Simple Explanation

DSP is a way of changing sound using computer chips instead of physical parts—like adding effects or fixing audio problems digitally.

Concise Technical Definition

The manipulation of audio signals in the digital domain using algorithms and numerical computation, typically through specialized hardware or software.

Layman-Friendly Analogy

Think of DSP like using Photoshop for sound—applying digital tools to clean up, adjust, or enhance audio.

Industry Usage Summary

DSP is used in home theaters, car audio, headphones, and studio gear to perform tasks like EQ, delay, bass management, room correction, and surround decoding. Most modern AV receivers and smart speakers rely heavily on DSP.

Engineering Shortcut

Audio processing via math (digital domain) instead of analog circuitry.

Full Technical Explanation

Digital Signal Processing (DSP) refers to the analysis, modification, or synthesis of signals—such as audio—in the digital domain. Unlike analog processing, where changes are made to the electrical signal itself, DSP manipulates a numerical representation of the signal using algorithms. Common applications include equalization, dynamic range compression, delay effects, filtering, crossover management, and spatial audio enhancements. DSP is implemented via microcontrollers, dedicated DSP chips, or software plug-ins. It's essential for modern audio systems due to its precision, repeatability, and flexibility.