Machine hearing system for teleconference authentication with effective speech analysis

The speaker identification in Teleconferencing scenario, it is important to address whether a particular speaker is a part of a conference or not and to note that whether a particular speaker is spoken at the meeting or not. The feature vectors are extracted using MFCC-SDC-LPC. The Generalized Gamma Distribution is used to model the feature vectors. K-means algorithm is utilized to cluster the speech data. The test speaker is to be verified that he/she is a participant in the conference. A conference database is generated with 50 speakers. In order to test the model, 20 different speakers not belonging to the conference are also considered. The efficiency of the model developed is compared using various measures such as AR, FAR and MDR. And the system is tested by varying number of speakers in the conference. The results show that the model performs more robustly.

Mode Analysis of Tectorial Membrane in Cochlea

We investigated the dispersion characteristics of the propagation modes that progress on the tectorial membrane (TM). Recent studies have uncovered complex TM behavior and a possibility that TM might play an important role in the hearing system. An interaction between the TM and the fluid induces propagation modes, which are called TM modes. We found that there are several kinds of TM modes and analyzed the direction of the displacement of the TM that is caused by each mode. We also investigated the structural dependency of the angular wavenumber of each mode.

The effect of coronavirus disease 2019 on the hearing system

Objective This study aimed to evaluate different auditory regions with audiological tests, based on the presumption that there may be damage to the structures in the hearing system after coronavirus disease 2019. Methods Twenty individuals with no history of coronavirus disease 2019 and 27 individuals diagnosed with coronavirus disease 2019 were compared. Pure tone, speech and extended high-frequency audiometry, acoustic immitansmetry, transient evoked and distortion product otoacoustic emissions testing, and auditory brainstem response testing were conducted. Results The pure tone audiometry and extended high-frequency mean threshold values were higher in the coronavirus disease 2019 group. The transient evoked otoacoustic emissions signal-to-noise ratios were bilaterally lower at 4 kHz in individuals with a coronavirus disease 2019 history. In the auditory brainstem response test, only the interpeak latencies of waves III–V were significantly different between groups. Conclusion Coronavirus disease 2019 may cause damage to the hearing system. Patients should be followed up in the long term with advanced audiological evaluation methods in order to determine the extent and level of damage.

The Biophysical Function of the Human Eardrum

The hearing analyzer consists of two main systems: the peripheral hearing system, formed of the outer ear, the middle ear and the inner ear and the central hearing system, which contains the nervous pathways which ensure the transmission of the nervous influx and the hearing area where the information is analyzed and the hearing sensation is generated. The peripheral hearing system achieves the functions of transmission of the sound vibration, the analysis of the acoustic signal and the transformation of the acoustic signal in nervous inflow and the generation of the nervous response. The human hearing is characteristics: 1. The eardrum vibrates from the sound waves; 2. Auditory ossicles amplify the stimulus; 3. In an oval window, the vibration is transmitted to the fluid space of the inner ear; 4. It vibrates the basilar membrane; 5. What is pressed against the membrane tectoria; 6. The stereocilliums of the hair cell bend, ion channels open; 7. Hair cell depolarizes; 8. Stimulus is dissipated in cerebrospinal fluid VIII (vestibulo¬cochlearis); 9. Temporal lobe primary auditory cortex (Brodman 41, 42); 10. Association pathways: speech comprehension (Wernicke area).

A High Secured Ecc Based Iot Audiometric System For Cloud Based Dynamic Sensor Domain Environment

This paper is made based on the requirement of different domain users for effective hearing system. The system uses different devices to enhance the audio capability of different users at different application environment. The system uses IoT devices, sensors and different gateways for effective use of IoT based systems. The system will enhance the hearing capability of all users at different conference or personal or professional environments for the effective hearing capability among different hearing capabilities. It provides the environment to increase or decrease the volume of the source system based on the hearing capability of participants in the hearing environment. It can be used in any domain like conferences, home environment, education institutions and at public locations. It also adopts a security algorithm to protect the customer’s data in encrypted format at cloud system. It recognizes the candidate at any time based on the ID assigned to an individual.

Dual sound reception apparatus in protocetid whales

Modern cetaceans dwell in an underwater world of sound. Due to the specific physico-acoustic conditions inherent in the aquatic environment, sound reception pathway in modern whales drastically differs from that of land mammals and implies deep modification of their external acoustic apparatus. To fathom the implementation of this underwater hearing system, the rare data on the auditory region of early whales are paramount. Among them, previous studies on protocetid auditory region highlighted the presence of two potential acoustic portals on the lateral wall of the bulla: a tympanic ring and a tympanic plate. Through an anatomical survey, I explore the external sound reception apparatus of a protocetid whale and discuss the functionality of these two sound portals. The study of the tympanic ring, allow me to propose a reconstruction of the tympanic membrane of this early whale, suggesting that this structure was functional for aerial hearing. 3D investigation of the bone thickness of the bulla reveals the presence of homologous areas of reduced thickness within the tympanic plate of protocetid and modern cetaceans, highlighting a common functioning of this structure for underwater hearing. Thus, this detailed anatomical survey of the lateral wall of a protocetid tympanic bulla confirms the functionality of the two contiguous acoustic portals and sheds new light on the sound transmission mechanism in these early whales.

Physiological Response of the Physical Capabilities of Adolescents with Sensorineural Hearing Loss to Regular Adaptive Handball

Training within the framework of adaptive sports and especially handball helps to significantly increase the level of adaptation to social conditions in people with hearing system pathology. Regular practice of this sport increases the accuracy of motor acts and stimulates general adaptive capabilities. The study involved 31 male teenagers aged 13-14 with sensorineural hearing loss of I-II degree. Of these, two groups were formed: the observation group (14 adolescents), who began to engage in adaptive handball, and the comparison group (17 adolescents), who continued to engage in physical education at school. The results of the annual medical examination, the results of functional tests and control standards of physical fitness were used. The results were processed using the Student's t test and correlation analysis.Regular physical trainings within the framework of handball allowed to increase the coordination-motor potential and stabilize the vestibular-dynamic stability of adolescents. They increased their physical readiness and the accuracy of their motor actions fulfillment in the conditions of play and in everyday life.Regular training in adaptive handball in adolescents with sensorineural hearing loss increases coordination abilities, speed capabilities, strength qualities and general endurance.