Check your computer's sound setting.

Windows computer sound settings

1. Connect DDJ-ERGO to your computer and turn it power on.

Go [ControlPanel] - [Hardware and Sound] and click [Sound]

2. If PIONEER DDJ-ERGO has been "Default Device", go to 3.

3. Choose other sound device rather than PIONEER DDJ-ERGO and click "Set as Default Device".

Close the window by clicking "OK".

4. Close the control panel and resart your computer.

Mac Audio MIDI setting reload

1. Connect DDJ-ERGO to your computer and turn it power on.

2. Open [Applications] folder, [Utilities] folder and [Audio MIDI Setup.app].

3. Open [Audio Device] window. Confirm that [Audio MIDI Setup] windows pops up.

Click [Window] and choose [Show MIDI Window].

4. [MIDI Studi] window opens up, click [PIONEER DDJ-ERGO] icon.

The icon turns to blue color, click [Remove Device].

"PIONEER DDJ-ERGO" icon dissapers and comes back again.

5. Close [Audio MIDI Setup] and turn DDJ-ERGO power off.

6. Turn DDJ-ERGO power on and run DJ Application.