Middle-ear Mechanics: The Dynamic Behavior of
... basis of the three degrees of freedom, was aligned with anatomical landmarks of the ossicular chain. The transfer functions were calculated for each motion component. They indicate the amount of a certain motion component transmitted from the malleus to the incus and the phase difference between the ...
... basis of the three degrees of freedom, was aligned with anatomical landmarks of the ossicular chain. The transfer functions were calculated for each motion component. They indicate the amount of a certain motion component transmitted from the malleus to the incus and the phase difference between the ...
structure and function of the auditory system in the clown knifefish
... sounds, presented shocks and timed all aspects of the experiments. Experiments were conducted in test tanks placed in the centre of either of two sound-attenuated rooms. The rooms had walls 20 cm thick filled with sand (see Popper & Clarke, 1979), which were sufficient to attenuate ambient noises in ...
... sounds, presented shocks and timed all aspects of the experiments. Experiments were conducted in test tanks placed in the centre of either of two sound-attenuated rooms. The rooms had walls 20 cm thick filled with sand (see Popper & Clarke, 1979), which were sufficient to attenuate ambient noises in ...
Institutionen för systemteknik Department of Electrical Engineering Examensarbete Implementation of Wavelet-Kalman Filtering
... Figure 2. 9: Complete diagram of Kalman filter equations in both; time and measurement update steps. 14 Figure 3. 1: Recording system hardware setup. ----------------------------------------------------------------------- 17 Figure 3. 2: ABR acquisition software using Matlab®. ---------------------- ...
... Figure 2. 9: Complete diagram of Kalman filter equations in both; time and measurement update steps. 14 Figure 3. 1: Recording system hardware setup. ----------------------------------------------------------------------- 17 Figure 3. 2: ABR acquisition software using Matlab®. ---------------------- ...
How to select the optimum BTE fitting option
... more gain can be obtained without feedback. Additionally, the more occluded approach helps prevent some low frequency gain from escaping from the ear canal while still providing minimal occlusion effect. In most cases, the increased low frequency gain increases the observed benefit of adaptive signa ...
... more gain can be obtained without feedback. Additionally, the more occluded approach helps prevent some low frequency gain from escaping from the ear canal while still providing minimal occlusion effect. In most cases, the increased low frequency gain increases the observed benefit of adaptive signa ...
Perceptual Consequences of Cochlear Hearing Loss and their
... relatively low (13 to 34 dB SPL). The curve shown by open circles was obtained later in the experiment when the AP threshold was higher (53 to 83 dB SPL). Post mortem (squares), no AP threshold was measurable. Redrawn from Sellick et al (1982). ...
... relatively low (13 to 34 dB SPL). The curve shown by open circles was obtained later in the experiment when the AP threshold was higher (53 to 83 dB SPL). Post mortem (squares), no AP threshold was measurable. Redrawn from Sellick et al (1982). ...
4. Binaural reproduction
... measurements are commonly made at the entrances of the ear canals, which are blocked with earplugs. However, depending on the type of headphone used, this method may cause timbral coloration in reproduction, which is caused by, e.g., the difference in the acoustic coupling of the ear canal to the he ...
... measurements are commonly made at the entrances of the ear canals, which are blocked with earplugs. However, depending on the type of headphone used, this method may cause timbral coloration in reproduction, which is caused by, e.g., the difference in the acoustic coupling of the ear canal to the he ...
Chapter 26_FM
... The use of a remote microphone provides an advantage because the transmitted signal preserves a consistent input level even if the distance between the talker and the listener changes. Because the speech signal is picked up inches from the talker’s mouth, the transmitted signal maintains a positive ...
... The use of a remote microphone provides an advantage because the transmitted signal preserves a consistent input level even if the distance between the talker and the listener changes. Because the speech signal is picked up inches from the talker’s mouth, the transmitted signal maintains a positive ...
Soundscape: Voume 5, Number 1 - World Forum for Acoustic Ecology
... other on soundscape composition. Ellen Waterman presented a paper on Canadian radio art. For further information about In and Out of the Sound Studio, please go to http://andrasound.org. Next year, in conjunction with the Architecture-Music-Acoustics conference, hosted by the architecture department ...
... other on soundscape composition. Ellen Waterman presented a paper on Canadian radio art. For further information about In and Out of the Sound Studio, please go to http://andrasound.org. Next year, in conjunction with the Architecture-Music-Acoustics conference, hosted by the architecture department ...
