Alternate/DIY panel for Frames

Alternate/DIY panel for Frames, designed by Grayscale:
http://grayscale.info/panels/mutable-instruments-frames/

Frames - Keyframer/mixer.

The heart of Frames is a 4-channel digitally controlled analog VCA. Through flexible input/output mixing and normalling options, it can be patched to serve the following purposes (among others):
* 4-channel attenuator/VCA.
* 4-channel mixer.
* 4-channel programmable CV source.
* Quadraphonic panner.

But what makes it truly unique is the way in which channel levels can be controlled, using a technique inspired by computer animation. Frames allows up to 64 configurations of the 4 level knobs to be stored and recalled throughout the course of its big "Frame" knob. By rotating the knob (or sending a CV to the Frame modulation input), the configurations are morphed into one another.

To fine-tune the animation and get varied morphing or sequencing results, the following options are available for each of the 4 channel:
* Easing curve (stepped, linear, exponential, logarithmic, sine, bouncy)
* Attenuation response of the level knob, from linear to logarithmic

With a bit of patching and imagination, Frames can also be repurposed as a 4-channel sequencer, a multi-stage envelope generator, a trajectory generator for quadraphonic panning...

Controls

• 4x Channel level control with LEDs for visualizing levels
• Frame control with RGB LED backlight
• Frame CV attenuverter
• Keyframe creation/suppression buttons

Inputs and outputs

• 4x DC-coupled signal inputs
• 4x Attenuated signal outputs
• Global signal input normalled to all inputs
• Mix output
• Frame control CV input
• Frame change trigger output

Technical characteristics

• CV inputs impedance: 100k.
• Audio input impedance: 100k (25k for the global input in some configurations due to normalling).
• Cortex-M3 ARM processor.
• Open-source hardware and firmware.
• Easy firmware updates through an audio interface.

http://mutable-instruments.net/modules/frames/