Università degli Studi di Catania

The corrugating phenomena Transverse and longitudinal waves; The quantities characterizing the wave phenomena wavelength l, the n frequency, the pulsation w, amplitude; damped and forced oscillations; spectrum; Intensity of a wave; Reflection and refraction; Total reflection; Acoustic waves, tone height, intensity; Levels of loudness; sensitivity human ear; Doppler effect - the relative motion of the source-observer; moving source - stationary observer; electromagnetic waves. Transducers Definition; active and passive transducers; actuator; Some physical principles used in the making of the sensors: Ohm's Law: In an electric circuit in which a resistor is present the relationship between the electrical quantities; electromagnetic induction principle: In an electric circuit consisting of a resistance coil nothing; the magnetic equation; piezoresistive effect; thermoresistive effect; photoelectric effect; photovoltaic effect; Hall effect; thermoelectric effect; A / D and D / A Instrumentation for the 'audiometry Impedance analysis: physical principle; General operating principle; block diagram, examination: tympanometry, reflexology; use and operation of the instrument, characteristic graphs; formula acoustic impedance; recording techniques; the tympanogram Excel: tool for data analysis Definition of cell, spreadsheet and file; The anchors; Use of special keys; The move handle; relative and absolute references; Formatting of the spreadsheet (date, currency, numeric, general, and c.); Editing a worksheet (only copy the format of a cell); input area and output; The formula bar; The formulas (Sum, Average, Max, Min, percentage etc.). The graphs (histograms, pie charts, etc.). Changing a chart; Using Excel as Data Base; Field and Record definition; Sorting Data; "= IF" function; Function "= Conta.Se" formulas for statistical analysis; filters; The passage of formulas and data from other spreadsheets; The passage of formulas and data from other files. Access: a tool for data storage: Introduction to databases; Elements of an Access database; Open an existing database; The Database window; Create an empty database; Creating tables; Create a table in Datasheet view; Create a table in Design view; Save the tables; The masks; Creating masks; Add new record with a mask; Change the data in a mask; Delete records; Sort records; Filter records; The data sheets; Set the width of the columns; Operations on a data sheet; Select fields and records; in which the columns display options; Queries; Create a query; The Simple Query Wizard; Design view; Query; The reports; Find information; Print forms, reports, and data sheets; Relations; Overview of Access Advanced. Audacity: Programme for analysis spectra Import and export audio files; edit audio tracks; manual selection; Automatic selection; copy, cut and paste; remove it; hush; mixing; growth, division and reduction of the channels; from stereo to mono; a stereo track; from mono to stereo; record live; record your own voice; spectra and harmonics; harmonic analysis and spectra. Comparison of spectra

AUDIOFONIATRIA E BIOINGEGNERIA

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