What's the difference between audiometer and sonometer?
Audiometer
Definition:
(n.) An instrument by which the power of hearing can be gauged and recorded on a scale.
Example Sentences:
(1) Clinical measurements of the loudness discomfort level (LDL) are generally performed while the subject listens to a particular stimulus presented from an audiometer through headphones (AUD-HP).
(2) The result shows that the great majority of children recorded considerably higher discrimination scores when the tests were performed with their individual hearing aids than with the test lists presented through the audiometer and the TDH-49 earphone.
(3) In this study, white noise from a Madsen OB822 audiometer and presented via Sony MDR-V4 dynamic earphones, was used for masking.
(4) The test words in the Finnish speech discrimination test in combination with corresponding white noise were produced by equipment consisting of a high quality tape recorder, an audiometer, an amplifier and loud speakers.
(5) Proposals are made for values for the maximum outputs of audiometers.
(6) The measurements included the maximum output levels, the equivalent threshold force level (ETFL) decreases, the distortions over the whole frequency range (0.5-20 kHz) of the audiometer and the effect of different electrode positions.
(7) In the tracking method, the intensity of the stimulus from a self-recording audiometer is adjusted by the experimenter to bracket the acoustic reflex threshold as visually observed on the meter of an acoustic impedance measuring device.
(8) The frequency and intensity of the tone was matched by use of a multifrequency audiometer.
(9) Battery-operated, in-office, limited-frequency audiometers are available for under $350.
(10) Hearing thresholds before and after exposure were established with a computerized sweep frequency audiometer in the frequency range 0.8-8 kHz.
(11) Following insertion of the VT, middle ear air volume of these ears was estimated using an impedance audiometer, at 1, 3, and 6 months postoperatively, and every 3 months thereafter.
(12) Reproducibility with the EBC audiometer was better than with the AC audiometer, especially in the HF range.
(13) 97 normal subjects representing 6 age groups were tested with both conventional pure tone audiometry and high frequency audiometry (10-20 kHz) using a commercial high frequency audiometer.
(14) The audiometer delivers sound from a driver unit to the ear canal through a lossy tube and earpiece providing a source impedance essentially equal to the characteristic impedance of the tube.
(15) The measuring apparatus consisted mainly of a Békésy audiometer and an accelerometer, Brüel & Kjaer 4344.
(16) The results showed that there is a real bone-conduction effect with this audiometer throughout the high-frequency range with the different electrode positions.
(17) Recently, the 'electric bone-conduction' (EBC) audiometer (Audimax 500) has been used to measure high-frequency (HF) hearing.
(18) A micro-computer based system to simulate patient performance on pure-tone audiometry has been developed, which in conjunction with a dummy audiometer allows easy development of a student training facility.
(19) Several methods have been proposed for calibrating the bone-conduction section of an audiometer.
(20) In a factory involved in heavy industry, an investigation of noise levels was carried out; measurements were made of environmental noise, a questionnaire was given to the workers, and their hearing was tested with audiometer.
Sonometer
Definition:
(n.) An instrument for exhibiting the transverse vibrations of cords, and ascertaining the relations between musical notes. It consists of a cord stretched by weight along a box, and divided into different lengths at pleasure by a bridge, the place of which is determined by a scale on the face of the box.
(n.) An instrument for testing the hearing capacity.
Example Sentences:
(1) Measurement of noise is performed with the help of an instrument called a sonometer, which records the level of the acoustic pressure, i.e.
(2) Outer diameter and thickness of the muscular wall of canine pylorus were measured simultaneously by determining the distance between pairs of implanted ultrasonic transducers, evaluating the sonic transit time with a digital sonometer.
(3) Environmental noise levels were determined using a BK 2221 integrated precision sonometer, and temperature values were obtained from the city Meteorological Institute.
(4) Determination of hip-joint maturity using the "sonometer" is described.