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A no-input mixing board (abbreviated as NIMB) is an analog mixing desk in which one or more outputs are routed back into one or more of its inputs, forming a feedback loop within the circuit that manifests as audible oscillations. Thismachine has a unique sound palette that is easily recognisable: oscillations ranging from slow to rapid, high-pitched squeaks, low thumps, mechanical chirps, and flutters—things that sound intentional but not often done intentionally.
The no-input mixing board receives no external input; it operates entirely within its own circuitry. Some players extend the setup with limiters or use FX units and pedals to shape the signals before or after they are routed back into the board, introducing sonic variety and, in some cases,further unpredictability to this non-instrument. In these works, I experimented with a mixing board by testing various feedback loop configurations between its outputs and inputs.
Rather than following the established approaches used by many artists with no-input mixing boards, I took a more intuitive and experimental path, making decisions about what to add or remove from the setup based on the musical results. This process involved intensive practice with different configurations to discover the sounds of the machine coupled with external tools, recording and listening back to improvisation sessions and performing.
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