About VPROM :
VPROM is a software plugin that accurately reproduces the internal circuitry and filtering of the legendary drum machine that was the talk of the town in the early 80s. Back in the day, this expensive drum computer was the first to incorporate real drum samples, making it a game-changer in the world of drum machines.
Early sample-based drum machines relied on acoustic drum sounds recorded on basic hardware without anti-aliasing. However, the unique sound they produced cut through a mix like nothing else, making them a popular alternative to the analog drum sounds of the era. The vintage drum machine that inspired VPROM is highly regarded to this day for its unique sound and character, which cannot be replicated by using samples of its analog output alone. With one DAC and clock per voice and yummy filters, this historical piece of gear takes pride of place in the 80s sound picture. With only 500 units in existence, finding a working one is rare and expensive. This machine has been used by major acts such as Prince, Phil Collins, Thompson Twins, Stevie Wonder, Gary Numan, Depeche Mode, The Human League, Jean-Michel Jarre, Vangelis, John Carpenter, Todd Rundgren, and The Art of Noise. … As a musician myself, I strive to maintain the standard of excellence expected by musicians. Since there were no accurate VSTs for that legend out there, I made VPROM.
Thank you for your support – it makes things happen, such as bringing VPROM to WIN, MAC, x86, and x64 platforms.
VPROM not only reproduces the sound of the legendary drum machine but also reads and imports original, custom, or vintage EPROMs from other Drum Machines of that era, such as the Linndrum, DMX, DrumTraks, and more. (.bin files can be found on the net). An EPROM is an integrated circuit used to store short audio sample data in a compressed format. VPROM is the closest thing to the real deal and decodes original EPROM data images in real-time using the exact decode table from the AM6070 DAC at a variable sample rate. VPROM also allows you to experiment with your sample database, convert samples with external tools, and load compatible ULaw companded images (see manual for more info).
With VPROM, you can create funky grooves like never before!
Features :
AM6070 Modeled Real-Time DAC Decoding:
VPROM accurately decodes incoming data using the exact decode table from the datasheet, resulting in a realistic and gritty sound at every pitch. It eliminates the need for resampling or tuning low-quality sample packs that often sound dull at lower pitches. The plugin also provides an option to maintain high-frequency spectrum integrity at any tuning via efficient oversampling.
Hihat Data Looping & VCA:
The hihat circuitry is unique, where the hihat proms are read constantly in a loop while only a VCA is triggered. The circuitry has the ability to discharge the current through an additional way based on the decay pot setting for closed hihats, resulting in a different sound on every hit.
CEM 3320 Filters:
Unlike early version of the LM1, most popular revisions featured filters:Some voices with bass frequency content were filtered to minimize the remaining 8-bit noise using a VCF configured as a low-pass filter with no resonance. The CV frequency of the VCF was shaped by the circuitry to allow transients to pass through relatively unfiltered. VPROM offers the ability to fine-tune the CV pulse or bypass the filter completely. This is useful when a voice is tuned very low or when replacing a “Bass” slot with another EPROM that doesn’t require filtering.
Separate Pitch Tuning:
VPROM allows users to tune any voice to a particular frequency using the PROMS data, which is read one byte at a time by a counter controlled by a stable oscillator. The counters reading speed could then be affected by the external tuning pots in a limited range, or – 1 Octave. The tuning range can be tweaked and the plugin provides a useful wide range of pitch from 1000Hz to 44100Hz and anything in between based on a real mod. (See manual)
Separate Outputs:
Like the original machines, VPROM features separate outputs for every voice, and users can choose from ALL to 1 Stereo Channel or Separate Channels for each voice.
Velocity Control:
VPROM allows users to limit themselves to only 2 velocity levels or use the full range of MIDI velocity for convenience.
GUI & Automation:
The VPROM GUI features the original trigger buttons for quick listening and controls over every aspect of the drum machine. Most parameters like volume and pitch knobs can be MIDI learned and controlled by an external MIDI hardware.
Loading External EPROM Data:
VPROM provides the ability to replace some voices with external compatible 8-bit companded EPROM data, opening up the machine to LINNDRUM (LM-2), LINN 9000, DMX, DX, DRUMTRACKS, etc. samples or even load custom-made samples. Users can switch between custom-loaded and stock EPROMs on the fly.
