Yes, by using the Recording feature in rekordbox.
Operate rekordbox as described below.
- Click the [REC] icon at the top left of the screen to open the recording panel of rekordbox.
- Click the [REC] button in the recording panel to start recording.
To end recording, click the [REC] button again.
When recording stops, the recorded file is saved as a WAV file.
For details, refer to "Recording" (PERFORMANCE mode) in the rekordbox Operating Instructions. rekordbox Operating Instructions can be obtained from the rekordbox website.