Owners Manual

signal slightly delayed, thereby creating an echo effect. This is normal behavior, so while using the

BOTH setting it may be preferable to leave the Play-Through set to OFF.

OPERATION WITH A COMPUTER

Once the USB connection is made and your computer is on, your computer will power the USB

interfaces circuitry over the USB bus and the unit will automatically connect and try to set your com-

puter “Default Audio Device” to be “USB Audio CODEC”. Usually the computer will do this automati-

cally whenever a USB device is first connected, but it is sometimes necessary to make the selection

manually. The same settings may need to be made in your particular audio application as well (Check

your application instructions). These settings should be made while the USBPhonoPlusPS and

computer are connected and powered on.

Your computer audio output “Speaker” is now set to be the “USB Audio CODEC” and playback audio

is routed to the USB Mix. This must be done while the USB Mix is connected to the computer and

powered on. If you prefer, you can have the computer output routed to your computer speakers

instead of the USBPhonoPlusPS monitor output jack, by selecting your computer speakers for

“OUTPUT” instead of “USB Audio CODEC” in the above setup procedures. After the above settings

are made, your computer will automatically reconfigure itself back to these settings every time the

USB Mix is reconnected to the computer. Your recording software may also select which inputs or

outputs are being used.

NOTE: The USB Phono Plus

Project Series

interface uses the standard “USB Audio CODEC”.

This driver is built into most modern operating systems, including most current versions of Linux.

Since some details of how the audio interface is set vary with different versions of Linux, the setup is

beyond the scope of this document. The main key in setup is to look for “USB Audio CODEC” as the

recording source or playback monitor output while the USBPhonoPlusPS is connected.