merryXmas

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How it works

Halfway between the music box and the greeting card, merryXmas is a sequencer of pre-recorded music.

With the potentiometer, it is possible to adjust the speed of the song, from very slow to very fast: forward and backward.
The songs come out in LoFi audio with 5 waveforms available and in CV / Gate.

By pressing the selection button for a few seconds, the song enters the random draw mode: the keys of the song are played in a random order.

Alternate mode of the module

The module also offers 8 controls of different shapes whose potentiometer controls the speed.

Specifications

Width : 4hp (20mm)
Depth : 35mm
+12V : 80mA
-12V : 0mA

Audio : +/- 5V
Gate : Low : 0V / High : about 10V
CV : 0V to 5V

Songs available

–1– We wish you a Merry Christmas
–2– Jingle Bells
–3– Angels We Have Heard on High
–4– Swiss Anthem
–5– Peer Gynt: In the Hall of the Mountain King (Grieg)
–6– Jesus, Joy of Man’s Desiring (JS Bach)
–7– Prelude (JS Bach)
–8– On The Run: Synthi Line (Pink Floyd)

User Guide

Normal Mode:

– The selection button allows you to choose the song
– The potentiometer sets the speed rate:
– Very slow in the center
– From center to right: from slow to very fast, the song is played « forward ».
– From center to left: from slow to very fast, the track is played « backward ».
To symbolize the LEDs are rising or falling.

– When the button is pressed while the potentiometer is in its central position, the waveform of the audio signal changes:
–1– Sinusoid
–2– Triangle
–3– Rising sawtooth
–4– Square
–5– « Telephone » signal (2 sinusoids)

– When the select button is pressed for a few seconds, the song goes into shuffle mode.
To symbolize it, the LEDs are lit randomly in rhythm.

Song Random Mode

By pressing the selection button for a few seconds, the song enters the random mode: the notes of the song are played in a random order.
– From center to right: from slow to very fast, the keys keep the time value of the song and the silences are maintained.
– From center to left: from slow to very fast, each keys are played at the same time value, all the silences are removed.

Random mode : note mapping of each song

Here is a graphical representation of the distribution of keys for each song, and therefore of their probability of being drawn.
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Alternate mode : waveforms

– To switch to the alternative mode, simply press and hold the button while the potentiometer is in the central position.
– The selection button then makes it possible to go from one control to another.
To visually show that alternate mode is enabled, the LEDs do not flicker, indicating only the current control.
The module also offers 8 different controls of different shapes whose potentiometer controls the speed:
–1– Sinusoid
–2– Triangle
–3– Rising sawtooth
–4– Descending sawtooth
–5– Square
–6– « Telephone » signal (2 sinusoids)

For these first 6 modes, the signals are available in the audio range (audio output), in positive LFO (0V – 5V), the gate output is high when the LFO is> 2.5V.

–7– Fake « Sample & Hold »
For this mode, the keys are randomly determined (noise => quantizer). The knob controls the speed of the note change.
On the Audio output, the pitch of a square wave is modulated by this Sample & Hold, on the output CV: the CV of the key and on the gate a pulse according to the speed.

–8– Noise / Chaos Generator
Audio output:
Noise generator, the potentiometer set the « noise grain » of a few shots per minute way Geiger counter to a very pronounced and raw sound (melted material) to end on much softer filtered noise.
CV output:
Chaos generator, the signal fluctuates randomly between 0V and 5V. The potentiometer controls the rate of fluctuation.
Gate output:
Short pulses are generated according to the chaos generator.