lah16: Lahdelma & Eerola (2016)

In pmcharrison/inconData: Datasets for Simultaneous Consonance Perception

Description

This dataset is reproduced from the supplementary materials of \insertCiteLahdelma2016;textualinconData.

Details

The dataset is represented as a tibble with the following columns:

• label: Chord label.

• num_ratings: Number of times that the chord was rated.

• rating: Mean consonance rating. Higher values indicate higher consonance.

• rating_sd: Standard deviation of consonance ratings.

• rating_se: Standard error of the mean consonance rating, computed under the central limit theorem.

• pi_chord_type Vector of chord pitches, each expressed relative to the bass pitch. Uses the pi_chord_type representation from the hrep package.

• pi_chord Vector of chord pitches, each expressed as MIDI note numbers. Uses the pi_chord representation from the hrep package. These chord pitches are hypothetically averaged over the different transpositions observed in the stimulus set; unfortunately, insufficient data are provided in the supplementary materials of \insertCiteLahdelma2016;textualinconData to estimate these values with certainty. Here, we give the bass note of each chord a value of 67, working from the following passage in \insertCiteLahdelma2016;textualinconData: "All selected chords were transposed with a randomization across two octaves (+/- 5 semitones around C4 and C5, the possible chord roots being all equally likely to occur within this range)." We therefore selected G4/67 as the common bass/root note, it being the middle of this randomisation range.

Note

In the original experiment, chords were played at a variety of transpositions. Unfortunately, insufficient information is provided in the supplementary data to recover which responses correspond to which transpositions. Here, therefore, responses are averaged over transpositions, and an estimate is made of an average pitch height to assign to the chord (see pi_chord column.)

The table uses representations from the hrep package. Loading the hrep package improves the way that chord objects are displayed.

References

\insertAllCited

pmcharrison/inconData documentation built on June 7, 2019, 1:54 a.m.