Study measures loudness differences of vowels in voices, indicating timbre effects on sound perception.
This is a part of loudness study on the so-called pitched timbre attempted on a loudness comparison between vowels within voices. Five sustained oral vowels are discriminated in respect of their loudness. It is shown that speech-sounds well matched in VU level with respect to vowel as well as voice for the purpose of timbre study of vocalic voices, are not always matched in loudness.
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FUKUMURA et al. (1955) studied this question.
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