Real-time pitch shifting using a general purpose microcontroller

Szymon Buś; Konrad Jędrzejewski

doi:10.1117/12.2281025

7 August 2017 Real-time pitch shifting using a general purpose microcontroller

Szymon Buś, Konrad Jędrzejewski

Proceedings Volume 10445, Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2017; 104456E (2017) https://doi.org/10.1117/12.2281025
Event: Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2017, 2017, Wilga, Poland

Abstract

In this paper, a real-time implementation of pitch shifting with use of phase vocoder algorithm is presented. The goal was to create a system that would allow to process audio signal in real time with use of a general purpose microcontroller. The task was a challenge due to relative complexity of the algorithm and limited computational capacity of the microcontroller, whose architecture is by nature much more universal than that of dedicated digital signal processors. The results of experiments with the developed system are presented and discussed in the paper.

Citation Download Citation

Szymon Buś and Konrad Jędrzejewski "Real-time pitch shifting using a general purpose microcontroller", Proc. SPIE 10445, Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2017, 104456E (7 August 2017); https://doi.org/10.1117/12.2281025

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