Befaco - Sampling Modulator

Product information "Befaco - Sampling Modulator"
The Sampling Modulator is a multi-function module that lies somewhere between a VCO, a Sample & Hold, and an 8 step trigger sequencer.

Sequencer Clocked Sample & Hold In this mode it acts like a regular Sample and Hold (S&H) but since it is “sequencer clocked”, it is capable of much more interesting patterns than the usual S&H melodies.

The CLOCK input can work in two ways: 1. As a typical clock 2. In “positive going hard sync” mode allowing you to create shuffling and polyrythmic effects.

The HOLD input can be used to keep certain notes playing.

Analog Down-Sampling Effect In this mode (with the clock running at audio rates) you can go from nasty and harsh sampling rate reduction to an almost clean signal. (The clock run up to 25Khz without external CV and up to 200Khz with CV on the input).

Sampling Modulator/Shaper Thanks to the V/Oct clock, by feeding a simple waveshape such as a sine wave to IN, and pitch CV to the VCO as well as to the Sampling Modulator CV input, their related frequencies and aliasing caused by the sampling rate reduction are capable of creating clangorous metallic sounds, 8 bit textures and much more.

The game becomes much more interesting when you try to destroy the wave by flipping on and off the switches of the sequencer (which at times can make it sound like three VCOs running in unison).

To understand how the Sampling Modulator works, keep in mind that we are working with a temperature compensated ramp core VCO with more than 4 octaves of tracking. This allows the timbre to stay the same while you move through the scale as the internal and external VCOs are synced in a fashion similar to “frequency related sampling rate modulation”

Unusual V/oct VCO You can use the trigger outputs as a pulse VCO. Flipping the switches on and off the switches can offer a lot of interesting timbral changes.


Sequencer Clocked Sample & Hold In this mode it acts like a regular Sample and Hold (S&H) but since it is “sequencer clocked”, it is capable of much more interesting patterns than the usual S&H melodies.

The CLOCK input can work in two ways: 1. As a typical clock 2. In “positive going hard sync” mode allowing you to create shuffling and polyrythmic effects.

The HOLD input can be used to keep certain notes playing.

Analog Down-Sampling Effect In this mode (with the clock running at audio rates) you can go from nasty and harsh sampling rate reduction to an almost clean signal. (The clock run up to 25Khz without external CV and up to 200Khz with CV on the input).

Sampling Modulator/Shaper Thanks to the V/Oct clock, by feeding a simple waveshape such as a sine wave to IN, and pitch CV to the VCO as well as to the Sampling Modulator CV input, their related frequencies and aliasing caused by the sampling rate reduction are capable of creating clangorous metallic sounds, 8 bit textures and much more.

The game becomes much more interesting when you try to destroy the wave by flipping on and off the switches of the sequencer (which at times can make it sound like three VCOs running in unison).

To understand how the Sampling Modulator works, keep in mind that we are working with a temperature compensated ramp core VCO with more than 4 octaves of tracking. This allows the timbre to stay the same while you move through the scale as the internal and external VCOs are synced in a fashion similar to “frequency related sampling rate modulation”

Unusual V/oct VCO You can use the trigger outputs as a pulse VCO. Flipping the switches on and off the switches can offer a lot of interesting timbral changes.

Features:
• Sequencer Clocked Sample & Hold
• Analog Down-sampling Effect
• Sampling Modulator/Shaper
• 8 Step Trigger Sequencer
• Unusual V/Oct VCO

DIY-Kit-Type:
THT-Kit-1. This is a Do-It-Yourself kit, not an assembled module. The kit includes all parts to build the module. Only trough-hole parts to solder. Make sure to check the build guide before you buy. For build guide, more info, videos etc. please check the buttons below.
Current draw +12 V [mA]: 48
Current draw -12 V [mA]: 18
DIY Level: Medium
Depth [mm]: 40
Width [HP]: 8
Format: 3U
Panel / Color: Black Alu
Manufacturer / Hersteller:
BEFACO Modular, S.L.
Pere IV 29-35
7° 6a
08018 Barcelona
Spain
sales@befaco.org


Product Safety Information

Eurorack DIY Kits

Important Notice & Intended Use
Please read this safety guide before installation or use. This kit is intended for adult users experienced in electronics and modular synthesis. Assembly, including soldering, is required. Proper testing and installation are essential to ensure safe and functional operation. The completed module is intended for installation in a Eurorack-compatible synthesizer system powered by ±12V and +5V.

