Revision as of 10:45, 21 April 2017

DSP Audio Effect Applications

by Thomas Stepp

Introduction

If you listen to music, there's a guarantee that you will not hear the exact voice of a singer or the immediate output of an instrument. Instead musicians and vocalists use effects to enhance their sound, craft a unique tone, and as a tool to express themselves.

Some commonly used effects are reverb (to sound like you are playing in a large room), distortion (to achieve a harsher tone and add harmonics), and delay (to create an echo or repeating effect). Many of these were initially created through analog circuits, but it is increasingly more popular to use digital implementations as technology improves and becomes cheaper.

Analog Effects

Moving to Digital World

Conclusion

References

Stanford PowerPoint with Matlab examples: [1]
Texas Instruments PowerPoint with block diagrams: [2]
Bradley project for real-time audio effects: [3]
McGill book for Digital Audio Effects: [4]
Blog post from dubspot music communinty: [5]

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