A sine wave is characterized by its frequency — the number of cycles per second, or its wavelength — the distance the waveform travels through its medium within a period, and the amplitude — the size of each cycle. A pure tone has the unique property that its waveshape and sound are changed only in amplitude and phase by linear acoustic systems.
The Fourier theorem states that any periodic waveform can be approximated as closely as desired as the sum of a series of sine waves with frequencies in a harmonic series and at specific phase relationships to each other.
The lowest of these frequencies (the fundamental frequency), which is also the inverse of the period of the waveform, determines the pitch of the tone, which is perceived by the human hearing. In music, notes are assigned to tones with different fundamental frequencies, in order to describe the pitch of played tones.
Prevalence of Acoustic Neuroma Associated With Each Configuration of Pure Tone Audiogram in Patients With Asymmetric Sensorineural Hearing Loss
Sep 01, 2010; Objectives: The criteria have not yet been established for identifying the configuration of a pure tone audiogram constituting...
Correlation of pure tone audiogram results and hearing benefit of tympanoplasty for chronic suppurative otitis media
Apr 01, 2000; The aim of this study was to evaluate the correlation between pure tone audiogram results and the subjective sensation of hearing...