Design of Audio Spectrum Display Based on ARM

Abstract:

How to realize the audio spectrum displayer system based upon ARM is introduced in detail. The system includes functions as collecting, processing, displaying after transforming of audio signals. With sound collecting, ARM technology and FFT algorithm, the design builds a real-time collecting spectrum display system, which can be put into various applications in which sounds need collecting and analyzing. The design consists of hardware system and software system. The former mainly includes the collecting and processing of sounds, the minimum system, electronic power and displayer module, while the later is to display the data transformed by ADC with FFT on the displayer. The design has been proved real-time and accurate after test.

• Periodical: Applied Mechanics and Materials (Volumes 457-458)
• Pages: 883-887
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.457-458.883
• Online since: October 2013
• Authors: Li Na Duan, Jin Zhao
• Keywords: ARM, Audio, FFT, Spectrum Display

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