psychotools (version 0.4-0)

SoundQuality: Quality of Multichannel Reproduced Sound

Description

Paired comparison judgments of 40 selected listeners with respect to eight audio reproduction modes and for types of music.

Usage

data("SoundQuality")

Format

A data frame containing 783 observations on 6 variables.

id

Factor. Listener ID.

time

Factor. Listening experiment before or after elicitation and scaling of more specific auditory attributes.

progmat

Factor. The Program material: Beethoven, Rachmaninov, Steely Dan, Sting.

repet

The repetition within each time point.

session

The experimental session coding the presentation order of the program material.

preference

Paired comparison of class paircomp. Preferences for all 28 paired comparisons from 8 audio reproduction modes: Mono, Phantom Mono, Stereo, Wide-Angle Stereo, 4-channel Matrix, 5-channel Upmix 1, 5-channel Upmix 2, and 5-channel Original.

Details

The data were collected within a series of experiments conducted at the Sound Quality Research Unit (SQRU), Department of Acoustics, Aalborg University, Denmark, between September 2004 and March 2005.

The results of scaling listener preference and spatial and timbral auditory attributes are reported in Choisel and Wickelmaier (2007).

Details about the loudspeaker setup and calibration are given in Choisel and Wickelmaier (2006).

The attribute elicitation procedure is described in Wickelmaier and Ellermeier (2007) and in Choisel and Wickelmaier (2006).

The selection of listeners for the experiments is described in Wickelmaier and Choisel (2005).

References

Choisel, S. & Wickelmaier, F. (2006). Extraction of auditory features and elicitation of attributes for the assessment of multichannel reproduced sound. Journal of the Audio Engineering Society, 54(9), 815-826.

Choisel, S. & Wickelmaier, F. (2007). Evaluation of multichannel reproduced sound: Scaling auditory attributes underlying listener preference. Journal of the Acoustical Society of America, 121(1), 388-400.

Wickelmaier, F. & Choisel, S. (2005). Selecting participants for listening tests of multichannel reproduced sound. Presented at the AES 118th Convention, May 28-31, Barcelona, Spain, convention paper 6483.

Wickelmaier, F. & Ellermeier, W. (2007). Deriving auditory features from triadic comparisons. Perception & Psychophysics, 69(2), 287-297.

See Also

paircomp

Examples

data("SoundQuality", package = "psychotools")
summary(SoundQuality$preference)
ftable(xtabs(~ time + repet + progmat, data = SoundQuality))