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Need help?Do you have a question about the Bastl microGranny and is the answer not in the manual?
Controls for selecting and manipulating audio samples. The page number of the sample is indicated by the sample counter.
Navigating and activating preset sample banks. Press the button once to select the bank.
Describes the function of the FN button in conjunction with knobs for parameter adjustment.
The MicroGranny is a monophonic granular sampler that offers a unique approach to sound manipulation through its granular synthesis capabilities. It's designed for both live performance and studio use, allowing users to sample, process, and reshape audio in real-time.
At its core, the MicroGranny is a granular sampler. This means it takes a small segment of an audio file, called a "grain," and manipulates it in various ways to create new textures, drones, and rhythmic patterns. The device can sample audio directly through its built-in microphone or line input, or it can load WAV files from a microSD card.
A key feature of the MicroGranny is its ability to synchronize granular algorithms via MIDI. This allows the device to integrate seamlessly into a larger musical setup, ensuring that its granular effects remain in time with other instruments or sequencers. The MIDI implementation is quite extensive, covering parameters like grain size, speed, start position, and even the selection of samples.
The device operates on an 8-bit architecture, which contributes to its distinct sonic character, often described as lo-fi or gritty. This 8-bit processing applies to both the live sampling and the playback of WAV files, giving all sounds a consistent aesthetic.
The MicroGranny's interface is designed for hands-on control, featuring a combination of knobs, buttons, and a small display. This allows for intuitive manipulation of parameters during performance. The device supports multiple banks of samples, which can be organized and loaded from the microSD card, providing a wide palette of sounds to work with.
Beyond basic granular synthesis, the MicroGranny offers several playback modes and effects. These include different ways to loop grains, reverse playback, and apply various envelopes to shape the sound. The device also has a "freeze" function, which can hold a particular grain or sound indefinitely, creating sustained textures.
The live sampling capability is a significant aspect of the MicroGranny. Users can record short audio snippets directly into the device, which are then immediately available for granular processing. This makes it a powerful tool for spontaneous sound design and improvisation. The built-in microphone allows for quick capture of environmental sounds or vocalizations, while the line input provides a way to sample from other audio sources with higher fidelity.
The MicroGranny's architecture is built around a single voice, meaning it is monophonic. While this might seem limiting, it encourages creative approaches to sound design, focusing on the intricate textures and evolutions of individual sounds rather than complex polyphonic arrangements.
The MicroGranny is highly portable and designed for ease of use in various settings. It can be powered by a standard 9V DC adapter or via a USB power bank, making it suitable for on-the-go music creation. The compact size and robust construction ensure it can withstand the rigors of live performance.
Sample management is facilitated by the microSD card slot. Users can prepare WAV files on a computer and then load them onto the card, organizing them into folders for easy access on the device. The MicroGranny supports a specific naming convention for files and folders, which helps in navigating and selecting samples efficiently. The device also allows for saving recorded samples directly to the microSD card, preserving spontaneous creations.
The interface includes a set of knobs for controlling key parameters such as grain size, speed, start position, and envelope. These knobs provide continuous control, allowing for smooth transitions and real-time modulation of the granular engine. The buttons are used for triggering samples, navigating menus, and activating various functions like recording, playback modes, and effects.
MIDI implementation is a strong point, offering extensive control over the MicroGranny's parameters from an external MIDI controller or sequencer. This includes MIDI clock synchronization, which ensures that granular effects like looping and rhythmic patterns stay perfectly in time with other instruments. MIDI CC messages can be mapped to various internal parameters, allowing for deep integration into a larger MIDI setup.
The live sampling workflow is straightforward: press a button to record, and the captured audio is immediately available for granular manipulation. This allows for quick experimentation and the creation of unique sounds on the fly. The device also offers options for adjusting the input gain, ensuring optimal recording levels.
The MicroGranny supports different playback modes, including forward, reverse, and various looping options. These modes can be combined with granular parameters to create a wide range of sonic textures, from shimmering ambient drones to glitchy rhythmic patterns. The ability to freeze a grain allows for sustained sounds, which can then be further modulated.
The device's display, though small, provides essential feedback on current parameters, sample names, and menu navigation. This helps users keep track of their settings and selections during performance. The menu system is designed to be intuitive, allowing users to quickly access and adjust various settings without getting lost.
The MicroGranny is also designed to be hackable and customizable. While not explicitly stated as a user feature, the open-source nature of some Bastl Instruments products suggests a community that encourages modification and experimentation. This can extend to custom firmware or hardware modifications for advanced users.
Maintaining the MicroGranny primarily involves proper care of the hardware and managing the microSD card. The device is built with durable components, but like any electronic instrument, it benefits from being handled with care.
The microSD card is crucial for the MicroGranny's operation, as it stores all samples and recorded audio. Regular backups of the card's contents are recommended to prevent data loss. Users should also ensure they are using a compatible microSD card and that it is formatted correctly according to the device's specifications. Periodically cleaning the card and its slot can help maintain reliable performance.
The device's firmware can be updated, which is a common maintenance task for electronic instruments. Firmware updates often introduce new features, improve existing functionalities, or fix bugs. Users can typically download new firmware from the manufacturer's website and install it via the microSD card. Following the update instructions carefully is important to avoid any issues.
Cleaning the device's exterior with a soft, dry cloth is generally sufficient to keep it in good condition. Avoid using harsh chemicals or abrasive materials that could damage the finish or electronic components. Protecting the knobs and buttons from excessive force or impact will also prolong their lifespan.
Powering the device with the recommended 9V DC adapter or a high-quality USB power bank is important for stable operation. Using an incorrect power supply could potentially damage the unit. If the device is not going to be used for an extended period, it's advisable to disconnect the power supply and store it in a safe, dry place.
In case of any issues, consulting the device's manual or the manufacturer's support resources is the first step. Many common problems can be resolved through troubleshooting steps provided by the manufacturer. The modular nature of some Bastl Instruments products also implies that certain components might be user-replaceable or repairable with basic tools, though this would depend on the specific issue and the user's technical expertise.
General| Type | Monophonic granular sampler |
|---|---|
| Bit Depth | 8-bit |
| Polyphony | Monophonic |
| Sampling Rate | 22050 Hz |
| SD Card Support | Yes |
| Power | 9V DC |
| Weight | 200 g |
| Inputs | 1x 1/4" TS (mono), 1x 3.5mm (mono) |
| Outputs | 1x 1/4" TS (mono), 1x 3.5mm (mono) |
