Often virtual audio devices live here, such as Sessionwire or Telestream. Go to /Library/Audio/Plug-Ins/HAL - in there you will find devices that may not remove when you try doing it using Audio MIDI Setup. In other words there’s another place to look for what appear to be audio devices on your Mac and that’s in the HAL folder. The HAL can also provide timing information to your application to simplify synchronization or to adjust for latency.” What is the Hardware Abstraction Layer? From Apple’s Developer information: “Core Audio uses a hardware abstraction layer (HAL) to provide a consistent and predictable interface for applications to interact with hardware. You’ll see a window like the one shown below. If you can’t see the audio devices when you open it then go to the Window Menu and select Show Audio Devices. The Audio MIDI Setup application helps to set up and manage, as its name suggests, audio and MIDI devices on a Mac. The first place to look is using the Audio MIDI Setup app, this can be found in the /System/Applications/Utilities folder. In DepthĪs outlined above, there are several places to look for and modify audio devices on a Mac. To remove a device, delete it then restart your Mac. If this doesn’t work then go to /Library/Audio/Plug-Ins/HAL - in there you will find an array of devices, often virtual audio devices live here, such as Sessionwire or Telestream. In many cases it’s simply a case of selecting the device you want to remove and clicking on the - (minus) icon at the bottom left of the GUI.
This should list all the devices, including any Aggregate audio devices you may have created. Open the Audio MIDI Setup application, go to the Window Menu and select Show Audio Devices. The first place is to look in Audio MIDI Setup on your Mac. There’s a couple of places to look if you have unwanted or redundant audio devices you want to remove. If you want to use the on board IO this is the option you need.If you’ve ever had a pesky unwanted Apple Mac audio device that inhabits your audio device list in your DAW but can’t seem to remove it, we tell you how.
On a Mac, Pro Tools and Pro Tools | First sees the core audio input and output as separate devices and Avid created an aggregate device combining them both called Pro Tools Aggregate IO. ASIO4All is a generic ASIO diver for windows machines. If you are using Windows you will need to use an ASIO driver for your on board audio on your PC. If you are using on board sound hardware on a Mac you will be using Core Audio. Sound settings (PC - Control Panel > Hardware and Sound) is one of the most common causes of confusion with sound.
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