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Subjective Evaluation of High Resolution Recordings in PCM and DSD Audio Formats

High-resolution audio production and consumption are increasing attraction supported by releases of the relatively affordable audio recorders from multiple manufacturers and broader bandwidth of the Internet. However, differences in audio quality between high-resolution audio formats are still not well known, especially between the different audio formats available for the audio recorders. In order to evaluate the differences between subjective impression of the sounds recorded using high resolution audio formats, three audio formats—PCM (192 kHz/24 bits), DSD (2.8 MHz), and DSD (5.6 MHz)—recorded with multiple studio-quality audio recorders were evaluated in a double-blind A/B comparison listening test. Six sound programs evaluated by forty-six participants on eight attributes revealed statistically significant differences between PCM and DSD but not between the two sampling frequencies (2.8 MHz and 5.6 MHz) of DSD.

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