The preferences of your recording software, again select the S元00. Select your S元00 as the input microphone and select a good recording level of at least 60%-70%. 'On a PC simply go to Start > Control Panel > Hardware and Sound > Sound then manage audio devices. Having said that, I say I stand to be corrected because I just read the S元00 instruction sheet which states This means that unless your audio interface has a usb connection available, you won't be able to use a usb mic with Pro Tools. Select Track from the upper toolbar and now click New. Creating and recording your audio tracks.

Choose Open Session and select the previously created session now click Open. Once Pro Tools has completely shut down, launch the software. Choose a few or get them all with the Avid Complete Plugin Bundleoffered as an annual or monthly subscription. Pro Tools will need to restart to initialize the audio hardware settings. Since Pro Tools over rides that circuit, your audio interface (in your case the Mbox) becomes the only conduit for input/output availability when using PT. Enhance your Pro Tools digital audio workstation with these free and premium plugins. The fact that you can see the usb mic as a recording device is indicating that the motherboard audio circuit is available to use with compatible programs. When opened, Pro Tools 'over rides'computer integrated (built in motherboard audio circuit) thus rendering it unusable for simultaneous use with other applications. Once an audio interface is selected as the playback engine in Pro Tools, it becomes an integrated part of Pro Tools. Modern computers and high-quality, affordable recording software and audio interfaces have changed all that, bringing professional mixing and production tools.

This is my understanding.and I stand to be corrected.

Pro tools microphone setup