An Intuitive Design Approach For Implementing Real Time Audio Effects
This addresses a domain-specific problem for audio effect developers, but it is incremental as it applies existing tools and methods to a specific hardware setup.
The paper tackled implementing real-time audio effects on a digital signal processor by exploiting compatibility between MATLAB and Code Composer Studio to develop Simulink models, resulting in designs using two scheduling techniques and a COCOMO analysis to justify industrial viability.
Audio effect implementation on random musical signal is a basic application of digital signal processors. In this paper, the compatibility features of MATLAB R2008a with Code Composer Studio 3.3 has been exploited to develop Simulink models which when emulated on TMS320C6713 DSK generate real time audio effects. Each design has been done by two different asynchronous scheduling techniques: (i) Idle task Scheduling and (ii) DSP/BIOS task Scheduling. A basic COCOMO analysis has been done for the generated code to justify the industrial viability of this design approach. KEYWORDS: Musical signal processing, Real time Audio effects, Echo, Stress Generation, Reverberation, Reverberated Chorus, Real Time Scheduling.