Research Article Effects of Contralateral Acoustic Stimulation on
... are typically reduced in amplitude and shifted upward in frequency by CAS. We investigated whether similar frequency shifts and magnitude reductions were observed behaviorally in the fine structure of puretone hearing thresholds, a phenomenon thought to share a common underlying mechanism with SOAEs ...
... are typically reduced in amplitude and shifted upward in frequency by CAS. We investigated whether similar frequency shifts and magnitude reductions were observed behaviorally in the fine structure of puretone hearing thresholds, a phenomenon thought to share a common underlying mechanism with SOAEs ...
ch8
... for music reproduction, the absolute aim may be to ensure that the signal heard by the listener is identical to that the music producer experienced when producing the recording. Another example would be to consider home theatre reproduction. In such a case, the signal received by the listener should ...
... for music reproduction, the absolute aim may be to ensure that the signal heard by the listener is identical to that the music producer experienced when producing the recording. Another example would be to consider home theatre reproduction. In such a case, the signal received by the listener should ...
The relationship between frequency selectivity and pitch
... NH and hearing-impaired 共HI兲 listeners. While they found both reduced frequency selectivity and reduced f 0 discrimination performance for many of the HI listeners, there was only a weak correlation between the two measures. Hoekstra 共1979兲 and Hoekstra and Ritsma 共1977兲 also measured f 0 discrimina ...
... NH and hearing-impaired 共HI兲 listeners. While they found both reduced frequency selectivity and reduced f 0 discrimination performance for many of the HI listeners, there was only a weak correlation between the two measures. Hoekstra 共1979兲 and Hoekstra and Ritsma 共1977兲 also measured f 0 discrimina ...
The Auditory Transduction Chain - Humboldt
... thank them for many an advice regarding the experiments and for helping me out whenever I had problems with the electrode puller. I am very grateful to Undine Schneeweiß for providing the different chemical solutions needed in the laboratory. The ITB was a wonderful place for my scientific work. Esp ...
... thank them for many an advice regarding the experiments and for helping me out whenever I had problems with the electrode puller. I am very grateful to Undine Schneeweiß for providing the different chemical solutions needed in the laboratory. The ITB was a wonderful place for my scientific work. Esp ...
Auditory Beats in the Brain - Amadeux Multimedia Network
... when he was working at Harvard University to measure a spectrum of binaural beats [see upper illustration on page 102]. He adopted the frequency of one oscillator until the interval was large enough so that the beats seemed “rough”; then he noted the frequency of the unchanged reference oscillator. ...
... when he was working at Harvard University to measure a spectrum of binaural beats [see upper illustration on page 102]. He adopted the frequency of one oscillator until the interval was large enough so that the beats seemed “rough”; then he noted the frequency of the unchanged reference oscillator. ...
Bell-Harp User Manual It
... At Inventis, we believe strongly in the desirability of integrating different diagnostic tools. Besides audiometers, we have developed many other devices for ENT specialists and audiologists, such as a wireless video otoscope, endoscopic video cameras and stroboscopic light sources. A significant ad ...
... At Inventis, we believe strongly in the desirability of integrating different diagnostic tools. Besides audiometers, we have developed many other devices for ENT specialists and audiologists, such as a wireless video otoscope, endoscopic video cameras and stroboscopic light sources. A significant ad ...
Acoustical properties of air-saturated porous material with
... foams with randomly distributed dead-ends or for the structured material with surface dead-ends (Fig. 9 in Ref. 2). However, a periodic arrangement with interactions is possible when the dead-end pores are opened into the main pores as shown in Fig. 1. In this case, the interaction between the dead- ...
... foams with randomly distributed dead-ends or for the structured material with surface dead-ends (Fig. 9 in Ref. 2). However, a periodic arrangement with interactions is possible when the dead-end pores are opened into the main pores as shown in Fig. 1. In this case, the interaction between the dead- ...
Infrasound and land based mammals
... other than humans are largely conspicuous by their absence. There also appears to be a dearth of information relative to those inhabiting freshwater. Which might presuppose that LFN including infrasound poses them little or no problem. Such a premise cannot be discounted but until explored seems to ...
... other than humans are largely conspicuous by their absence. There also appears to be a dearth of information relative to those inhabiting freshwater. Which might presuppose that LFN including infrasound poses them little or no problem. Such a premise cannot be discounted but until explored seems to ...
