A subset of citation-tone f0 recordings, used as the running example
across vignettes, function @examples blocks, and the Shiny app's
"Try with our sample data" button. Available after
library(shinytone) thanks to LazyData: true in DESCRIPTION.
Format
A data frame with 38,808 rows and 12 columns:
- token
Unique identifier for each recorded token / syllable. Rows belonging to the same contour share a token.
- index
Sample index within each token, starting from 1.
- time
Time in seconds within the token.
- f0_Hz
Fundamental frequency in Hz.
- intensity
Sample intensity (dB).
- speaker
Speaker ID (13 speakers in total).
- char
Chinese character corresponding to the syllable.
- position
Position of the syllable in its source utterance.
- start_time
Start time of the token within the source recording.
- tone
Tone category (integer codes 1-6 in this dataset).
- ipa
IPA transcription of the syllable's vowel.
- vowel
Coarse vowel category.
Source
Xu, C. (2025). Plastic Mandarin tones: regional identity in prosody. Phonetica, 82(5), 331–362. doi:10.1515/phon-2025-0001
Examples
data(sample_f0)
str(sample_f0)
#> 'data.frame': 38808 obs. of 12 variables:
#> $ token : chr "dc102椅1s10.0125" "dc102椅1s10.0125" "dc102椅1s10.0125" "dc102椅1s10.0125" ...
#> $ index : int 1 2 3 4 5 6 7 8 9 10 ...
#> $ time : num 0.09 0.105 0.12 0.135 0.15 0.165 0.18 0.195 0.21 0.225 ...
#> $ f0_Hz : num 246 246 248 249 250 ...
#> $ intensity : num 69.4 71.5 72.5 72.9 73.2 ...
#> $ speaker : chr "dc102" "dc102" "dc102" "dc102" ...
#> $ char : chr "椅" "椅" "椅" "椅" ...
#> $ position : int 1 1 1 1 1 1 1 1 1 1 ...
#> $ start_time: num 10 10 10 10 10 ...
#> $ tone : int 3 3 3 3 3 3 3 3 3 3 ...
#> $ ipa : chr "i" "i" "i" "i" ...
#> $ vowel : chr "i" "i" "i" "i" ...
# Per-speaker token counts
table(sample_f0$speaker)
#>
#> dc102 dc103 dc104 dc105 dc106 dc107 dc110 dc111 dc112 dc113 dc114 dc115 dc117
#> 3024 3003 2982 2478 3024 3024 3024 2961 3024 3108 3045 3024 3087