OTO Biscuit User manual
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BISCUIT user manual
Copyright ©2009 OTO MACHINES SARL.
All rights reserved.
No part of this manual may be reproduced in any form without the written permission of OTO MACHINES SARL.
Product features, specifications, availability and informations in this manual are subject to change without notice.
www.otomachines.com
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Presentation
User Interface/ Front Panel
Rear Panel
Example connections
Diagram
Set the Input Level
Biscuiting
Effects
Waveshaper
Delay
Pitch Shifter
Step Filter
page 5
page 6
page 8
page 9
page 11
page 11
page 12
page 13
page 14
page 16
page 19
page 20
page 24
page 24
page 25
page 26
page 27
page 27
page 28
page 29
page 30
page 31
page 33
page 36
Table of contents
Presets
Saving a preset
Recalling a preset
Snapshots
Potentiometers position
Factory presets
Midi
Midi Channel
Midi Filters
Presets Dump
Program Change
Specifications
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1.1
1.2
1.3
1.4
1.5
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3
3.1
3.2
3.3
3.4
4
4.1
4.2
4.3
4.4
4.5
5
5.1
5.2
5.3
5.4
6
Safety warnings and recommendations
Do not eat Biscuit.
Before using BISCUIT, make sure you read all the instructions below, and the User Manual.
BISCUIT should be connected to a power supply only of the type described in this manual.
The included AC adaptor has some openings on its enclosure for cooling purpose. Do not
obstruct these openings, or place things on the top of the AC adaptor which could prevent
normal cooling.
If your BISCUIT is unused for a long period of time, disconnect the AC adaptor from the
outlet.
BISCUIT, in combination with an external amplification system or headphones, may gener-
ate a high sound level, which could potentially damage your ears. Do not operate BISCUIT
for a long period of time at a high volume level. It’s safer to keep reasonable levels and
start with low volume.
Do not expose BISCUIT and its AC adaptor to rain, moisture, dust, sand or dirt.
Do not pour liquids into BISCUIT.
Never use or store BISCUIT near water, for example sea, swimming pool, bathtub, kitchen
or bathroom sink.
BISCUIT should be located away from high temperatures (> 35 degrees C), for example
direct sunlight in an enclosed vehicle, radiators, heat registers, stoves or other heat
sources.
Only clean BISCUIT with a soft, dry cloth. Do not apply any liquids or alcohol.
Do not apply excessive vibration forces to BISCUIT, do not drop it and always transport it in
its original packaging or in shock-absorbent material.
Never climb on top of, nor place heavy objects on BISCUIT.
Some parts of BISCUIT are fragile (such as the housing and some electronic components),
so dropping it might damage your BISCUIT. Repair work resulting from dropped BISCUIT is
not covered by the normal warranty of the product.
Do not leave small children alone with BISCUIT, and do not let them use BISCUIT unless
they are capable of following all the rules for the safe operation of BISCUIT.
Do not open (or modify in any way) BISCUIT or its AC adaptor. There are no user serviceable
parts inside. Refer all servicing to qualified personnel only. If you think your BISCUIT needs
Warning on epilepsy
A very small percentage of individuals may experience epileptic seizures or blackouts when
exposed to certain light patterns or flashing lights. If you have an epileptic condition or have
had seizures of any kind, consult your physician before using Biscuit.
Warranty
BISCUIT is sold with one year full warranty. This warranty covers all malfunctions that may
occur from normal use, and does not cover damage due to abuse, faulty connections or
operation under other than specified conditions. Warranty is void when serial number is un-
readable, when the device is repaired by unauthorized persons, opened, or tampered with
in any way, or if the product was not sold to the end-user through an authorized dealer or the
OTO MACHINES website. This warranty is limited to replacement or repair of the product.
The unit can only be returned for repair after agreement from OTO Machines.
Customer covers shipping cost of faulty BISCUIT to OTO Machines and OTO Machines cov-
ers shipping cost back to customer.
Disposal
The trash can symbol indicates that your product must be disposed of properly according
to local laws and regulations.
BISCUIT has been tested to comply with the 2004/108/EC EMC Directive.
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1 PRESENTATION
Thank you for choosing the BISCUIT !
BISCUIT is a stereo effects processor. Thanks to a subtle blend of 8-bit
digital and analog processing, BISCUIT is able to create a wide range of
sounds. It goes from 8-bit character and lo-fi digital artefacts to numeric
distortions.
BISCUIT is very useful to add depth and texture to any kind of electronic
sound. It works best with synthesizers (digital or analog), bassline, drum
machines, loops, samplers or computers, but you can use it with any other
source.
BISCUIT is basically an enhanced bit depth and sample-rate reducer, known
as “bitcrusher”, followed by an analog filter and a simple mixing section
(dry/wet). It also offers other features like removing or inverting each of the
8 bits, changing the sample rate from 250Hz to 30kHz, or adding one of
the four effects (waveshaper, delay, pitch shifter and step filter).
Biscuit is MIDI compatible.
You can save the complete BISCUIT settings (pots and switches) in 16
presets.
A SysEx dump function lets you save and recall as many presets as you
like on your computer.
Features
• Stereo inputs and outputs
• Input gain from -cto 15 dB with diode clipping
• Real 8-bit Analog to Digital and Digital to Analog converters
• True analog multimode filter with resonance control
• Variable sample clock from 250 Hz to 30 kHz
• Unique capability of muting and inverting each of the 8 bits
• FX section: Waveshaper, Delay, Pitch Shifter and Step Filter
• Separate level control of dry and 8-bit signals
• 16 presets
• MIDI compatible
• True relay bypass
• Rugged metallic Neutrik®connectors
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1.1 USER INTERFACE/ Front Panel (FIG1)
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1.1 USER INTERFACE/ Front Panel
1 DRIVE : Input gain (from -cto +15 dB) placed before the AD conversion. A diode clipper protects the converters
2 NAKED : Dry signal level (from -cto 0 dB)
3 DRESSED : 8- bit signal level (from -cto 0 dB)
4Q:Filter Resonance
5 FILTER : Filter type. Switch colour indicates which type of filter is selected : Green is for Low-pass, Yellow for Band-pass and Orange for Hi-pass
6 FREQ : Filter cutoff frequency (from 20 Hz to 15kHz)
7 BRAIN : When BRAIN is off, the switches 1 to 8 are used for Biscuiting (cf Chap. 2). When BRAIN is Blue, the switches 1 to 8 are used for selecting FXs and
parameters. This switch is also used for recalling and saving Presets and to access the MIDI section
8 CLOCK : Sample Clock Frequency (from 250 Hz to 30 kHz). This pot is also used in the FX section to set parameters
9 BYPASS : True relay bypass. When the switch lights up green, BISCUIT is active. It turns orange when input signal is strong. When its light is off, BISCUIT is
inactive and input signal is directly routed to output jacks, with no electronics in between
10 - 1 to 8 : These switches have 2 main functions : muting or inverting the 8 bits and selecting FX type and parameters. They are also used for presets, MIDI
section and snapshots
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Table of contents
