Introduction: Tinnitus is a perception of sound without external source. The exact etiology of tinnitus is not fully understood, although some researchers believe that the condition usually starts in the cochlea. The aim of this study was to determine the potential contribution of outer hair cell dysfunction to chronic tinnitus, by application of Distortion-Product Evoked Otoacoustic Emission (...

background and aim: tinnitus is a distressing symptom for which few treatments exist. low-frequency repetitive transcranial magnetic stimulation (rtms) of the temporal cortex has been proposed as a treatment for chronic tinnitus. this study determined relationship between psychoacoustic parameters such as loudness and frequency of tinnitus and outcome with rtms treatment. methods: twenty six pa...

Introduction: The noise could affect some aspects of human health, including the cognitive performance. In addition to sound pressure level and exposure time, the psychoacoustic features of noise may cause destructive effects on humans. A few recent studies have been conducted on effect of sound quality on cognitive performance. This study aims to find the noise loudness and sharpness levels as...

Traditional didjeridus have a broad range of unknown bore geometries, and consequently have advantages for examining relationships between subjective and physical parameters. This study involved 7 experienced players assessing each of 38 traditionally made didjeridus in terms of 8 subjective parameters. Their assessments were then correlated with detailed measurements of acoustic input impedanc...

Parkinson's disease related speech and voice impairment have significant impact on quality of life measures. LSVT(®)LOUD voice and speech therapy (Lee Silverman Voice Therapy) has demonstrated scientific efficacy and clinical effectiveness, but musically based voice and speech therapy has been underexplored as a potentially useful method of rehabilitation. We undertook a pilot, open-label study...

An empirical equation from Riesz's classic study on difference thresholds is treated in a new manner. Reformulating the expression for the Weber fraction allows one to account for the shape of the loudness function at different frequencies. Furthermore, the emerging loudness function unifies both the commonly used power and logarithmic laws of sensation. In principle, equal loudness contours ca...

OBJECTIVES/HYPOTHESIS The present study aims to evaluate the degree of anterior-posterior and medial supraglottic laryngeal compression in healthy singers of different voice classifications while singing different pitches, loudness, and phonatory tasks. STUDY DESIGN Prospective study. METHODS Thirty-six classically trained singers (11 sopranos, 11 mezzo-sopranos, six tenors, and eight barit...