error message when sending a mail: Message from XXXX, subject “Re: YYYYY”, is not properly addressed

This usually happens due to temporarily files created within %AppData%\Local\Temp , which weren’t deleted as they should. Those files are left in place if, for example, you kill “The Bat!” from “Task Manager”.

Close “The Bat!” and delete all bat*.* files from “Temp” directory above, and you should be able to send messages again.