RAD27 - USB Audio

The RAD27 provides a USB audio interface to the HAL system capable of simultaneous stereo playback and recording. Since the RAD27 uses native operating system drivers, no driver installation is required on either Windows operating system or Apple OS X. Once the operating system recognizes the RAD27, the blue "Connected" LED on the RAD27 illuminates.

Macintosh Computer Setup

When OS X detects the RAD27, it adds it to the list of audio input and output devices, but does not automatically set it as the default device. Some OS X based applications allow you to select the device you want to use. Other applications only use the device specified as the OS X default. We recommend that you set the default audio input and output device to the RAD27 before starting the application you want to use.

Configure the default audio device in OS X by navigating to:

System Preferences > Sound > Output:

System Preferences > Sound > Input:

OS X Playback and Recording:

Any program that plays in stereo or mono will play to the RAD27, such as iTunes, QuickTime, Keynote, or a website in Safari such as Skype. Apple's GarageBand works well as a recording program. You can simultaneously playback and record with two programs open. For instance, you can play from iTunes into the HAL system and record from the HAL system into GarageBand.

Windows Computer Setup

When Windows detects the RAD27, it may or may not set it as the default Recording and Playback device. We recommend that you set the default audio recording and playback device to the RAD27 after the first detection of RAD27.

Configure the default audio device in Windows by navigating to the audio properties dialog. Finding the audio properties and devices in the Windows operating system varies slightly with each version. The following illustrates Windows 7:

When the Windows 7 control panel is in Small/Large Icon View, open the Sound control dialog by navigating the following path:

Start > Control Panel > Sound:

When the Windows 7 control panel is in Category View, open the Sound control dialog by navigating the following path:

Start > Control Panel > Hardware and Sound > Sound

This brings up the Sound control dialog, showing the Playback tab:

Select the Rane RAD27 device and click the Set Default button.

Now switch to the Recording tab:

Select the Rane RAD27 device and click the Set Default button.

Windows will automatically switch a running application to the newly selected RAD27 default device.

Remember that Windows likes to play different bleeps and bloops when updates install, devices are plugged in and unplugged, or other operating system events happen. If you do not want these sounds played into your RAD27, turn off Windows system sounds.

You can set this by navigating the following path opening the Sound control panel dialog before. For example:

Start > Control Panel > Sound

Then click on the Sounds tab, then in the Sound Scheme drop down list select No Sounds:

Windows Playback and Recording

Programs that play back through your computers's speakers will play back through the RAD27 when you've set the Sound control panel as above. Windows doesn't include a sound recording program, but Audacity is a free ware basic audio editor and recorder and is available for download.

You can simultaneously playback and record with two programs open. For instance, you can play from iTunes into the HAL system and record from the HAL system into Audacity.