path-trace

Path Trace

A movement recorder for Norns and Crow.

Record encoder rotations to four looping, independent buffers — one for each Crow output — and optionally set voltage output range, sample and hold trigger, and quantization.

Requirements

• Norns
• Crow

Documentation

Select

• E1 selects one of four buffers. Each buffer corresponds with the Crow output of the same number.

Record

• K2 toggles recording. Press once to begin recording, and press again to end it. 'R' appears in lower right when recording is active.
• E2 is monitored during recording. The encoder's position is captured every 30ms.

Play

• K3 toggles playback. Press once to begin playing, and press again to end it. 'P' appears in lower right when playback is active.

Configure

• Settings can be changed through the Params menu, get there by pressing K1 and turning E1 until you see the fourth screen.

Global Configuration

• Key and Mode apply to all quantized buffers

Individual Buffer Configuration

• Voltage Range adjusts the minimum and maximum voltage values. Select from common Eurorack standards.
• S&H Input designates which crow input will trigger a sample and hold event. Once selected C[#] will appear in lower right and will flash when a pulse comes in.
• Quantization adjusts the buffer's output to match the scale set by the global Key and Mode.
• Octave Base and Octave Range set the octaves to which the quantized notes will be mapped.

Other Things To Know

• Each buffer can hold up to five minutes of recording, with samples taken every 30ms.
• Recording will immediately end if E1 is turned.
• Using K2 to stop recording resets the buffer to the start.
• Changing the Voltage Range does not retroactively adjust existing values.

Future Ideas

• Tune playback speed on scope
• Connect tempo to internal clock
• TXO support
• One shots