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Sonification of Spectroscopic analysis of food data using FM Synthesis

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Food safety is a global concern, and with the rise of automation, novel methods of categorising, sorting, and discriminating food types are being explored. These techniques require a reliable method for rapidly identifying food sources. In this paper, we propose a method of spectroscopic food analysis, whereby audio data is generated from spectra to allow users to discriminate between two classes of a given food type. To do this, we develop a system which first extracts features and applies dimensionality reduction, then maps them to the parameters of a synthesizer. To optimise the process, we compare Amplitude Modulation (AM) and Frequency Modulation (FM) synthesis, as applied to two real-life datasets to evaluate the performance of sonification as a method for discriminating data. The results indicate that the model is able to provide relevant auditory information, and most importantly, allows users to consistently discriminate between two classes of spectral data. This provides a complementary tool to supplement current food detection methods.

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AES - Audio Engineering Society