Page 121 of 123
Copyright 1010music LLC 2023
Blackbox 3.0 User Manual
TECHNICAL SPECS
Onboard Memory
Blackbox has 64MB of onboard RAM. However, this is a cache, not a hard limit to what can
be loaded at once. That’s because blackbox streams content directly from the microSD
card in real time.
Maximum Sample Length
Blackbox streams the longer samples from the microSD card, so the maximum length is
a function of the maximum file size for a sample. The maximum file size is 4GB, which
can be many hours depending on the sample rate and bit depth.
Blackbox caches smaller samples as needed.
Samples Supported
Blackbox supports stereo samples. It can record in stereo and has stereo outputs.
Blackbox supports samples in the WAV file format. It supports 1 or 2 channel files with 16,
24 or 32-bit resolution at any sample rate. 48kHz is the preferred sample rate. The
blackbox engine uses a 24-bit ADC and DAC.
WAV file names may use alphanumeric characters (A-Z, 0-9) and some special characters.
The following characters are NOT allowed: double quotes, forward slash, back slash,
question mark, asterisk, less than and greater than symbols, the colon and the pipe
symbol (
“ / \ ? * < > : |
). File names must be less than 256 characters, including the
path name. Files that do not conform to these naming constraints will not be recognized
by blackbox.
Maximum Number of Voices Supported
Blackbox can support playback of up to 32 total voices across all pads at once.
Additionally, there is a limit for each pad, based on the pad mode. Blackbox supports 16-
note polyphony for pads in Sample and Multi-Sample Modes, 2-note polyphony in Clip
and Slicer Modes, and one note at a time in Granular mode.
Nothing in blackbox will prevent you from trying to play 16 voices on all 16 pads at the
same time. However, the CPU can be overloaded if you play too many notes at once while
also using sequencing and effects. You can reliably play 24 voices across all pads
simultaneously. Beyond that, you may encounter some sound quality issues like crackling.
The exact breaking point depends on whether effects are running, the CPU load, and
other factors.
