Adjusnoise

Adjusnoise refers to a phenomenon in audio engineering where small changes in the gain or level control of an audio signal result in a larger-than-expected change in perceived loudness.

This effect occurs when an audio system or device exhibits non-linear amplification characteristics. In a linear system, an increase or decrease in the gain would directly translate to an equal increase or decrease in the signal amplitude. However, in a non-linear system, small adjustments can lead to disproportionately large variations in the signal's power or energy.

Adjusnoise is more pronounced in audio equipment that employs analog or vacuum tube-based circuits. These components can exhibit complex non-linearity due to the physical characteristics of the components, such as non-ideal amplifier characteristics, power source fluctuations, and signal-dependent resistance.

Understanding and accounting for adjusnoise is essential for precision audio mastering, mixing, and broadcasting. Audio engineers may employ various techniques to mitigate the effects, such as using peak-limiters, optical compressors, or digital signal processors. Engineered measurements, like histogram analysis, have become essential tools for developers to identify and address non-linear response.

In response to adjusnoise, designers have launched various research and developments regarding comparator look, specifications, and other protocols optimizations in response to this phenomenon, continually advancing our perspectives and deepening understanding in the continually evolving industry.