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A Mini•Me equipped with the USB Option Card offers digital I/O for use with computer operating systems
that support USB Audio devices. The audio can be handled in the operating system in different ways. Refer to
your platform and OS below for detailed information on setup options for the Mini•Me.
The Mini•Me also offers a unique feature that enables the unit to run at a different sample rate and bit depth
than the computer recording software. The USB Audio I/O section of the Mini•Me follows the sample rate
and resolution settings on the computer, while the AES and S/PDIF outputs follow the settings of the "sam-
ple rate" knob on the front panel.
For example, this can be used to send a 16-bit/44.1 kHz signal out of the AES output to a CD burner while
simultaneously sending a 24-bit/48 kHz signal out of the USB Audio port to the computer. In this case, the ana-
log inputs are converted at 44.1 kHz and sent through UV22HR, to dither the AES and S/PDIF outputs to 16-
bit. The USB Audio section receives the 44.1 kHz signal before the dithering process, where it is still a 24-bit
signal. The data is processed with a sample rate converter to derive a sample rate of 48 kHz. The result is a 24-
bit/48 kHz signal that is sent out the USB port to the computer. The sample rate selction knob on the front of
the Mini•Me will be set to 16-bit /44.1 kHz, while the settings in the computer will be 24-bit/48 kHz.
Another example could be the ability for the Mini•Me to send a 24-bit/96 kHz signal out of the AES port,
while at the same time sending a 16-bit/44.1kHz signal into a DAW via USB. In this instance, set the sample rate
knob on the front panel of the Mini•Me to 24-bit/96 kHz and set the computer to 16-bit/44.1 kHz.
When the computer is set to 16-bit, the Mini•Me sends the USB Audio signal through UV22HR for word
length reduction before it is output to the computer.
The basic concept is that the Mini•Me AES and S/PDIF outputs will always follow the front panel set-
ting, while the USB Audio outputs will always follow the settings on the computer.
For minimal chances of error in recording, we recommend that the computer settings for sample rate are the
same as that of the Mini•Me front panel settings.
Connect the Mini•Me to the computer with a USB cable.
IMPORTANT: The Mini•Me should be plugged directly into a USB port on the computer. It is not
recommended to plug the Mini•Me into a USB port on the keyboard or into a USB hub.
Operating System and ASIO Driver Support
The Apogee Mini•Me can operate via USB in one of two ways: by using the operating system's support for
USB Audio, and via an ASIO driver for the appropriate operating system. The functionality of these two
approaches varies from one operating system to another, but in general we recommend the use of the ASIO
driver where available, especially in the case of Windows. Software driver development and OS support are
both continuous processes, and support will develop over time. For the latest drivers and information, visit
the Apogee web site's USB page at http://www.apogeedigital.com/usb/
Operating Systems Currently Supported
As of August 2002, the following operating systems are completely or partially supported, either directly by
the OS or via the ASIO driver:
Macintosh OS 9.1 and later
Macintosh OS X (10.1.x and later)
Windows 98 Second Edition (98SE)
Windows Millennium Edition (Me)
Windows 2000
Windows XP
Macintosh OS 9.x
For Macintosh OS 9.1 and later, the Mini•Me can send and receive USB Audio through Apple's Sound
Manager or via the custom USB Audio ASIO driver written for the Mini•Me.
Mini•Me User's Guide
USB Input & Output
Page 16
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