Perceptual dimension of multi-channel electronic dance music: Repertory grid analysis

Although the production of Electronic Dance Music (EDM) in immersive formats is being explored, comprehensive perceptual guidelines for the creative process remain underdeveloped. To address this, we investigated perceptual dimensions of multi-channel EDM using Repertory Grid Technique (RGT). Ten participants evaluated 10 EDM tracks across four audio formats, ranging from conventional stereo to fully immersive systems (5.1, 5.1.4, and 7.1.4 channels). The results revealed two primary independent dimensions. This first dimension consisted of “Clarity,” “Loudness/Energy,” and “Mix Balance (vocal versus instrument).” Within this dimension, “Clarity” was found to be statistically independent from the other two attributes, showing a near-zero correlation (r = 0.06), while “Loudness/Energy'” and “Mix Balance” were moderately correlated (r = 0.68), suggesting they are perceptually related. The second dimension, including “Width,” “Envelopment,” “Punch,” and “Bass Weight,” was characterized by strong inter-correlations, such as the correlation between “Bass Weight” and “Punch” (r = 0.91) and between “Envelopment” and “Width” (r = 0.87). This statistical independence implies an evaluation framework. The first dimension represents a foundational benchmark applicable across all formats, including stereo. However, the second dimension differentiated immersive from stereo, such as “Envelopment"—most prominent in systems with height channels—intertwined with the physical sensation of bass to offer a pathway for qualitatively different experiences.