The capabilities of modern programs and computers, as well as their relative affordability, make it possible to perform serious work on processing audio material - including professional work - not only on a specialized sound workstation in a recording studio, but also on a personal computer at home studio. The book you are holding in your hands discusses the basic methods of sound processing using a personal computer compatible with an IBM PC. A detailed description of their use is given using the example of the most common sound processing programs in Russia running under the Microsoft Windows operating system: Sound Forge, WaveLab, SAW Plus 32, Samplitude 2496, Cakewalk Pro Audio, as well as the music notation program Finale 98.