Low Frequency Noise and Infrasound
... other than humans are largely conspicuous by their absence. There also appears to be a dearth of information relative to those inhabiting freshwater. Which might presuppose that LFN including infrasound poses them little or no problem. Such a premise cannot be discounted but until explored seems to ...
... other than humans are largely conspicuous by their absence. There also appears to be a dearth of information relative to those inhabiting freshwater. Which might presuppose that LFN including infrasound poses them little or no problem. Such a premise cannot be discounted but until explored seems to ...
Low Frequency Noise. What we know, what we do not
... A few persons with highly sensitive hearing have been discovered amongst the many complainants who have been investigated. For example, one subject had about a 15dB lower threshold than average in the infrasound region. (Yamada,1980) However, it is normal to find that there is little difference betw ...
... A few persons with highly sensitive hearing have been discovered amongst the many complainants who have been investigated. For example, one subject had about a 15dB lower threshold than average in the infrasound region. (Yamada,1980) However, it is normal to find that there is little difference betw ...
Structure, development, and evolution of insect auditory systems
... for sound reception as opposed to their mechanoreceptive functions throughout the insect body; they are classified as Type 1 sensilla (McIver, 1985). Field and Matheson (1998) provide extensive and excellent review of chordotonal organ anatomy and function. In tympanal chordotonal sensilla, a modifi ...
... for sound reception as opposed to their mechanoreceptive functions throughout the insect body; they are classified as Type 1 sensilla (McIver, 1985). Field and Matheson (1998) provide extensive and excellent review of chordotonal organ anatomy and function. In tympanal chordotonal sensilla, a modifi ...
A.2 Types of hearing aids
... Developments in hearing health care have seen the dawn of the need to interconnect hearing aid devices wirelessly. This is referred to as a body network configuration, namely from the left ear to the right ear and vice versa, but also from hearing aids to nearby peripherals (such as mobile phones), ...
... Developments in hearing health care have seen the dawn of the need to interconnect hearing aid devices wirelessly. This is referred to as a body network configuration, namely from the left ear to the right ear and vice versa, but also from hearing aids to nearby peripherals (such as mobile phones), ...
Experiments in comparative hearing: Georg von BEkEsy and beyond
... to compare all these to data from human cochleae (Fig. 1). The value of these data has, of course, over the long time of subsequent studies with successive technical refinements, been placed in doubt. Békésy’s technique required the use of very loud sounds (>120 dB SPL) and it has since been clearly ...
... to compare all these to data from human cochleae (Fig. 1). The value of these data has, of course, over the long time of subsequent studies with successive technical refinements, been placed in doubt. Békésy’s technique required the use of very loud sounds (>120 dB SPL) and it has since been clearly ...
Downloaded - Northwestern Auditory Research Lab
... the absence of data, accuracy of interpolation (a step necessary for our chosen analyses) would be compromised; therefore, data were further treated to avoid this bias, as described below. Of the 22 subjects, 10 showed gaps spanning >25 points (100 Hz at 1 kHz), only in the 50–40 or 45–35 dB SPL le ...
... the absence of data, accuracy of interpolation (a step necessary for our chosen analyses) would be compromised; therefore, data were further treated to avoid this bias, as described below. Of the 22 subjects, 10 showed gaps spanning >25 points (100 Hz at 1 kHz), only in the 50–40 or 45–35 dB SPL le ...
12654134_Mayo Clinic Talk [6] KJW.
... • Folmer et al (1999) reported patients with depression rated the severity of their tinnitus higher although loudness scores were the same. • Interactions between tinnitus, stress, anxiety and depression can be complex and dualdirectional (Andersson & McKenna, 1998; Halford & Anderson, 1991)—princip ...
... • Folmer et al (1999) reported patients with depression rated the severity of their tinnitus higher although loudness scores were the same. • Interactions between tinnitus, stress, anxiety and depression can be complex and dualdirectional (Andersson & McKenna, 1998; Halford & Anderson, 1991)—princip ...
A -Outer Ear
... Because the human ear cannot hear very low frequencies, the sound of one’s own heartbeat is inaudible. At the other end of the scale, a highly pitched whistle producing 30,000 cycles per second is not audible to the human ear, but a dog can hear it. The third characteristic of sound detected by the ...
... Because the human ear cannot hear very low frequencies, the sound of one’s own heartbeat is inaudible. At the other end of the scale, a highly pitched whistle producing 30,000 cycles per second is not audible to the human ear, but a dog can hear it. The third characteristic of sound detected by the ...