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Phonetography has been defined by SCHUTTE and SEIDNER in 1983. Nevertheless publications on phonetography go back to the thirties. Due to publications in the last decade and the development of computer phonetography this testing method has been used for various purposes in voice evaluation. This article gives a historical background, with the different ways of phonetogram recording and describes variables who have their effect on phonetogram results and interpretation. Secondly the range of application with normative and reference phonetograms is discussed.

The consent about the necessity of perceptual evaluation in the assessment of patients with voice disorders is almost unanimous. This is not the case with regard to the method or scale. This article gives an outline of historical backgrounds and presents a survey of contemporary perceptual rating scales. Reliability and influencing factors are discussed and recommendations are made with respect to clinical use.