Effects of Bone Vibrator Position on Auditory Spatial Perception Tasks

McBride, Maranda; Tran, Phuong K.; Pollard, Kimberly A.; Łȩtowski, Tomasz; McMillan, Garnett P.

doi:10.1177/0018720815596272

Cited by 4 publications

(4 citation statements)

References 32 publications

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“…Due to the small interaural level differences (ILDs) and interaural time differences (ITDs) associated with BC transmission, BC is usually considered to be a less effective means of transmitting spatial information than AC ( Stenfelt & Zeitooni, 2013 ; Zeitooni et al, 2016 ). The maximum ITD via BC is about 0.2 ms while AC ITDs range up to about 0.65 ms ( McBride et al, 2015 ). The limited ILDs and ITDs for BC make it difficult for listeners to isolate the BC stimulation presented to either side of the skull ( Agterberg et al, 2011 ).…”

Section: Introductionmentioning

confidence: 99%

“…BC stimulation was at the condyle and all stimuli were bandpass-filtered (0.3–5 kHz) in this study. McBride et al (2015) studied the effect of BC stimulation position on spatial acoustic perception tasks. They measured localization accuracy for AC headphones and BCDs for three different stimulation positions (in front of, above, and behind the participant’s ears) and found comparable localization accuracy for BC transducers placed in front of or above the participant's ears as for headphones.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Stimulation Position and Frequency Band on Auditory Spatial Perception with Bilateral Bone Conduction

Wang

Sang

et al. 2022

Trends in Hearing

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Virtual sound localization tests were conducted to examine the effects of stimulation position (mastoid, condyle, supra-auricular, temple, and bone-anchored hearing aid implant position) and frequency band (low frequency, high frequency, and broadband) on bone-conduction (BC) horizontal localization. Non-individualized head-related transfer functions were used to reproduce virtual sound through bilateral BC transducers. Subjective experiments showed that stimulation at the mastoid gave the best performance while the temple gave the worst performance in localization. Stimulation at the mastoid and condyle did not differ significantly from that using air-conduction (AC) headphones in localization accuracy. However, binaural reproduction at all BC stimulation positions led to similar levels of front-back confusion (FBC), which were also comparable to that with AC headphones. Binaural BC reproduction with high-frequency stimulation led to significantly higher localization accuracy than with low-frequency stimulation. When transcranial attenuation (TA) was measured, the attenuation became larger at the condyle and mastoid, and increased at high frequencies. The experiments imply that larger TAs may improve localization accuracy but do not improve FBC. The present study indicates that the BC stimulation at the mastoid and condyle can effectively convey spatial information, especially with high-frequency stimulation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of Stimulation Position and Frequency Band on Auditory Spatial Perception with Bilateral Bone Conduction

Wang

Sang

et al. 2022

Trends in Hearing

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“…The BM speech lacks the information at higher frequencies as the TM speech due the filtration higher frequency component by the skin and the muscle along the sound transmission path . The background noise did not affect these voice information because they were recorded over the skin surface near the skull bone [2][3] [4].…”

Section: Throat Microphone (Tm)mentioning

confidence: 99%

“…This evidence the speech information is recorded by the throat mic from the skull bone. The placements of the bone mic near the speaker head was studied and their speech intelligibility was reported high near the chin region, next collar bone, vertex and next condyle [3] [4].We used the condyle location near the ear as shown in figure No: 4 to record the speech from speaker head [7]. The hardware technical specification of both the throat mic and the original bone mic is presented in the TableNo:1.From the table the working principle of the original bone conduction microphone and the throat microphone are different hence there will be difference in the outcome of the signal, still both the microphone senesce the vibration, by taking this a advantage we used the throat microphone as a recording device for the bone speech.…”

Section: Fig: 2 Transmission Of Speech Through Bones and Musclesmentioning

confidence: 99%

A CNN based Speaker Recognition System using an Alternate Bone Microphone

Nawas K*,

Khan

2019

IJITEE

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State-of-art speaker recognition system uses acoustic microphone speech to identify/verify a speaker. The multimodal speaker recognition system includes modality of input data recorded using sources like acoustics mic,array mic ,throat mic, bone mic and video recorder. In this paper we implemented a multi-modal speaker identification system with three modality of speech as input, recorded from different microphones like air mic, throat mic and bone mic . we propose and claim an alternate way of recording the bone speech using a throat microphone and the results of a implemented speaker recognition using CNN and spectrogram is presented. The obtained results supports our claim to use the throat microphone as suitable mic to record the bone conducted speech and the accuracy of the speaker recognition system with signal speech recorded from air microphone get improved about 10% after including the other modality of speech like throat and bone speech along with the air conducted speech.

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