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. Author manuscript; available in PMC: 2013 Jan 1.
Published in final edited form as: Child Dev. 2011 Dec 19;83(1):236–250. doi: 10.1111/j.1467-8624.2011.01700.x

Acoustic measurements of the experimenter’s happy versus sad speech for each acoustic dimension in each experiment, and happy/sad ratios.

A ratio of one suggests no meaningful between-conditions difference for that dimension; values above one indicate a greater mean value for the happy stimuli. Pitch values are in Hz, intensity in dB, duration in seconds. Pitch ratios were computed over ERB values (see text) and intensity and duration ratios were computed over log-transformed values.

Experiment 1 Experiment 2 Experiment 3
Cue Happy Sad Ratio Happy Sad Ratio Happy Sad Ratio
Pitch mean 417 256 1.41 380 230 1.44 348 243 1.30
Pitch SD 130 52 2.29 144 50 2.42 140 41 2.65
Pitch max. 746 387 1.50 749 395 1.50 704 324 1.64
Pitch min. 211 163 1.22 201 155 1.23 199 181 1.08
Intensity 72.7 71.3 1.00 71.9 71.0 1.00 70.1 70.1 1.00
Duration 3.30 3.24 1.02 3.15 3.12 1.01 3.40 3.41 1.00