What is digital audio signal processing?

Digital audio signal processing (DSP) refers to the use of digital techniques and algorithms to manipulate audio signals. This field encompasses tasks like filtering, equalization, compression, noise reduction, and effects such as reverb or echo, all performed in the digital domain using computers or specialized hardware. DSP is used in a wide range of applications, including music production, telecommunications, hearing aids, and speech recognition. Specialists in this area often have backgrounds in computer science, electrical engineering, or audio engineering. The work combines mathematical theory with practical implementation to improve or transform audio signals.