Auditory Systems in Insects - Cold Spring Harbor Monograph Archive
... incident sound waves below one microsecond (Mason et al 2001). It is commonly thought that insects cannot evolve large bodies, and this has been a key constraint in the evolution of insect audition, one that has likely fostered innovation. The laws of physical acoustics also apply to tiny insects, o ...
... incident sound waves below one microsecond (Mason et al 2001). It is commonly thought that insects cannot evolve large bodies, and this has been a key constraint in the evolution of insect audition, one that has likely fostered innovation. The laws of physical acoustics also apply to tiny insects, o ...
Response from the exposed intracranial human auditory nerve to
... fibers, the responses from fibers with CF below twice the frequency of the stimulus tones are probably unlikely to contribute significantly to the gross response, which therefore can be assumed to be a result of the phase-locked activity in fibers with CF above twice the frequency of the tone. Only ...
... fibers, the responses from fibers with CF below twice the frequency of the stimulus tones are probably unlikely to contribute significantly to the gross response, which therefore can be assumed to be a result of the phase-locked activity in fibers with CF above twice the frequency of the tone. Only ...
Nathos Sound Recover Field Study_Layout 1
... to be due to both the level of high-frequency audibility the listener is receiving as well as the listener’s ability to extract useful information from the audible signals. Some studies suggest that listeners who are provided with audibility at frequencies where hearing levels are severe and/or slop ...
... to be due to both the level of high-frequency audibility the listener is receiving as well as the listener’s ability to extract useful information from the audible signals. Some studies suggest that listeners who are provided with audibility at frequencies where hearing levels are severe and/or slop ...
Delta Audiology Concept
... must be reduced at all times. This requires a rethinking of the conventional approach to amplification. When a hearing instrument is designed, there are certain implications that must be taken into account. There is a trade off between the optimum performance of the product and the acceptable level ...
... must be reduced at all times. This requires a rethinking of the conventional approach to amplification. When a hearing instrument is designed, there are certain implications that must be taken into account. There is a trade off between the optimum performance of the product and the acceptable level ...
NEURAL ENCODING OF SOUND SENSATION EVOKED BY
... stimulation at the lowest frequencies cedure is represented by the broken En, (below 100 Hz), and differenccs in tonality over the intermediate range (below about 100 Hz) in all sub- (above 100 Hz to 500-1000 Hz). At fiejects. At higher frequencies, the sen- quencies above about 500-600 Hz, the sati ...
... stimulation at the lowest frequencies cedure is represented by the broken En, (below 100 Hz), and differenccs in tonality over the intermediate range (below about 100 Hz) in all sub- (above 100 Hz to 500-1000 Hz). At fiejects. At higher frequencies, the sen- quencies above about 500-600 Hz, the sati ...
Rachela Greenman 23
... electromechanical feedback… it increases both the amplitude and frequency selectivity of basilar-membrane vibrations for low-level sounds” (Mahendrasingam et al. 2010). For this reason, the outer-hair-cell region is also known as the cochlear amplifier and, as such, is extremely important in the dis ...
... electromechanical feedback… it increases both the amplitude and frequency selectivity of basilar-membrane vibrations for low-level sounds” (Mahendrasingam et al. 2010). For this reason, the outer-hair-cell region is also known as the cochlear amplifier and, as such, is extremely important in the dis ...
Structure and Function of the Auditory System
... energy that would result if the airborne sound waves impinged directly on the fluid-filled inner ear. Approximately 25 to 27 dB of the estimated 30-dB loss has been compensated for by the middle ear. The ability of the middle ear system to amplify or boost the sound pressure depends on signal freque ...
... energy that would result if the airborne sound waves impinged directly on the fluid-filled inner ear. Approximately 25 to 27 dB of the estimated 30-dB loss has been compensated for by the middle ear. The ability of the middle ear system to amplify or boost the sound pressure depends on signal freque ...
THE EFFECT OF NOISE-INDUCED HEARING LOSS ON DENTISTS
... Sciences, Tehran, Islamic Republic offrail. ...
... Sciences, Tehran, Islamic Republic offrail. ...
Hearing in fish and their reactions to sounds from offshore wind farms
... with 1 hydrophone. Close to a sound source, in the so-called ‘acoustic flow near-field’, 1 hydrophone does not suffice to describe the magnitude of the velocity component and either a second hydrophone or an accelerometer is needed. Further complications of acoustic propagation occur due to interfer ...
... with 1 hydrophone. Close to a sound source, in the so-called ‘acoustic flow near-field’, 1 hydrophone does not suffice to describe the magnitude of the velocity component and either a second hydrophone or an accelerometer is needed. Further complications of acoustic propagation occur due to interfer ...
