Real-time audio effects with DSP algorithms and DirectSound

Author

Anghelescu, Petre ; Angelescu, Stefan ; Ionita, Silviu

Author_Institution

Dept. of Electron., Commun. & Comput., Univ. of Pitesti, Pitesti, Romania

fYear

2014

Firstpage

35

Lastpage

40

Abstract

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.

Keywords

audio signal processing; digital signal processing chips; filtering theory; real-time systems; 3-Tap Echo; Chorus; DSP oriented algorithms; DirectSound; DirectSound library; Echo; PC sound card; Tremolo; Vibrato; audio signals; electric guitar; low pass filter; real-time audio effects; software application; software implementation; tone generator; Band-pass filters; Delays; Digital signal processing; Filtering algorithms; IIR filters; Interpolation; Mathematical model; DSP algorithms; Digital audio effects; DirectSound; Electric guitar;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Computers and Artificial Intelligence (ECAI), 2014 6th International Conference on

Print_ISBN

978-1-4799-5478-0

Type

conf

DOI

10.1109/ECAI.2014.7090207

Filename

7090207