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1. Analog Distortion: This is an easy circuit to implement with an amplifier and clipping diodes. <br> | 1. Analog Distortion: This is an easy circuit to implement with an amplifier and clipping diodes. <br> | ||
(To do: insert circuit diagram, input and output signals) <br> | (To do: insert circuit diagram, input and output signals) <br> | ||
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2. Analog Delay: This is a difficult circuit to implement. You have to use a delay line IC and it is still hard to have a good signal to noise ratio in this scenario. <br> | 2. Analog Delay: This is a difficult circuit to implement. You have to use a delay line IC and it is still hard to have a good signal to noise ratio in this scenario. <br> | ||
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| + | File:Example.jpg|Delay Circuit | ||
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(To do: insert block diagram) <br> | (To do: insert block diagram) <br> | ||
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| + | File:Example.jpg|Distortion Block Diagram | ||
2. Digital Delay: Much easier in the digital world compared to the analog world. <br> | 2. Digital Delay: Much easier in the digital world compared to the analog world. <br> | ||
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(To do: insert block diagram) <br> | (To do: insert block diagram) <br> | ||
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Revision as of 13:11, 23 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
1. Analog Distortion: This is an easy circuit to implement with an amplifier and clipping diodes.
(To do: insert circuit diagram, input and output signals)
Distortion Circuit
2. Analog Delay: This is a difficult circuit to implement. You have to use a delay line IC and it is still hard to have a good signal to noise ratio in this scenario.
Delay Circuit
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- == Digital World ==
Distortion Block Diagram
Delay Block Diagram
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- == Conclusion ==
- While audio effects were historically made with analog circuits, digital technology has become cheap and easy to implement. Modeling various audio effects is quite simple and in some cases easier to implement than the hardware counterparts.
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- == References ==
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