The Loudness War - Audio Engineering Society
... Its relative lack of processing also helped it win a Grammy for Best Engineered Album, Non-Classical [16]. One can only speculate whether the album might have sold even more if it had been 3 dB louder, or, conversely, if sales might have benefited from additional dynamic range. In the Evergreen proj ...
... Its relative lack of processing also helped it win a Grammy for Best Engineered Album, Non-Classical [16]. One can only speculate whether the album might have sold even more if it had been 3 dB louder, or, conversely, if sales might have benefited from additional dynamic range. In the Evergreen proj ...
Convergent Evolution Between Insect and Mammalian Audition
... and show rigid connection (Fig. 3G). This rocking behavior is observed for four-cycle tones at any frequency (5 to 50 kHz) and broadband sweeps (fig. S3). This morphology and mechanical response reveals that the TM-TP system (14) acts as an impedance converter analogous to the middle ear ossicles de ...
... and show rigid connection (Fig. 3G). This rocking behavior is observed for four-cycle tones at any frequency (5 to 50 kHz) and broadband sweeps (fig. S3). This morphology and mechanical response reveals that the TM-TP system (14) acts as an impedance converter analogous to the middle ear ossicles de ...
noise-induced hearing loss
... frequencies come to the eardrum increased up to 20 dB. With the greater sensitivity of cilia to the higher frequency sounds, it is expected that cilia responsible for the adoption of sound frequencies around 4 kHz are the most vulnerable. In acoustic trauma, which is caused by short exposure to inte ...
... frequencies come to the eardrum increased up to 20 dB. With the greater sensitivity of cilia to the higher frequency sounds, it is expected that cilia responsible for the adoption of sound frequencies around 4 kHz are the most vulnerable. In acoustic trauma, which is caused by short exposure to inte ...
Conditions Improve Distortion Product Otoacoustic Emission Test
... below f2, where the noise floor surrounding the emission may be higher (Gorga et al. 1993). The poor signal-to-noise ratio (SNR) might make it more difficult to measure responses in ears with normal hearing, thus driving up the false-positive rate. There are other distortion products produced as a r ...
... below f2, where the noise floor surrounding the emission may be higher (Gorga et al. 1993). The poor signal-to-noise ratio (SNR) might make it more difficult to measure responses in ears with normal hearing, thus driving up the false-positive rate. There are other distortion products produced as a r ...
A comparative study of the physiological properties of the inner ear
... (1977). T h e o n l y p r e v i o u s s t u d y o n Rhinolophus d e a l i n g w i t h the C M was c a r r i e d o u t b y S c h n i t z l e r et al. (1976). A l t h o u g h the s t u d i e s s u g g e s t e d t h a t t h e r e were p r o n o u n c e d differences b e t w e e n Rhinolophus a n d Pter ...
... (1977). T h e o n l y p r e v i o u s s t u d y o n Rhinolophus d e a l i n g w i t h the C M was c a r r i e d o u t b y S c h n i t z l e r et al. (1976). A l t h o u g h the s t u d i e s s u g g e s t e d t h a t t h e r e were p r o n o u n c e d differences b e t w e e n Rhinolophus a n d Pter ...
Distortion product otoacoustic emissions: Introduction
... responses”are uninterpretable because they could be just noise • If noise is reduced below lower limits of graph AND response is not above the noise floor (SNR=0 dB), the results are interpretable (i.e., consistent with hearing loss) because the reason no response was observed was because the respon ...
... responses”are uninterpretable because they could be just noise • If noise is reduced below lower limits of graph AND response is not above the noise floor (SNR=0 dB), the results are interpretable (i.e., consistent with hearing loss) because the reason no response was observed was because the respon ...
A new method for restoration of sensorineural hearing loss
... 63 hearing thresholds for each session and compared the grand averages before and after sound conditioning (figure 5). The grand average before modified sound conditioning was 59·80 dB HL, and this value decreased to 50·89 dB HL after patients underwent 2 weeks of modified sound conditioning followe ...
... 63 hearing thresholds for each session and compared the grand averages before and after sound conditioning (figure 5). The grand average before modified sound conditioning was 59·80 dB HL, and this value decreased to 50·89 dB HL after patients underwent 2 weeks of modified sound conditioning followe ...
Changes in Distortion Product Otoacoustic Emission Caused by
... in gain of the cochlear amplifier changes the level of the measured distortion products. In other words, DPOAE contralateral suppression is the consequence of a control mechanism in the auditory system which is mediated by MOC efferents. Typical MOC effects (in the form of suppression) on DPOAEs range ...
