Speech and voice range profiles of adults with untrained normal voices: methodological implications.

Automatic recordings were made of speech and voice range profiles for 63 vocally healthy Australian men and women without voice training (30 males and 33 females aged 21 to 65 years). Test-retest reliability, evaluated for a subgroup, was high. Speech range profile results were consistent with results reported by others. However, voice range profiles were larger than shown in several previous studies. Nevertheless, voice range profiles were consistent with results reported for a recent study that used a similar elicitation and recording protocol and similar equipment. Results are discussed with reference to methodological issues important for reliable phonetogram recordings. The data may also be clinically useful for comparisons between disordered and healthy voices if similar equipment and elicitation and recording protocols are used.