Adamson Fletcher Machine

Reference class immersive audio rendering engine. Unparalleled sound quality, versatility and ease of use. Position sound objects in the acoustic space in a way you never dreamed of before…

Versatile and easy to use
The Adamson Fletcher Machine offers very simple and super efficient sound spatialization tools. It provides the highest degree of versatility and can be used in various loudspeaker environments, from simple to complex setups, in small or large scale venues, installations or touring, amusement parks and museums.

Hearing is believing
The Fletcher Machine was developed with both sound engineering and artistic emotion in mind, and with a no compromise focus on audio quality. Pure and pristine sound with no audible artifacts is delivered. This makes the Fletcher Machine the first choice in any immersive application, even for the most demanding environments.


Stage Model

The Fletcher Machine is available as a 3U 19″ rack unit, with a 5″ color touchscreen, allowing for IP address change, levels control and other various quick checks.



Reliable Connectors
The rear of the Stage model is equipped with a complete set of reliable, high quality connectors.



Traveler Model
And for those who like to travel light, we made the Traveler model.

The Fletcher Machine is being developed by musicians and sound engineers with a high degree of knowledge and concern for the needs in real life situations. It benefits from a genuine development where sound spatialization relies on both amplitude and delay differences. Signals that are send to the loudspeakers are calculated from the objects point of view, ensuring the best spatial coherence for the listeners. The Fletcher Machine offers a complete set of OSC (Open Sound Control) and MIDI integrations, so it can be externally controlled by a mixing desk using a dedicated plugin (under development), Real Time Tracking System, or any other interface using these protocols.

Wide Coherent Listening Zone

The sound objects are perceived at their correct position in azimuth and depth wherever you are in the listening area.

Natural Sound

The Fletcher Machine offers a high degree of sound source unmasking. The music becomes easier to mix and needs less EQ and dynamic processing.

Reverb Redefined

The Core Engine of the Fletcher Machine offers an entirely newly developed reverb engine that allows for creating astonishing effects and beautiful acoustic spaces.

Highest Versatility

Your project evolving: frontal stages, front fills, surround loudspeakers, a 3D dome with elevation speakers, delay lines under balconies, a central stage. The Fletcher Machine is your preferred choice, as it brings a simple and coherent approach to all circumstances.

Spatialized Low End

With the Fletcher Machine, you can spatialize the low end. This allows for adjustable coverage with very limited loss of impact. You can instantly modify the sound and coverage of each object.

Three Rendering Modes

Minimum delay: The smallest object to output delay value is subtracted from all delay values, retaining relative offsets and minimizing overall latency.
Full Delay: The time-of-flight from the object to the output is taken into account.
No delay: Distance based amplitude panning.
Direct routing of any object to any output is also available.

Dynamic Content

Object movements can be created internally using really simple, fast and highly efficient tools; trajectories that can be individually recalled and/or jittering around an object’s position, all synchronized on tempo.

OSC And MIDI Spoken

Interfacing with a mixing desk and/or DAW is just as easy as turning a knob for snapshot recall and parameter automation. Max for Live objects are available for Ableton Live users; a dedicated VST plugin is being developed.

Tracking System Integration

TTA Stage Tracker and Cast BlackTrax have already been interfaced with the Fletcher Machine, allowing for automatic position tracking. More systems will interface with AFM in the near future.


Form FactorSmall Form FactorSmall Form Factor3U / 19'' rack3U / 19'' rack
Front Panel Touch Screen
Audio InterfaceDanteTM / AES67 or AVB / MADIDanteTM / AES67 or AVB / MADIDanteTM / AES67 or AVB / MADIDanteTM / AES67 or AVB / MADI
Sample Rate (kHz)44 / 48 / 9644 / 48 / 9644 / 48 / 9644 / 48 / 96
Number of Inputs326464128
Number of Outputs323264128
Latency @ 48 & 96 kHz (ms)1,331,331,331,33
Objects Processing
Gain -84 to +12 dB
Polarity 0 / 180°
4-Band PEQ plus Low Cut and High Shelf
Compressor Ratio 1:1 to 20:1
Delay up to 300 ms
Object Visible / Hidden in Main View
Object Positioning
Manual or external Control via OSC Messages
Embedded 2D/3D Trajectory Generator with fast Design
Single / Loop Trajectory Modes with Sync Trigger
Individual Trajectory recall
Minimum Delay: Closest Output with min. Latency
Full Delay: Min. Delay + Time of Flight from Object to closest Output
No Delay - Amplitude is calculated for Object to Output Distance
Direct Routing to any Number of Outputs
Rendering Mode selectable per Object / per Loudspeaker Layer
Adjustable Object Width
Variable Distance Attenuation (0 to 6 dB per doubling of Distance)
Variable Atmospheric Absorption (0 - 100%)
Reverb Engine
High Quality Impulse Response Engine
Stereo IRs or Internal Frontal / Surround / 3D
Variable Pre-Delay (0 - 300 ms)
4-Band PEQ plus Low Cut and High Shelf
Speaker Processing
Gain -84 to +12 dB
Number of Layers46810
8-Band PEQ plus Low Cut and High Shelf per Group
Additional Delay up to 300 ms
On the fly Speaker adding
Number of Pre / Post Fader Auxiliary Sends4444
4-Band PEQ plus Low Cut and High Shelf
Number of VCA-like Level Controllers8888
All Object Levels grouped by 16 per Page
Send on Fader for Speakers, Aux, Reverb and VCAs (if applicable)
Dedicated Page for Solo in Place
Custom Fader Page
Remote Control
Dedicated Remote Controller MacOS, Win10, 11
MIDI / OSC Implementation
Power Supply
Universal 100-240 VAC, 50-60 Hz
Redundant, hot swappable Power Supply
Dimensions & Weight
Dimensions H x W x D (mm)270 x 110 x 200270 x 110 x 2003U x 19’’ x 4503U x 19’’ x 450
Weight (kg)3,23,213,213,2

The Fletcher Machine offers a user friendly interface, that was thought of much like a mixing desk. Object positioning is facilitated with a touchscreen based interface. It includes an easy to use yet complete set of mixing functionalities, including object Eq, compressor, auxiliary sends, adjustable distance attenuation and atmospheric absorption, easy to set, synchronize and recall individual trajectories, continuous or discrete position jitter, object grouping and functions linking, 8 VCA-style faders, up to 10 loudspeaker layers (depending on version), loudspeaker positioning in 3 dimensions with Blueprint import, output Eq, delay, crossover and many more.