General Warnings

1. Electrical Hazards:
• Ensure the power supply matches the module’s specified voltage and current ratings (refer to the product manual). Incorrect voltage can damage the module and pose a safety risk.
• Never connect or disconnect the module while the Eurorack system is powered on.
• Wrong polarity can damage your module or system. Make sure the module is connected with correct polarity.

2. Heat Generation:
• The module may generate heat during operation. Ensure proper ventilation within your Eurorack case to prevent overheating.

3. Sharp Edges:
• The module’s faceplate and components may have sharp edges. Handle with care to avoid cuts or scratches.

4. Small Parts:
• Contains small parts that could cause a choking hazard. Keep away from children and pets.

5. Compatibility:
• This module is designed specifically for Eurorack-compatible systems. Connecting it to non-compatible systems may result in damage or malfunction.

Assembly Requirements
• Soldering skills are required to complete the module.
• Ensure a clean, well-lit and ventilated workspace free of flammable materials during assembly.
• Use appropriate tools and safety equipment, such as eye protection.

Testing
• Test the module thoroughly for shorts or incorrect assembly before powering it in your Eurorack system. When the unit has malfunctions due to incorrect assembly, the entire Eurorack system might be damaged. It's a good idea to test it in a separate case with only that single module.
• Use a multimeter or other appropriate tools to confirm proper functionality.

Installation and Use
• Mount securely in a Eurorack case using the provided screws.
• Use only the included or manufacturer-recommended power cable.
• Connect only when the power is off.
• Follow the module's user guide for instructions on operation. Do not exceed the input/output limits specified.

Responsibility
Users are solely responsible for proper assembly and testing. Contact manufacturer support for assistance if needed.

Environmental Safety
• Dispose of the module, its components, and packaging in accordance with local electronic waste regulations.

Liability Disclaimer
• The manufacturer or distributor is not responsible for any injury, damage, or malfunction resulting from improper installation, use, or modification of this product.

Contact Information
For further assistance, contact the manufacturer (you'll find the info under each product in our shop) or our shop support team at:

Tech Creation Lab Leipzig UG (haftungsbeschränkt)
Nonnenstrasse 19, 04229 Leipzig, Germany
support@exploding-shed.com
Manufacturer "Befaco"

Befaco is an Eurorack manufacturer that also offers DIY kits, organizes workshops and releases their designs under Creative Commons license.

In February 2010 Befaco was created as an open hardware platform focusing on professional DIY musical hardware, materializing the previous electronic, musical and artistic research of its members.

Our main activity has been developing synthesizer modules in eurorack format and making them available in workshops. All this research is published under CC-NC-SA License, so people can download the schematics, and technical assembly guides, to make their own variations of the projects for personal and educative purposes. Also build all our designs during our regular workshops in cities as Barcelona, Madrid, London or Berlin.
During the past twelve years, apart of these regular four cities, we have visited cities as Tokyo, Kyoto, Toronto, Montreal, Chicago, Frankfurt, Helsinki, Lyon, Stuttgart and Amsterdam, amongst many other European cities.

These workshops are a huge test playground where we can track each module being built by different worldwide users, get direct feedback and quickly improve them with, develop new ones, or adapt these instruments to users demands constantly.

Direct contact with DIY enthusiasts allows an implication of users in the structure, allowing them to design their own modules and develop them in a professional way. This has developed into an incubation environment for several new modular initiatives, allowing different makers to start their own similar projects.

Befaco initiative is possible thanks to the support of Hangar, an artistic production centre in Barcelona, Barcelona city hall and the titanic work by the whole Befaco team.

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