Music Spectrum Display Based on FFT

Lin Jin; Qiang Liu

doi:10.4028/www.scientific.net/AMM.427-429.1380

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 427-429Music Spectrum Display Based on FFT

Music Spectrum Display Based on FFT

Abstract:

Using the MCU STC12C5A60S2 as the main control unit, in which the internal integration of 10 8 road A/D converter, which has high data processing speed, rich resources, can meet the requirements of general control. The development process is as follows: first to initialize A/DC, A/DC interrupt occurs for signal acquisition and the interrupt service subroutine, data stored in the specified array. The data after the acquisition, called FFT (Fast Fourier transform) spectral transform and analysis functions, and stored in corresponding array, through the LED display the collected data are displayed.

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Periodical:

Applied Mechanics and Materials (Volumes 427-429)

Pages:

1380-1383

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.427-429.1380

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Online since:

September 2013

Authors:

Lin Jin, Qiang Liu

Keywords:

Fast Fourier Transform (FFT), LED Dot Matrix, Microcontroller

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