Fewer-channel arrays were judged against a 24-speaker reference for envelopment impairment

Evidence

Hiyama et al. (2002) conducted subjective evaluations of how closely the sound of a reference sound field, generated by a circular array of 24 loudspeakers, could be approached by arrays of smaller numbers of loudspeakers. Listeners were required to judge the degree of impairment in perceived envelopment (LEV) for each of the loudspeaker configurations when compared to the 24-loudspeaker reference array at 15° intervals. The reference array was assumed to have no impairments. All loudspeakers radiated uncorrelated noise. — Toole, Floyd E, Sound reproduction- the acoustics and…, 730

Categorization

• XREF: connects to: Minimum speaker count maximizes intelligibility; directivity can substitute for fewer sources — David Howard, Jamie Angus, coustics and Psychoacoustics, 2459; Listener-level channels, not height channels, drive spaciousness and envelopment — Toole, Floyd E, Sound reproduction- the acoustics and…, 848; Adding more loudspeakers can worsen speech intelligibility by shrinking critical distance — David Howard, Jamie Angus, coustics and Psychoacoustics, 2454
• yield-rescued: below the book’s yield-target cutoff, included anyway for connecting to: Minimum speaker count maximizes intelligibility; directivity can substitute for fewer sources — David Howard, Jamie Angus, coustics and Psychoacoustics, 2459; Listener-level channels, not height channels, drive spaciousness and envelopment — Toole, Floyd E, Sound reproduction- the acoustics and…, 848; Adding more loudspeakers can worsen speech intelligibility by shrinking critical distance — David Howard, Jamie Angus, coustics and Psychoacoustics, 2454

Broader Connections

• Adding more loudspeakers can worsen speech intelligibility by shrinking critical distance #complicates (0.75) — David Howard, Jamie Angus, coustics and Psychoacoustics, 2454