The C-1U Knob Recorder from Flame is a compact module in 1U design that records and plays back knob movements. The maximum recording time is about one minute and plays back the control voltages obtained by turning as a one-shot or in an endless loop. Instead of the control, any voltage applied to the CV input can also be recorded. The playback speed respectively a Offset for the input is also adjustable with the controller. Thanks to the battery-buffered memory the recorded controller data remains stored in the module until the next power on. In addition, the voltage range can be switched from unipolar to bipolar via the rear panel Jumper .