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Subjective Comparison between Stereo and Binaural Processing from B-Format Ambisonic Raw Audio Material

Using audio recorded in Ambisonic B-format from a soundfield microphone and processed through both stereo and binaural tools, a subjective comparison is made. Hearing tests were performed taking into account personal experience and preference, as well as some spatial attributes concepts defined in previous works. Aiming to evaluate the real effectiveness of binaural processing, this work considers the possibility of distributing contemporary music, originally developed for Ambisonic reproduction, through either conventional stereo or a method of high fidelity spatial processing directed specifically to reproduction through headphone systems, based on binaural technology. The sound images represented in both binaural and stereo processing are examined. Spatial attributes like wideness, depth, naturalness and presence are evaluated.

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