We evaluated the validity of remote pure tone audiometric testing conducted from North America on subjects in South Africa. Desktop-sharing computer software was used to control an audiometer in Pretoria from Dallas, and PC-based videoconferencing was employed for clinician and subject communication.
The air and bone conduction thresholds recorded in a soundproof booth with the KUDUwave™ audiometer corresponded within accepted test-retest variability (within 5 dB for air conduction and within 10 to 15 dB for bone conduction) to those of an industry standard audiometer in the same test environment.
This study was conducted using the KUDUwave™ diagnostic audiometer and comparing manual air and bone conduction with masking testing of the KUDUwave™ with manual testing on a current golden standard audiometer for air and bone conduction with masking. The results are comparable and within test retest limits meaning the KUDUwave™ tests manually as accurate as the golden standard
SRT and PTA correlate well with an acceptable standard deviation. PTA and SDT correlate as expected with an acceptable standard deviation. The KUDUwave™ PTA, SRT and SDT correlate clinically with each other. The KUDUwave™ can confidently be used for Speech Audiometry.
The study was study to verify that the KUDUwave™ will accurately tests speech audiometry as predicted after calibration. The n value of 16 was increased to 34 ears to verifying that speech testing is accurate. This study confirms that speech testing is accurate. Important is to realise that conventional speech testing happens with an operator reading words live while monitoring a sensor whether the words were read at the correct VU (threshold). The KUDUwave™ has clinically validated accurate thresholds with pre-recorded word lists. The KUDUwave™ is much more accurate than conventional live speech audiometry.
This study provides evidence that valid diagnostic air and bone conduction pure tone audiometry can be conducted using a computer-based audiometer with increased attenuation noise excluding earcups and live monitoring of ambient noise in a natural environment or industrial setting.Read More
Test-retest threshold correspondence in the booth and natural environments were within ± 5 dB in 96.7% and 97.5% of comparisons respectively. No significant differences were noted when AC hearing thresholds determined in the telehealth configuration were compared to those recorded in the gold standard booth environment. Threshold correspondence between the telehealth environment on the one hand and booth and natural environments, on the other hand, were within ±5 dB in 82% and 85% of comparisons, respectively.
This dissertation validates automated testing in extreme fluctuating noisy environments.Read More
The RETSPL values of ISO 389-5 cannot be used to do EHF testing that is comparable with the the golden standards Sennheiser HDA200 earphones. The newly determined RETSPL values of the KUDUwave™ are comparable with the golden standards Sennheiser HDA200 headset calibrated to ISO 389-5. The EHF RETSPL values of the KUDUwave™ are 13.5 dB for 9000 Hz, 12.5 dB for 10,000 Hz, 21.5 dB for 11,200 Hz, 25.5 dB for 12,500 Hz, 32.4 dB for 14,000 Hz and 41 dB for 16,000 Hz.Read More
The test-retest reliability of all frequencies are within the required +/-10dB range. None of the test-retest results differed with more than 2.6dB on average. The test-retest reliability of all standard frequencies and of all extended high frequencies grouped together are 0.7dB and 1.4dB respectively. The test-retest reliability of the KUDUwave™at all frequencies are well within the acceptable range for accurate audiology testing.Read More
Air and bone conduction thresholds of the computer based audiometer corresponded to those of the industry standard audiometer within typical test-retest reliability limits. Audiometric testing with a computer-based audiometer with insert earphones, additional circumaural earcup attenuation, and a bone-oscillator assembly therefore provide equivalent thresholds compared with conventional audiometry with an industry standard audiometer—at least in a sound booth test environment.Read More
Historically diagnostic air and bone conduction audiometry has been conducted in conventional annually certified audiometric test booths that allow for testing of hearing thresholds down to 0 dB. Advances in technology with double transducer attenuation incorporating insert earphones with circumaural earcups and real-time on-screen monitoring of noise provide both passive control and active quantification of transient extraneous interference for testing outside of a booth.Read More
Valid diagnostic pure-tone audiometry can be performed in a natural environment with recently developed technology, offering the possibility of access to diagnostic audiometry in communities where sound-treated booths are unavailableRead More
Valid diagnostic pure-tone audiometry can be performed in a natural environment with recently developed technology, offering the possibility of access to diagnostic audiometry in communities where sound-treated booths are unavailable
This is a well-constructed large study done with the KUDUwave™ with overwhelming evidence that the KUDUwave™ tests accurately outside a sound booth in an uncertified ambient noise environments
The results of the study confirm the clinical validity of the use of the Kuduwave™ 5000 audiometer for medical surveillance audiometry without a sound-treated environment, if the audiometrist carries out due diligence in terms of evaluating the suitability of the test environment. The study also confirms the clinical validity of the calculation of Percentage Loss of Hearing without a sound-treated room.Read More
Automated audiometry provides reliable, accurate, and time-efficient hearing assessments for normal-hearing and hearing-impaired adults. Combined with an asynchronous telehealth model it holds significant potential for reaching under-served areas where hearing health professionals are unavailable.Read More
No significant difference was noted between thresholds obtained with automated air and bone conduction audiometry when compared to manual air and bone conduction audiometry. Automated audiometry demonstrated similar time-efficiency to manual audiometry procedures. Overall automated air and bone conduction audiometry demonstrated comparable test-retest reliability and accuracy compared to manual audiometry and presented with similar recording times.
This clinical study was done on the KUDUwave™ to verify the accuracy of the KUDUwave™'s automated air and bone conduction software compared with the golden standard of manual testing with the same device. This study provides adequate evidence that the automated air and bone conduction testing with the KUDUwave™ is reliable and accurate.
Diagnostic air- and bone-conduction audiometry in schools, without a sound treated room, is possible with sufficient earphone attenuation and real-time monitoring of environmental noise. Audiological diagnosis on site for school screening may address concerns of false-positive referrals and poor follow-up compliance and allow for direct referral to audiological and/or medical intervention
This is a another well-constructed large study done with the KUDUwave™ with overwhelming evidence that the KUDUwave™ tests accurately outside a sound booth in uncertified ambient noise environments
Ambient noise typical of that found in a non-sound-treated room, did not affect the accuracy of air conduction hearing thresholds obtained with the KUDUwave™. The KUDUwave™ may be a viable method of testing when a clinical audiometer and sound booth are not available.Read More
Accuracy of Remote Hearing Assessment in a Rural Community. (Publication)
The current study demonstrates the validity of using synchronous telemedicine for conducting hearing assessments in a remote rural agricultural community without a sound booth.
The current study demonstrates the validity of using synchronous telemedicine for conducting hearing assessments in a remote rural agricultural community without a sound booth.Read More
The technical specifications of the Kuduwave™ 5000 screening audiometer were found to comply with the relevant standards for hearing conservation programme purposes. The audiometrist must ensure compliance with the calibration requirements annually, or three-monthly if used as a mobile device, and that the ambient noise levels in the test room comply with the standards set for the test environment for the Kuduwave™ 5000 headset.Read More