Real-time audio effects with DSP algorithms and DirectSound

This paper is focused on the software implementation of DSP oriented algorithms for different audio effects, like Echo, 3-Tap Echo, Vibrato, Tremolo and Chorus. The main contribution of this research consists in a software application which is able to process in real time the audio signals received from the electric guitar using PC sound card. In addition, the application also includes a digital filter class used for implementation of a low pass filter as well as other filter types, a tone generator and the options for storing the sound samples in a .wav file. The application is written in C# language which uses DirectSound library in order to process the sound samples on a low level.