R: Tone perception data

tonedata {fpc} | R Documentation

## Tone perception data

### Description

The tone perception data stem from an experiment of Cohen (1980) and have been analyzed in de Veaux (1989). A pure fundamental tone was played to a trained musician. Electronically generated overtones were added, determined by a stretching ratio of `stretchratio`. `stretchratio=2.0` corresponds to the harmonic pattern usually heard in traditional definite pitched instruments. The musician was asked to tune an adjustable tone to the octave above the fundamental tone. `tuned` gives the ratio of the adjusted tone to the fundamental, i.e. `tuned=2.0` would be the correct tuning for all `stretchratio`-values. The data analyzed here belong to 150 trials with the same musician. In the original study, there were four further musicians.

### Usage

    data(tonedata)

### Format

A data frame with 2 variables `stretchratio` and `tuned` and 150 cases.

### Source

Cohen, E. A. (1980) Inharmonic tone perception. Unpublished Ph.D. dissertation, Stanford University

### References

de Veaux, R. D. (1989) Mixtures of Linear Regressions, Computational Statistics and Data Analysis 8, 227-245.

[Package fpc version 2.1-10 Index]