System Requirements :
Mac OS
Windows
About VPROM :
VPROM is a software plugin that accurately reproduces the internal circuitry and filtering of the legendary drum machine that was the talk of the town in the early 80s. Back in the day, this expensive drum computer was the first to incorporate real drum samples, making it a game-changer in the world of drum machines.
Early sample-based drum machines relied on acoustic drum sounds recorded on basic hardware without anti-aliasing. However, the unique sound they produced cut through a mix like nothing else, making them a popular alternative to the analog drum sounds of the era. The vintage drum machine that inspired VPROM is highly regarded to this day for its unique sound and character, which cannot be replicated by using samples of its analog output alone. With one DAC and clock per voice and yummy filters, this historical piece of gear takes pride of place in the 80s sound picture. With only 500 units in existence, finding a working one is rare and expensive. This machine has been used by major acts such as Prince, Phil Collins, Thompson Twins, Stevie Wonder, Gary Numan, Depeche Mode, The Human League, Jean-Michel Jarre, Vangelis, John Carpenter, Todd Rundgren, and The Art of Noise. … As a musician myself, I strive to maintain the standard of excellence expected by musicians. Since there were no accurate VSTs for that legend out there, I made VPROM.
Thank you for your support – it makes things happen, such as bringing VPROM to WIN, MAC, x86, and x64 platforms.
VPROM not only reproduces the sound of the legendary drum machine but also reads and imports original, custom, or vintage EPROMs from other Drum Machines of that era, such as the Linndrum, DMX, DrumTraks, and more. (.bin files can be found on the net). An EPROM is an integrated circuit used to store short audio sample data in a compressed format. VPROM is the closest thing to the real deal and decodes original EPROM data images in real-time using the exact decode table from the AM6070 DAC at a variable sample rate. VPROM also allows you to experiment with your sample database, convert samples with external tools, and load compatible ULaw companded images (see manual for more info).
With VPROM, you can create funky grooves like never before!
Features :
AM6070 Modeled Real-Time DAC Decoding:
VPROM accurately decodes incoming data using the exact decode table from the datasheet, resulting in a realistic and gritty sound at every pitch. It eliminates the need for resampling or tuning low-quality sample packs that often sound dull at lower pitches. The plugin also provides an option to maintain high-frequency spectrum integrity at any tuning via efficient oversampling.
Hihat Data Looping & VCA:
The hihat circuitry is unique, where the hihat proms are read constantly in a loop while only a VCA is triggered. The circuitry has the ability to discharge the current through an additional way based on the decay pot setting for closed hihats, resulting in a different sound on every hit.
CEM 3320 Filters:
Unlike early version of the LM1, most popular revisions featured filters:Some voices with bass frequency content were filtered to minimize the remaining 8-bit noise using a VCF configured as a low-pass filter with no resonance. The CV frequency of the VCF was shaped by the circuitry to allow transients to pass through relatively unfiltered. VPROM offers the ability to fine-tune the CV pulse or bypass the filter completely. This is useful when a voice is tuned very low or when replacing a “Bass” slot with another EPROM that doesn’t require filtering.
Separate Pitch Tuning:
VPROM allows users to tune any voice to a particular frequency using the PROMS data, which is read one byte at a time by a counter controlled by a stable oscillator. The counters reading speed could then be affected by the external tuning pots in a limited range, or – 1 Octave. The tuning range can be tweaked and the plugin provides a useful wide range of pitch from 1000Hz to 44100Hz and anything in between based on a real mod. (See manual)
Separate Outputs:
Like the original machines, VPROM features separate outputs for every voice, and users can choose from ALL to 1 Stereo Channel or Separate Channels for each voice.
Velocity Control:
VPROM allows users to limit themselves to only 2 velocity levels or use the full range of MIDI velocity for convenience.
GUI & Automation:
The VPROM GUI features the original trigger buttons for quick listening and controls over every aspect of the drum machine. Most parameters like volume and pitch knobs can be MIDI learned and controlled by an external MIDI hardware.
Loading External EPROM Data:
VPROM provides the ability to replace some voices with external compatible 8-bit companded EPROM data, opening up the machine to LINNDRUM (LM-2), LINN 9000, DMX, DX, DRUMTRACKS, etc. samples or even load custom-made samples. Users can switch between custom-loaded and stock EPROMs on the fly.
System Requirements :
Mac OS
Windows
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