... in gain of the cochlear amplifier changes the level of the measured distortion products. In other words, DPOAE contralateral suppression is the consequence of a control mechanism in the auditory system which is mediated by MOC efferents. Typical MOC effects (in the form of suppression) on DPOAEs range ...
Occupational Noise Exposure
... the ear, which should be treated by a physician specialist. Miami University: The Miami University main campus in Oxford, Ohio and all of its regional campuses. Noise Dose: The ratio, expressed as a percentage, of (1) the time integral, over a stated time or event, of the 0.6 power of the measured S ...
... the ear, which should be treated by a physician specialist. Miami University: The Miami University main campus in Oxford, Ohio and all of its regional campuses. Noise Dose: The ratio, expressed as a percentage, of (1) the time integral, over a stated time or event, of the 0.6 power of the measured S ...
Mice do not require auditory input for the normal development of
... language faculty. While learning is an essential prerequisite for the acquisition of human speech, it is still a matter of debate whether auditory learning plays any role in the development of species-specific vocalizations in mice. To study the influence of auditory input on call development, we co ...
... language faculty. While learning is an essential prerequisite for the acquisition of human speech, it is still a matter of debate whether auditory learning plays any role in the development of species-specific vocalizations in mice. To study the influence of auditory input on call development, we co ...
Psychoacoustic Consequences of Compression in the Peripheral
... midrange levels (30-70 dB) by a power function; the shortdashed line shows a power function with an exponent, p, of 0.25, meaning that a 10-dB range of input levels is compressed into a 2.5-dB range of response levels. The long-dashed line shows the type of function that would be observed for a tone ...
... midrange levels (30-70 dB) by a power function; the shortdashed line shows a power function with an exponent, p, of 0.25, meaning that a 10-dB range of input levels is compressed into a 2.5-dB range of response levels. The long-dashed line shows the type of function that would be observed for a tone ...
World Health Organization (WHO): Make Listening Safe Campaign
... What is safe listening? Safe listening levels depend on the intensity (loudness), duration (length of time) and frequency (how often) of the exposure. These three factors are interrelated and contribute to the overall sound energy level that a person’s ears are exposed to. The total amount of sound ...
... What is safe listening? Safe listening levels depend on the intensity (loudness), duration (length of time) and frequency (how often) of the exposure. These three factors are interrelated and contribute to the overall sound energy level that a person’s ears are exposed to. The total amount of sound ...
Acoustics Today - Washington University in St. Louis
... many reasons, and in large part based on a study in which we found that the ear responded down to 1 Hz (Salt and DeMott, 1999), we started using the lowest frequency our hardware could generate, 4.8 Hz, a frequency considered to be infrasound. Over the course of hundreds of experiments, we have foun ...
... many reasons, and in large part based on a study in which we found that the ear responded down to 1 Hz (Salt and DeMott, 1999), we started using the lowest frequency our hardware could generate, 4.8 Hz, a frequency considered to be infrasound. Over the course of hundreds of experiments, we have foun ...
Assessment of Peripheral and Central Auditory
... decibel scale that is being used. Three different units are used in audiology including dB sound pressure level (SPL), dB hearing level (HL), and dB sensation level (SL). Human hearing extends from 20 to 20,000 Hz but the sensitivity at different frequencies varies in dB SPL. Humans can hear a 1000 ...
... decibel scale that is being used. Three different units are used in audiology including dB sound pressure level (SPL), dB hearing level (HL), and dB sensation level (SL). Human hearing extends from 20 to 20,000 Hz but the sensitivity at different frequencies varies in dB SPL. Humans can hear a 1000 ...
PRODuCT INFORMATION OticOn Safari SP 900, 600 and 300
... Language acquisition and classroom learning require natural sound input. With Speech Guard, sounds are as distinct as possible which provides a solid acoustic representation of the world upon which the auditory system can develop. It maintains signal fidelity and uniquely preserves the richness of s ...
... Language acquisition and classroom learning require natural sound input. With Speech Guard, sounds are as distinct as possible which provides a solid acoustic representation of the world upon which the auditory system can develop. It maintains signal fidelity and uniquely preserves the richness of s ...
Text Chapter 10.1
... 5. Recently, scientists have grown new cochlear hair cells in mice. What implications might this have for hearing loss if scientists can eventually grow new hair cells in humans? A 6. Studies have shown that hearing loss increases with age, especially in people who are regularly exposed to lo ...
... 5. Recently, scientists have grown new cochlear hair cells in mice. What implications might this have for hearing loss if scientists can eventually grow new hair cells in humans? A 6. Studies have shown that hearing loss increases with age, especially in people who are regularly exposed to lo ...