Tag Archives: diy

Turkish TB2

General,

A grad student in electronic engineering  from Istanbul, Turkey shared these shots of his graduation project – based on the TB2.

Here’s what he wrote:

Looking at the last product that I made, it really has similarities with yours upon hardware and software design. I also really can say that I appreciate your design. I used a 16×4 LCD and I put some additional buttons. I left a gap in the upper right corner for a future sd card module. My design became actually a little bigger because I only had a chance of one layer pcb design:)

Very cool! (Click the pictures to enlarge)

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TB2 Attack! Out now!

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Yes, while the manual is still a work in progress, you can now download the Attack! drum machine firmware for TB2 here .

Here’s a feature overview:

Here are the vital statistics:
– 6 voices
– 12-bit, 22kHz, stereo playback
– loads wav-files off SD card (NB: samples are truncated to the first 250ms only!)
– individual control per voice over pan, pitch, sample start/end, volume, bit reduction
– assign sample start, pitch, bit reduction and volume to velocity
– save and load kits on SD card
– 32 step sequence
– 8 sequences per bank
– save and load sequences on SD card
– live recording/overdubbing
– set 2 velocity levels per voice (normal and accent)
– supports flams (individual delay and decay settings per voice)
– automate sample start and pitch per voice
– MIDI in/out/sync
– bult-in grain effects

 

Groovesizer RED – play modes (VIDEO)

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Here’s a video showing off the play modes of the Groovesizer RED – if all goes to plan we’ll be releasing the RED in the coming week. The kit will be priced at US$80 – postage included.

The Groovesizer RED is a DIY 16-step sequencer and granular synth. It’s based on the original Groovesizer mk1 Arduino project. It features 16 LEDs (one per step), 5 potentiometers, and 5 buttons, MIDI input and ouput on 5-pin DINs, MIDI sync in and out, and audio out (mono) on an 1/8″ jack. There are 32 user locations for saving patterns and patches. Up to 4 patterns can be chained together to create a 4 bar pattern. Note entry can be quantized to one of 12 pre-defined scales. Patterns can be triggered and transposed via MIDI. Notes can also be entered via an attached MIDI keyboard.

Delta V111 Demo

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Here’s a demo of the Delta V111 firmware.

Drums are from Cakewalk Sonar and a touch of reverb, delay, and stereo chorus have been added.

With the exception of a couple of hitches, it was pretty straightforward to replace the DAC-based sound engine of the Groovesizer Alpha with the PWM-based granular one of Peter Knight’s Auduino. It positively drips with character and squelchy goodness. All the sequencer features of the Alpha firmware have been retained. These include:
– 32 step sequencer
– step ties, rests, and slides
– MIDI sync (in and out)
– 112 save locations for patterns
– saved patterns are chainable
– record movements of pot 1 with the option to send recorded automation out as MIDI cc data
– random pattern creation (chromatic, major, minor, pentatonic)
– accents

Coming soon: Groovesizer mk1 kits

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The original Groovesizer mk1 is still getting quite a bit of attention, so I’ve decided to offer it in kit form, too. I wanted to keep it simple and as close to the original as possible, but at the same time I couldn’t resist improving on some of the shortcomings of the first design. I’ve added two shift registers so that now there is an LED for each of the 16 steps – with some pins to spare broken out on an expansion header). I’ve also added a MIDI input alongside the output, so that it can be played as a standalone instrument, or synced to external devices.

Some prototype boards are being fabbed as we speak. It should be a great beginners kit with a low parts count and price. Groovesizer mk1_pcb